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Select T-Mobile Accounts w/ Qualifying 2+ Line Plans: Get A New Line Expired

Free
+286 Deal Score
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T-Mobile.com offers Existing T-Mobile Customers on Eligible Plans with 2 Lines or More to add a New Line for Free (via monthly bill credits).

Thanks to community member coolchicagoguy for finding this deal.

What Do I Need To Do To Get This Offer?
  • This is a targeted offer from T-Mobile and is only open to select existing customers that meet the following requirement:
    • You must have a qualifying T-Mobile postpaid plan with 2 or more lines that falls under one of the following SOC Codes shown in this image (thanks to Reddit user Jman100_JCMP; see instructions below on how to find your SOC code).
      • SOC (Service Order Code) is the technical term used to describe plans and services that are added to customers' accounts within T-Mobile's billing systems.
    • If you are certain you qualify, login to your account below and:
    • Alternatively, you may call T-Mobile and a representative can assist you with adding your 3rd line.
      • If calling, promotion name is "2021 Line On Us P6".
Instructions to find your SOC code (thanks to Reddit user massiveprodigy):
  1. Using the Google Chrome web browser (desktop version), open the Developer tools panel on the right (Ctrl+Shift+I)
  2. Click on Network tab
  3. Click on XHR tab
  4. Log in my.t-Mobile.com and click Account at the top.
  5. In developer tools panel, choose manageaccount from the list on the left
  6. Account level promos will appear under accountDiscounts
  7. Line level features will appear under lines > # > addOns
  8. If there is a pending change, you can see exactly what it is by clicking productsPendingChange
  9. Rate plan appears under ratePlans
Can This Be Combined With Other Offers?
  • Can be combined with device offers on the same line.
  • Costco & T-Mobile rebate promos are NOT stackable with the free line.
Good Deal?

Original Post

Written by
Edited March 16, 2021 at 01:27 PM by
Free line requires 2+ existing lines. New customers or existing customers with one line have different requirements. Does NOT stack with Costco or T-Mobile rebates.

https://www.reddit.com/r/tmobile/...free_line/

From Reddit:
Customers on an eligible plan (list below) with 2 or more paid voice lines can add another voice line for free via monthly bill credits. Business plans are included. Customers must not already be at their rate plan's maximum number of lines. Business customers must have less than 12 lines to qualify.

You must maintain all the lines you have now + the free one for 12 months to keep the free line credits. After that, you must maintain at least 2 paid lines + this free line to keep the bill credits.

This promo will actively take priority over the current Third Line Free promo. This means new accounts adding 3 lines or existing accounts with 1 line adding 2 lines will receive this promo, not third line free, meaning they will not stack unless you already had third line free to begin with.

The free line stacks with phone promos currently available, as well as Carrier Freedom/Keep and Switch/Zero Cost to Switch. It does not stack with Costco or T-Mobile rebate promos.

BOGO for T-Mobile ends 3/16 - https://slickdeals.net/f/14878039-t-mobile-2021-buy-one-get-one-voice-add-a-line-for-existing-customers-ymmw

20% Hookup - https://www.reddit.com/r/tmobile/..._17th_for/ - This is YMMV for targeted Home Internet & Connected Device customers.

From Reddit:
Starting March 17th the Insider Hookup will return for existing T-Mobile customers that have Home Internet or Connected Devices with no voice lines.

This promo will allow you to port in from your existing carrier and get 20% off all voice lines for the lifetime of the account.

To clarify: The only people eligible for this upcoming Insider Hookup are Existing T-Mobile customers that do NOT already have voice lines at all. You must have Home Internet from T-Mobile or a connected device like a tablet or hotspot, but you can not already have voice lines.

QA note: YMMV https://www.t-mobile.com/offers/deals-hub
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Community Wiki

Last Edited by Jman100 March 23, 2021 at 08:46 AM
TODAY IS THE LAST DAY FOR THIS PROMO AS WELL AS THE IPHONE PROMOS.
If you are using a phone promo on the free line that requires a port in, you MUST complete the port in by end of day TODAY, March 23rd.

