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

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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.

Thanks to community member Jman100 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 (see instructions below on how to find your SOC code).
      • SOC (Service Order Code): 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 "2020 Line On Us 4".
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?
  • This deal CANNOT be combined with any of the following current T-Mobile promotional offers:
    • iPhone 12 "on us" (2020 Apple Trade Activate P3)
    • BOGO iPhone (2020 Apple Buy 2 P11)
    • Free Galaxy A71 5G with new line (2020 Samsung Activate P12)
    • Free OnePlus 8/8T+ 5G with new line (2020 OnePlus Activate P5)
    • Costco BYOD promos
    • TFB-exclusive promos
  • By participating in any of these offers above while using your new free line, you will forfeit the free line terms and will have to pay for that line.
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Original Post

Written by
Edited December 20, 2020 at 03:25 PM by
Starting December 20th customers on an eligible plan with at least 2 paid lines can add a line for free.


Eligible SOC list: https://i.imgur.com/LZegl3r.jpg

Please note: There's a lot of misinformation and confusion around this promo. Inevitable when a promo like this happens half a month after an identical one just ended. Here are some critical nuggets of info:
  • The promo is called "2020 Line On Us 4"
  • It is fully stackable with "2020 Line On Us 3"
  • Internal docs mention a scenario where it isn't stackable. It is referring to "third line free" promos and only to accounts opened on the 20th or later. This appears to be causing confusion.
  • The promo seems to be showing on accounts as line on us 3 (double if you already had it). It's a known issue and being worked on. Will not affect eligibility.

Offer now available. Some reps are not yet aware of the promo's existence, so please be patient with them. You can also add the line as normal online and the promo will automatically apply within a bill cycle.

Ineligible stackable promos:
  • iPhone 12 "on us" (2020 Apple Trade Activate P3)
  • BOGO iPhone (2020 Apple Buy 2 P11)
  • Free Galaxy A71 5G with new line (2020 Samsung Activate P12)
  • Free OnePlus 8/8T+ 5G with new line (2020 OnePlus Activate P5)
  • Costco BYOD promos
  • TFB-exclusive promos

(PS: check this post here https://www.reddit.com/r/tmobile/..._your_soc/ to get a Chrome or Firefox extension that will make finding your SOC easy, or see the guide here https://reddit.com/r/tmobile/comm...soc_codes/ to find it manually)

Disclaimer: This is info based on leaked documents, and is subject to change. Any noticed changes will be added to this post when learned.

https://t-mobile.com
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Free

Community Wiki

Last Edited by HurricaneAlley January 6, 2021 at 09:05 PM
DEAD
Promotion ENDED 12/31/2020
DEAD

Free Line CAN be stacked with these New Line offers
1) iPhone SE 50% off
2) REVVL 50% off
3) Pixel 4a 5G 50% off
4) Costco Free A11 + $100 for new Lines ( NOT BYOD)

(Not 100% if works, but not listed on Ineligible list)
5) S20FE BOGO Free
6) Samsung BOGO $1000 off or Costco $810 off


20% Hookup codes:

EMPFNBM = Tmo 1 for older plans
NTMEMP20= New TMO Insider Voice 20% for Magenta

-----------------------------------------------------
PSA: COSTCO BYOD IS NOT STACKABLE!
They specifically call this out in the docs this time.

-----------------------------------------------------
Browser extensions to find your SOC easier
Chrome: https://chrome.google.com/webstor...ldjhocmmpl
Firefox: https://addons.mozilla.org/en-US/...mo-helper/

-----------------------------------------------------
t-mobile soc:
1. How to find:
https://www.reddit.com/r/tmobile/...soc_codes/
2. List of soc codes:
https://docs.google.com/spreadshe...1340439917


If your promo isn't working under your account properly try this (worked for me):
https://slickdeals.net/forums/showpost.php?p=143239985&postcount=899


Still on TMO ONE All In Promo plan (FRLTUL2LP) which is never eligible for free lines?

