Guide to Unlimited Cellular Data Plans: Understanding the Limits

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Affordable, unlimited data is the need most often expressed by frequent travelers we talk with, so we're constantly tracking the options.

All of the major carriers actively advertise unlimited data plans.  Others also have grandfathered plans that might still be available. And some resellers have managed to find ways to offer unlimited data plans to consumers.

Not all unlimited plans are created equally, however (you'd think 'unlimited' means 'unlimited' - but it doesn't).

Spectrum, or the amount of bandwidth available for the carriers to deliver, is a limited resource that needs to be managed. As such, the carriers work to protect their bandwidth.

As the demand for data increases, the term 'unlimited' as been redefined to try to find balance between capacity and consumer desire.

Understanding these restrictions is key to determining if an unlimited data plan will meet your needs, especially if you're seeking a home internet replacement on the road.


The sections included in this guide:


Understanding Unlimited Plan Restrictions

The most typical restrictions on unlimited plans are slowing down the speeds delivered. Sometimes, unlimited high speed data is only provided for certain activities.

For a quick (5m) video overview of the differences between Network Management & Throttling - and Mobile Hotspot Caps:

Slowing Speeds Down 

Slowing down speeds can get a bit confusing, and you'll see terms like Throttling and Network Management.  Here are the differences:

  • Throttling: Is when a carrier or reseller always slows down speeds. This might be for the entire month, or only after a certain amount of data is used. Here's some examples:
    • AT&T's Unlimited Choice plan always slows speeds to 3 mbps
    • Verizon's 'Safety Mode' on their tiered data plans slow speeds to 128kbps after the data cap is reached, to avoid overages.
    • Many carriers only allow 10 - 15 GB of high speed mobile hotspot use, which is then slowed down to super slow speeds for the rest of the month.
  • Network Management: Is when a carrier reserves the right to de-prioritize the traffic of high bandwidth users. They generally have a threshold before this kicks in (22-32GB of usage in a month). After that threshold is reached, if the customer is on a cellular tower that is experiencing congestion, their usage might be slowed down. Once the tower is no longer congested, full speeds resume. For RVers visiting heavily populated areas with overused towers, this might feel like like throttling in practice at times. But when on underused towers, you may never experience it.
    • Example: Think of it as if you were driving on a highway that has a high occupancy / car pool lane. During normal traffic, all lanes are at full speed because there's not much traffic. But during rush hour, if you qualify to use the car pool lane, it's beneficial to avoid bumper to bumper traffic in the 'normal lanes'. Network management is like this - after you hit your threshold, you can no longer use the carpool lane. That will only matter during rush hour.

Mobile Hotspot / Tethering Restrictions

This restriction is the one that matters most to RVers trying to replace a home internet connection, especially those who need to work remotely or homeschool. The caps implemented on carrier direct unlimited plans are intended for occasionally getting a laptop online while away from a typical home or office internet connection. The carriers clearly do not want their customers using these plans to replace cable or DSL internet connection.

But first.. what is mobile hotspot and tethering?

  • Personal Mobile Hotspot is using a smartphone or tablet's cellular connection as a modem to get other devices (like laptops, tablets or streaming devices) online by creating a WiFi hotspot on the device.
  • Tethering is using a USB cable to directly attach the phone/tablet to a computer or router.

Both activities are treated the same by the carriers in terms of how data is categorized. Many unlimited data plans limit how much data can be used for this purpose at high speed, as unlimited data is really only intended for 'on device usage'.

If the carrier offers a dedicated mobile hotspot device to add on to the unlimited plan (such as a Jetpack/MiFi) - the mobile hotspot restriction might even apply to that line. Be sure you know the terms of your carrier (hint: Verizon has this restriction, AT&T does not)!

Additionally, any video streaming allowed by the carrier is for on device only - trying to connect a streaming device (like Apple TV, Chromecast, etc) via mobile hotspot will count against mobile hotspot caps. Using a HDMI cable out of the device to mirror it to a larger TV gets around these restrictions.

The good news is, there are 'alternative' unlimited data plans without these restrictions that we track, which you can learn more about below.

Video Throttling

Streaming video over the internet has become one of the most data intensive things people do on the internet. And the carriers have been trying to capitalize on that demand.

Most unlimited plans these days include unlimited video streaming - however some carriers reduce the resolution in order to curtail usage.

For example, one hour of streaming HD video can consume 3-4 GB of data. That's a lot of data!