--------

T-Mobile has updated the SOC list again to revert it back to an earlier version. It now includes more SOCs. The SOC image in the main post has been updated. -- Jman100

--------

To find your SOC code for your rate plan, you can call CS 611 and ask, or figure it out yourself:
  1. Install the Chrome extension: https://chrome.google.com/webstor...ldjhocmmpl
  2. Add the Firefox extension: https://addons.mozilla.org/en-US/...mo-helper/
  3. Go old school and sift through the web code: https://www.reddit.com/r/tmobile/...soc_codes/
Maximum (Voice) Lines per SOC code:
SCFUTTBD: 10 lines

-------
Quote from ouloat :
For anyone looking to buy a iPhone 8 for the trade-in requirement for Tmobile's iPhone 12, the following are the different sources ranked from best to worst. Keep in mind the phone carrier doesn't matter for the trade-in, so it can be unlocked, AT&T, Verizon, T-mobile, anything. Phone must not have water damage, cracked screen, anything that could be perceived as a cracked screen, password lock, or icloud lock. Small dents, scratches, screen burn, and weak batteries are okay.

Trademore - iPhone 8 starting at $159 [trademore.com]
Folks in the Cricket iPhone SE thread been trading their iPhone SE's for $200 Paypal from Trademore, so we know they are legit. They are also the trade-in inspector one of the cell carriers (Verizon or AT&T), so doubt they will sell anything that doesn't pass inspection. They will probably be your safest bet to acquire a good quality trade-in. Shipping is included in the price.

Swappa - iPhone 8 starting at $158 [swappa.com]
Swappa's policy is no junk, so you are covered if you receive something you can't trade in. That said, since everyone is a third party, you get a wide variety of prices and conditions. I have received cracked screens before, but the seller took it back immediately. Still, this may cause you to lose this Tmobile promotion. Shipping is included in the price.

Local (Craigslist, Offerup, etc)
Your experience will vary, and the onus is on you to validate the phone is ready for trade-in. You might score with a great deal, or you might get ripped off. Only go this route if you know how to inspect phones or you need the phone the same day.

eBay [ebay.com]
You will have to read each listing very carefully, since there are listings for cracked, water damaged, icloud locked, or otherwise untradeable phones. Returns policies also vary by seller. Unless you score an amazing deal on ebay, Trademore or Swappa are safer options.

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Featured Comments

If you remove any paid lines within the first year, the free line loses the promo and becomes paid.

TMO doesn't want people doing what you're wanting to do.

To accomplish it, you would need to:

1. Add free line.
2. Wait a year + one day.
3. Port out paid line to another carrier.
4. Keep paid line active on another carrier for 90 days (to preserve number).
5. Port old number back in on free line.

This whole process has taken you 1.25 years. Peace
My port-in was initiated during T439 promo period and completed today outside of the promo period. Without the port in (with only the added line and traded-in) I was on a bad promo. Once the port-in completed today, the system auto updated to T439 promo in my account --> promotions. Therefore, I don't think it was a requirement the port-ins must be completed by 3/24 EOB, just as long as they are initiated.
YES, you can use this sim in your iPad. I pay for 2 lines and have 3 free lines on promotion (5 lines total)
I have 2 of my free lines in a iPad and a Samsung S4 tablet, with UNLIMITED data.
You have to call them and tell them you want to use the line (promo line) in a tablet but don't want to lose the promotion and you don't want to open a new line for this.
What they did for me, was block the phone service on the line and kept the messaging and data. That way I am able to use it in my tablet.
Every summer my daughter comes and visit from Germany. I take one of the sim card out of my tablet and put it in her phone..
I call T-Mobile and have them unblock the phone service. That way, my daughter has a phone while she is here in country.
When she leaves I call them back and get it blocked again. I have been doing this for close to 5 years. So I know for a fact it works.
Tomorrow I will be calling to try and get another free line.. (Fingers Crossed)
Hope this helps