This is a great (grandfathered) plan as it gives you 2 lines for $100 or $80 after 2GB data limit kickback on the 2 lines (or even less if you have the plan with T-Mobile employee hookup code). Plus with the additional promotion you get HD streaming, 10GB full speed hotspot and twice the international data speed (256kbs instead of 128kbs).

BUT... this account only supports 3 lines and unless you got the one free line they offered once under this plan you never got and will never get a free line with the plan.

But if the plan works out for you can move to another T-Mobile One plan (FRLTULF2) which cost a little bit more (2 lines for $120 or $100 after kickbacks) but you will be eligible for the free line and hopefully for additional free lines in the future (the plan supports up to 8 lines in total). The reps are also be able to move the kickback and ONE Plus promotion to the new plan. They might not do it immediately for the new free line but this is also possible and might need another try.
Plus the new plan includes $10.99 Netflix Standard HD account contribution which also needs to be factored in as a bonus.

If you want to get out of that hole and make the change here is my conversation regarding the plan change with T-Force on Twitter:
https://slickdeals.net/f/14713250-t-mobile-customers-add-a-line-for-free-starting-december-20th?p=144023981#post144023981

Then I called 611 at night and asked the overseas team to also add the promo add-ons to new free line so that all lines on the account have the ONE Plus promo (no kickback on the free line of course):
https://slickdeals.net/f/14713250-t-mobile-customers-add-a-line-for-free-starting-december-20th?p=144031265#post144031265

Summary of the process and overview of changes:
https://slickdeals.net/f/14713250-t-mobile-customers-add-a-line-for-free-starting-december-20th?p=144039584#post144039584

As I wrote it needs some time and the right reps to make it happen as I struggled with reps in the past to switch to a different T-Mobile One plan and not ending up with a Magenta plan and losing the kickback and One Plus promotion.
Good luck!

-----------------------------------------------------
Regarding costs to add new line

If you add the line via the website, youll pay $10 for the SIM card to be shipped to you.
If you add the line via a phone call, youll pay the $10 SIM card charge and also $20 for assisted set-up. It is relatively easy to get both of these comped.
If you have a spare sim-card or eSIM, you can use that instead of paying $10 for a new one (bear in mind that it may not be able to do SA 5G). You will need to call since the website does not allow re-use of old cards. (You can also do this via online chat support lines like in-app chat and t-force on twitter)
Expired cards do work, but you have to request a replacement. Again, no SA 5G.
If you have a Costco near you, they will give you the sim card and activate for you for free. You also may get the YMMV $100 cash card (but so far the jury is out if it actually will go through)


-----------------------------------------------------------
This post can be edited by most users to provide up-to-date information about developments of this thread based on user responses, and user findings. Feel free to add, change or remove information shown here as it becomes available. This includes new coupons, rebates, ideas, thread summary, and similar items.