Restrictions may come in the form of throttling down speeds for video streaming, or restricting the resolution itself.

Check out our guide to TV & Entertainment on the Road for a lot more details on utilizing cellular data for video streaming, including the best practices for legitimately getting around your mobile hotspot cap to view video on your larger TV screen.

 


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Which Carrier is Best for RVers?

Of course, before you go too far researching unlimited data plans offered by each of the carriers, you should also consider which carriers are most ideal for YOUR needs. Each of the carriers varies quite a bit in the coverage they offer. For those relying on mobile internet, we usually recommend having at least two carriers on board for redundancy.

We keep a separate guide updated comparing the carriers for RV use:


Unlimited Data Plans

Each carrier now offers an unlimited data plan for smartphones (and tables & mobile hotspots as add-ons). There are also 'alternate' options offered either by finding an older grandfathered in plan or via a reseller.

Here's a summary of the network management policies and costs of the unlimited options for the four major carriers. Be sure to skim through blue links at the bottom of the chart also for additional options:

Current Best Pick Data Plans for RVers & Cruisers for Each Carrier:

  • Verizon - A grandfathered/legacy unlimited data plan is the best option for most US nomads who need lots of bandwidth and nationwide high speed coverage - the plans are not subject to network management or throttling (except HD video). The options for obtaining these plans are a bit complex and always changing. Monthly rates vary from $45-249. For more information: Guide to Verizon Unlimited Data Plans.
    • Note: Verizon's new unlimited data plans only include 15GB of high speed mobile hotspot use per line (including Jetpacks) and are subject to network management. All Verizon plans are now subject to video streaming throttling, with the option to turn it off for $10/mo.
  • AT&T -  When activated on a Unlimited Plus plan, dedicated mobile hotspots are exempt from the 10GB high speed hotspot cap the smartphones are subject to. This is by far the best deal on AT&T right now with costs as low as $20/mo when added to a multi-line plan, or $90/mo standalone.  However it seems AT&T could be making shifts to no longer allow these types of devices on unlimited (more Info: AT&T Mobile Hotspots “No Longer Eligible” for Unlimited Data Plans).
  • T-Mobile - T-Mobile One+ International smartphone plans include sunlimited 4G personal hotspot use for $95/month which is a great option (those over 55 qualify for a $20/month discount!) - however hotspot use is de-priotized a bit over on device use.
    • Alternate: Reseller Millenicom still offers the older style 'Simple Choice' data only plans that include unlimited video streaming for as little as $35/month, as well as unlimited hotspot data plans for $70/month.
  • Sprint - Joining a non-profit (such as Calyx Institute or PCs for People) to obtain an unlimited Sprint plan due to some prior agreement the carrier inherited is the most affordable option out there. Pricing starts at $10/month (yes, $10 - we didn't miss a 0). For more information: Non-Profit Sprint Plans.
    • Alternates: If you prefer a direct carrier relationship, Sprint offers a mobile hotspot plan for an extra $50/mo on their Unlimited plan, or $75 as a stand alone option - neither are subject to hotspot caps. And FMCA members have access to an unlimited Sprint hotspot plan for $49.99/mo.

Unlimited Plan Options by Carrier

Video Guide

Members: Log in to view our updated video guide to unlimited data plans (updated Oct 15, 2017):

Carrier Profiles & Options

Verizon

Verizon has two different unlimited data plans - those that are grandfathered in from when they were first offered before 2011 (which have pretty much no limitations), and their new unlimited smartphone plans beginning February 13, 2017.

The NEW Unlimited Data Plan

Starting on August 23, 2017 Verizon had adjusted their unlimited plans - introducing two different choices, with additional limitations to understand.

Policies:

  • Throttling & Network Management:
    • Go Unlimited: Always subject to network management
    • Beyond Unlimited: The plans are subject to network management after 22GB of usage in a month.
  • Mobile Hotspot / Tethering Use:
    • Go Unlimited: All mobile hotspot use is at 600 kbps.
    • Beyond Unlimited: The plans include 15GB of high speed mobile hotspot use in a month, and then speed for mobile hotspot is reduced to 600 kbps for the remainder of the month.  Jetpacks & MiFis can be added to the plan, however only include 15GB of high speed mobile hotspot use too.
  • Video Optimization:
    • Go Unlimited: Video on smartphones is reduced to DVD quality at 480p, and on tablets reduced to 720p.
    • Beyond Unlimited: Video on smartphones is reduced to 720p, and on tablets & tethered devices reduced to 1080p. For $10/mo per line you can enable 4K video streaming.
  • Additional Devices: 
    • Single Line: Verizon will activate a single line and then a limited number of additional mobile hotspots & tablets can be added before being considered a multi-line account at just $20/month.
    • Multi Line: Two or more smartphones on an account bumps the base price up to multi-line pricing. Up to 10 devices may be on a consumer account.
  • Stand Alone Hotspot Line:
    • Verizon requires that the primary line be a smartphone - mobile hotspot devices can not be setup as a stand-alone plan.