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Joined Jul 2007
L10: Grand Master
> bubble2 6,421 Posts
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lou2004
05-26-2021 at 09:03 AM.
05-26-2021 at 09:03 AM.
Quote from GreenCreature437 :
No. As said they can cap it to 600Kbs when they detect that the voice sim is used in a data device.
use international unlocked device. it will say unknown device in your T-Mobile profile. you still get lte speed.
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Joined Jul 2013
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> bubble2 245 Posts
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HaroldLeec
05-26-2021 at 11:14 AM.
05-26-2021 at 11:14 AM.
Quote from Bigdreco :
YES, you can use this sim in your iPad. I pay for 2 lines and have 3 free lines on promotion (5 lines total)
I have 2 of my free lines in a iPad and a Samsung S4 tablet, with UNLIMITED data.
You have to call them and tell them you want to use the line (promo line) in a tablet but don't want to lose the promotion and you don't want to open a new line for this.
What they did for me, was block the phone service on the line and kept the messaging and data. That way I am able to use it in my tablet.
Every summer my daughter comes and visit from Germany. I take one of the sim card out of my tablet and put it in her phone..
I call T-Mobile and have them unblock the phone service. That way, my daughter has a phone while she is here in country.
When she leaves I call them back and get it blocked again. I have been doing this for close to 5 years. So I know for a fact it works.
Tomorrow I will be calling to try and get another free line.. (Fingers Crossed)
Hope this helps

And doing this you get unlimited lte data on the iPad?
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Joined Nov 2015
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> bubble2 956 Posts
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stevenSDer
06-08-2021 at 07:27 PM.
06-08-2021 at 07:27 PM.
Share my data points.
Added a new line in Costco on 3/18 with BYOD and ported in a number. Got a free line promo text message at the same day when the number got ported in successfully. Also got a $150 Costco Cash Card rebate form and submitted it online.
On 3/23, upgraded this free line to iPhone 12 with a iPhone 8 as trade it. Got "2021 Apple Switch Trade P1 - T439" promo after iPhone 12 was shipped.
On 6/2, $150 Costco Cash Card was issued and got it on 6/8.
Both free line promo and device promo T439 are still active after 3 billing cycles.

Costco Cash Card rebate CAN stack with T-Mobile promos.
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Joined Jul 2007
L3: Novice
> bubble2 112 Posts
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yourdeals
06-28-2021 at 02:55 PM.
06-28-2021 at 02:55 PM.
So looks like no free line for this quarter.
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Joined Oct 2015
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> bubble2 711 Posts
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fishweb.p
09-25-2021 at 09:47 AM.
09-25-2021 at 09:47 AM.
has anyone tried to cancel any paid lines yet after getting free lines? some people are saying it is 90 days after getting a free line to cancel a paid line and some people are saying it is 1 year.
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Joined Jan 2015
L4: Apprentice
> bubble2 463 Posts
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o4s
09-25-2021 at 01:51 PM.
09-25-2021 at 01:51 PM.
Quote from fishweb.p :
has anyone tried to cancel any paid lines yet after getting free lines? some people are saying it is 90 days after getting a free line to cancel a paid line and some people are saying it is 1 year.

it is 1 year
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Joined Aug 2011
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> bubble2 1,265 Posts
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TWG2012
09-25-2021 at 02:35 PM.
09-25-2021 at 02:35 PM.
I called T-mobile today and they mentioned a add a line get a line free, but I didn't get any more details...can anyone else confirm this is the case?
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Joined Dec 2008
L3: Novice
> bubble2 191 Posts
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mesajoejoe
03-22-2022 at 03:44 PM.
03-22-2022 at 03:44 PM.
1 year has finally arrived! Anyone converted 2x paid for LOU4 and LOU6 yet?
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Joined Mar 2005
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> bubble2 564 Posts
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Bravo
05-02-2022 at 02:03 PM.
05-02-2022 at 02:03 PM.
Has anyone cancelled a paid line after one year adding this LOU 6?
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Joined Dec 2010
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> bubble2 34 Posts
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jeffyor
06-17-2022 at 10:23 AM.
06-17-2022 at 10:23 AM.
I have a free 20% off for life coupon if anyone wants to use it. This applies the Magenta Max plan

Use this code when signing up and you get 20% off for the life of your account on the plan. This may be a single-use code, so it's first come first serve.

Share your exclusive code:
LJQTNXMN
Expires 08 /24 /2022
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Joined Nov 2018
dealUnlocked
> bubble2 2,178 Posts
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dealUnlocked
12-22-2022 at 02:35 PM.
12-22-2022 at 02:35 PM.
Anyone has any life time coupon?
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