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Questions & Answers BETA
goto3511 asked this question on 12-19-2020 at 07:11 PM
12-20-2020 at 08:09 AM
Most of the time, Senior plan, First Response and Military Plan always excluded.
12-20-2020 at 10:00 AM
Just worked for me on my military plan.
12-20-2020 at 10:11 AM
My agent told me my military plan is not qualified.
12-20-2020 at 05:26 PM
T-Mobile ONE Military plan here, not eligible for this promotion according to the dude on the 611 line
12-21-2020 at 08:37 AM
Military plans all have different SOCs. Please refer to the instructions above to determine that.
Karkos asked this question on 12-19-2020 at 02:52 PM
12-19-2020 at 03:46 PM
There's no catch, once they have you signed up with a bunch of free numbers though it'll make it very hard to leave them.
12-19-2020 at 07:19 PM
The only catch is if you don't have a Taxes Included plan. You would then pay taxes on the new line.
12-20-2020 at 10:52 AM
This will also be a win for T-Mobile because from a marketing and advertising standpoint they can say that they’ve added “x” number of lines for the past quarter/year.
Joelioli asked this question on 12-19-2020 at 07:48 PM
12-19-2020 at 08:19 PM
Generally after 1 year you can. You would still have to likely maintain 2 lines to keep the free line.
12-21-2020 at 09:49 AM
How to know which line is a free line?
12-23-2020 at 04:23 AM
I removed a paid line in May. Added a free line in June or so. Also removed a paid line 2 days ago and added a free line several hours later the same day. I’m still waiting to see if this particular promo will show up on my account.
chils asked this question on 12-19-2020 at 08:06 PM
12-20-2020 at 09:40 AM
Most likely not since it wasn't last time. I had to switch to MAGENTA2 to get it.
12-21-2020 at 09:23 AM
I was told by the chat rep that Magenta Amplified plan customers are eligible for this promo as well. Try again and post your finding.
12-22-2020 at 11:34 AM
I'm on MGAMP2 and was told by chat rep that it's not eligible.
paullu95 asked this question on 12-19-2020 at 05:08 PM
12-20-2020 at 07:24 AM
I just did an on-line chat with T-Mobile and was told that the Magenta 55+ plans are limited to 2 lines and therefore are not included in the free line promotion. If anyone gets a different answer, please post!
12-20-2020 at 10:14 AM
Agent said regular magenta and magenta plus are qualified.
DealJugaad asked this question on 12-19-2020 at 03:54 PM
12-20-2020 at 07:16 AM
Eligible SOC list: https://i.imgur.com/LZegl3r.jpg

4,220 Comments

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This comment has been rated as unhelpful by Slickdeals users
Joined Nov 2006
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#76
Quote from Nerd_Baller1 :
I'm guessing military plans are ineligible?
Always and forever. I almost didn't even open this thread because I already knew.
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#77
Quote from Scoreracing :
Is there any downside to adding more lines besides the extra taxes and regulatory fees for the line each month, which is a few dollars extra per line?
No downside, except you may be tempted to play Santa and give away free service to your friends and family. Be sure you turn off 'SMS payment' just in case.
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#78
Quote from Siwy12 :
What about Sprint SERO folks?
I don't think we Sprint adoptees ever qualify for these T-mobile free lines. I went from SERO to SWAC years ago and did get 1 free line from Sprint before they merged with TMobile
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#79
Quote from Scoreracing :
Is there any downside to adding more lines besides the extra taxes and regulatory fees for the line each month, which is a few dollars extra per line?
Mo lines no problems
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#80
Quote from dinc44 :
I have 4 lines on my plan that I pay for. I have added 3 free lines from their offers in the last 9 months. This is insane. And awesome. I hope I'm eligible to add one tomorrow.
💪💪💪💪💪💪💪
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Joined Nov 2011
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#81
I did this deal last time it went on and it has been a nightmare...seems like I have to call in every other month to get my bill fixed because they start charging me for the "free" line.
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#82
I just got a free line a few weeks ago. Can I get another one free now?
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Joined Dec 2015
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#83
Quote from FaithfulPolice189 :
I'm on the same boat with you. Hope I can get the 4th too.
I have 4 lines in my plan too and 4 extra free lines, I hope I can get this one too 🤞🏽
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#84
Simple choice plan eligible for this offer?
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#85
Sweet! I'm for a 4th free line. Currently pay $128 for 8 Magenta lines. Thanks OP!
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Joined Jun 2011
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#86
I called last time with agent telling me that was no free line. I went to the store and got one. Do I have to go to store? Or something (web link) I can show the agent to get that free line (and save me a trip to the store?)
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#87
how are people using free line if everyone in family has a line already?
will T-Mobile allow moving a paid line number over to free line after a year?
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#88
Quote from lintas1 :
Another useless promo from a big bad telephone company. Who GAF abt adding a line
I know. They seem to forget the world revolves around you. Stupid T-mo
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#89
Quote from lawrnk :
I have that 20 percent hookup for life. Stackable?
Yeah, you get 20% off a free line. So it's still free.
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#90
I have 3 free lines from this year itself. I've no use for a landline and since I can't port a number in and claim it, friends/family aren't keen on it either.
Any creative suggestions on what I can do with them?
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