Unlimited Data History - Grandfathered Plan:

Up until 2011, Verizon offered a truly unlimited smartphone data plan - even allowing for mobile hotspot use without throttling or network management. They continue to grandfather some customers in, but high usage customers out of contract are regularly getting termination letters.

Grandfathered Plan Worth Keeping?: If you still have this plan, it is worth getting/keeping it in contract to best protect it. For as long as Verizon will continue to honor these plans, they are considered gold. There are ways to legitimately use this plan in a data only device (router or mobile hotspot) and reduce the costs to as low as $44.95/month. For full details: Grandfathered/Legacy Unlimited Data Plans.

Alternate Options:

There are some other options for unlimited Verizon Data:

  • Grandfathered/Legacy Unlimited Data Plans:  Verizon continues to grandfather some of these plans in, and they are still obtainable by transfer of liability and rental.  Prices range from $45-249/month - and the options for acquiring these plans vary quite a bit. Verizon has been aggressively shutting these plans down starting in 2016, so make sure you fully understand the risks of this option in our linked guide.
  • PopData: For those on tiered postpaid Verizon data plans, new as of October 2016, the carrier allows customers to purchase 30 minute ($2) and 60 minute ($3) unlimited data sessions, giving a lot of flexibility for consumers to handle large file transfers when needed.
  • Verizon Prepaid Unlimited Data Plan - Verizon directly offers an unlimited smartphone plan, but only includes unlimited data on the smartphone and no mobile hotspot use. Also, all use is subject to network management at all times, and video is reduced to 480p resolution.
  • Xfinity Mobile - Xfinity Mobile service is a hybrid wireless service combining Verizon's cellular network with the network of 16 million Xfinity Wi-Fi hotspots. Xfinity Mobile is only available to Comcast cable TV and internet (both!) customers. So if you do not have Comcast cables in a stationary neighborhood, this service is not available to you.  The plan includes 20GB of high speed data per month, and then is reduced to 1.5 mbps (still quite usable).
  • US Mobile - US Mobile is a prepaid MVNO that offers unlimited data plans on the Verizon network without a throttle cap on hotspot data other than the throttled speed of the plan you choose. There is currently a plan that offers full LTE speeds for all data - including hotspot data. All plans are subject to network management at varying levels.
  • FMCA - The Family Motor Coach Association offers an "unlimited" data plan with Verizon to their members for $49.99/month. It includes 25GB of highspeed mobile hotspot use, then "2G speeds" afterwards.

AT&T

AT&T has experimented with unlimited data plans for a long time. They have options for smartphones, tablets, and connected cars. There are also some occasional rental options that come up.

ATT-Logo1'Unlimited' Smartphone Plans

 

  • Throttling & Network Management Policy:
    • Unlimited Plus: The plans are just subject to network management after 22GB of usage in a month.
    • Unlimited Choice: The plans are always throttled to 3 mbps speeds.
  • Video Optimization:
    • Unlimited Plus: HD Video streaming is allowed on device, but 'Stream Saver' needs to be manually turned off to get HD.
    • Unlimited Choice: Video is restricted to SD quality and Stream Saver can not be turned off.
  • Mobile Hotspot / Tethering Use: Unlimited Plus will include 10GB of high speed mobile hotspot use on smartphone and tablet lines, that then drops to 128kpbs (2G speeds).
    • Data Only Devices Exemption: If you have a data first device (like a mobile hotspot, home base or connected car) - it does not have the high speed data cap, just the network management.
    • Unlimited Choice (their lower cost unlimited plan) includes no mobile hotspots on smartphones & tablets, but data only devices get unlimited hotspot use at 3 mpbs speeds.
  • Additional Devices: 
    • Single Line: AT&T will activate a single line at the base price - this device may be a smartphone, tablet, mobile hotspot, Connected Car or Home Base.
    • Multi Line: Adding any second device to an account bumps the base price up to multi-line, including smartphones, mobile hotspots, tablets or Connected Car devices.
  • Stand Alone Hotspot Line:
    • AT&T currently allows mobile hotspot devices to be activated as a stand-alone plan - you do not need to have a smartphone with the carrier. This would make the device the primary line at the single line pricing.

Unlimited Data History - Grandfathered Plans:

AT&T originally had an unlimited iPhone data plan that was discontinued but grandfathered in, and then they started offering it again to subscribers of DirecTV & U-Verse in January 2016.  In March 2017, they launched Unlimited Plus and Unlimited Choice to all - which added some mobile hotspot use, and Canada/Mexico coverage.

Grandfathered Plan Worth Keeping? For most still on these older grandfathered plans, we recommend considering switching to their NEW Unlimited Plus data plan to get the mobile hotspot benefit, ability to add a data device and Canada/Mexico access.

Prepaid & Alternate Options: 
  • Connected Car 'Stand Alone' (Sept 2017 - Plan now be retired?): AT&T's connected car unlimited plan for $20/month is quite attractive, only subject to network management after 22GB of usage in a month. Using the ZTE Mobley Connected Car Device with a power adapter allows you to use the plan without a vehicle's ignition being on. This is a stand alone plan not requiring any other AT&T account, but is only available through AT&T's Connected Devices department. We have very few reports of successful activation of these plans after September 2017.
  • Tablet Prepaid Unlimited Plan: AT&T has brought back their unlimited tablet plans for $29.99. The plans are subject to network management after 22GB of usage, and do not include any mobile hotspot use.
  • Rentals: You'll find rental lines on places like eBay (vendors: KRLL and ProShop LLC) or through storefronts Your Expedited Delivery and Unlimitedville- these can generally be found for $100-199/month. Some are rental business data only lines with no limitations, and some are plans based on the old iPad plans that are now subject to network management. Shop carefully.  (Members, please check your Member Discounts page for some special offers from some vendors.)
  • GoPhone: AT&T's own prepaid subsidiary, GoPhone offers an unlimited call, text, and data plan that is always slowed to 3 mbps speeds, and is subject to network management at 22GB. All streaming is at 480p. Mobile hotspot/tethering is not permitted. This plan does, however, allow free roaming in Canada and Mexico.
  • Cricket Wireless: A prepaid brand owned by AT&T, has an unlimited data plan for smartphones that is always slowed to 8 mbps speeds (very suitable for most online tasks, including streaming video) and starting April 2, 2017 are subject to network management after 22GB of usage in a month. Customers can add on 8GB of high speed hotspot use for $10/month on select phones.
  • 4G Antenna Shop: Occasionally has a Cricket and AT&T data only plans - check for current options, or give them a call (sometimes they have a wait list for the AT&T lines if you're a current customer of their T-Mobile based service.)
  • AT&T Wireless Home Internet & Phone Rural - While not unlimited, in some markets AT&T offers a 250GB for $60/month. The plans do work nationwide however. Some RVers have been able to snag these regardless if they're in those markets.

T-Mobile

T_Mobile_logo_Magenta_lowT-Mobile One

In September 2016, T-Mobile began offering T-Mobile One plans with included unlimited data. Since launch, they have made several modifications to the plan to meet customer demands and in response to other carriers.

In August 2017, T-Mobile began offering an almost identical One plan targeting customer age 55+, called One Unlimited 55+. In order to qualify for this plan, and it's reduced pricing, the primary account holder must be age 55+. Plans cannot be greater than two lines. Otherwise, the plan offers the same features and add-ons as typical T-Mobile One plans.

However, there are caveats to this plan to consider.

  • Throttling & Network Management Policy: The plans are subject to network management after 50GB of usage in a month. They change this threshold several times a year based on what represents the top 3% of customer usage.
  • Mobile Hotspot / Tethering: The carrier offers three tiers of plans, each with their own mobile hotspot features:
    • One (base plan): Includes unlimited hotspot use at 3G speeds.
    • One+ ($10/month): Includes the first 10GB of mobile hotspot at full 4G speeds per line, and then drops to 3G speeds afterwards (512 kbps).
    • One+ International ($25/month): Unlimited 4G mobile hotspot use and not subject to the Canada/Mexico 5GB/mo cap. However, the carrier reserves the right to de-prioritize mobile hotspot use over on device use, and high data users who are primarily using the plan for tethering may be contacted by the carrier to discuss options (this seems to be an issue if you consistently consume more than 50GB of total data month and over 50% of your usage is mobile hotspot).
  • Video Resolution Throttled: One plans include free video streaming at 480p resolution. One+ plans include HD video streaming.
  • Stand Alone Hotspot Line:
    • T-Mobile currently does not offer an unlimited data plan on dedicated mobile hotspots.

Customers who have an existing Simple Choice unlimited plan are grandfathered in, and will need to opt into the new T-Mobile One plan. These older Simple Choice unlimited plans included optional Binge On (video optimization) and 14GB of mobile hotspot use at high speed, but tethering usage may be slowed down.

For more information: T-Mobile One Plan

Prepaid & Alternate Options:
  • Unlimitedville: Offers a rental/lease option for T-Mobile (Pink) at $199/month on a month-to-month basis. It is advertised as unthrottled, not subject to network management and truly unlimited. For more information: Unlimitedville.com Offers T-Mobile Unlimited Data Plan
  • 4G Antenna Shop: Offers business plans on the T-Mobile network. Their pricing varies quite a bit, so check in to see what they currently offer and be sure to read the fine print.
  • Millenicom: Offers their Ultimate LTE plan for $70/month, with unlimited 4G hotspot use in North America (Canada/Mexico restricted to 5GB/mo) - but video streaming reduced to 512kbps speeds (lower resolution). The plan can be upgraded to HD video and unlimited Canada/Mexico for $25/month.
  • Unlimited LTE Advanced: Offers an unlimited T-Mobile data only plan on mobile hotspot for $79.99/month that includes full 4G/LTE hotspot use and HD video in the US only (no international use included)
  • T-Mobile Prepaid: Offers a prepaid 'One' unlimited plan for $75/month with unlimited 4G LTE data on device, and mobile hotspot data at 3G speeds.
  • Metro PCS: T-Mobile prepaid subsidiary offers an unlimited plan with 4G LTE data on device, and 8GB of mobile hotspot data for $60/month.

Sprint

Sprint LogoSmartphone Unlimited Plans

All of Sprint's data plans are technically unlimited. On their tiered data plans (those in which you purchase a bucket of data for each month), after the cap is reached, speeds are throttled for the rest of the billing period to 2G speeds.

Sprint also offers an unlimited smartphone data plan to consumers, an ability to add on an unlimited tablet plan to any line of service, and there are options for unlimited data plans lurking around.

  • Throttling & Network Management Policy: The plans are subject to network management after 23GB of usage in a month.
  • Mobile Hotspot & Tethering Policy: Sprint's 'Unlimited Freedom' data plans include 10 GB a month of mobile hotspot & tethering use. Their unlimited data plans prior to August 19, 2016 included only 3GB, and prior to February 17, 2017 they only included 5GB.
    • Beginning in November 2017, the carrier introduced the ability to add on a dedicate mobile broadband device (ie. hotspot) to Unlimited Freedom plans for $50/month. This includes unlimited 4G hotspot use subject to network management - however video streaming is throttled to 480p.
  • Video Resolution Throttled: All video streaming is at HD quality on smartphones and tablets.
  • Stand Alone Hotspot Line:
    • Sprint will allow you to activate an unlimited mobile broadband device (i.e.. hotspot) as a stand alone plan for $75/month - just $25 more than their add-on option.
Prepaid & Alternate Options:
  • Non-Profit Low Cost Unlimited 4G Plans: Due to terms of how Sprint purchased Clear a few years back, they inherited terms to provide unlimited data plans to non-profits. By joining non-profits like Calyx Institute (open to all) or PCsForPeople (low income qualified) you can get access to Sprint unlimited data plans for as low as $10/month.
  • Unlimitedville: Offers a rental unlimited data only plan (Yellow) for $99/month, that is not subject to throttling.
  • Boost Mobile: In February 2016, this reseller added mobile hotspot usage to all of their smartphone plans. Their unlimited smartphone plan includes 8GB/month of hotspot usage and is subject to network management after 23GB of usage a month.
  • Virgin Mobile: In March 2017, this Sprint's prepaid subsidiary added an unlimited plan option to their line-up. No hotspot usage is included in the base price, but 2G per month can be added for an additional $10/month.

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