Important Message Regarding Verizon & Triangle Mobile

Important Message Regarding Triangle Mobile & Verizon

Triangle Mobile and Verizon have entered into an agreement that will allow Verizon to purchase the LTE in Rural America (LRA) assets from Triangle Mobile. Due to the substantial build-out that Triangle has completed, Verizon will acquire Triangle Mobiles current coverage area. This transaction is expected to close mid-year 2021.
This announcement does not affect any current Triangle Telephone Cooperative member’s landline or Internet service. Our members whose homes are served by fixed wireless Internet will also continue to receive their Internet service through our fixed wireless offering. This announcement only affects customers using our mobile cell service.
All customers who are affected by this sale will receive a letter in the mail with this announcement as well as additional communication as more information is available.
Please visit our website to keep up to date on the latest information available.
Craig Gates, CEO stated, “Triangle Communications is committed to continuing to invest in providing reliable phone and high-speed Internet to our 12,000 plus valued members across our 24,000 square mile service area. The sale of our LRA assets completes a project started by Triangle Mobile and has ensured that cellular service was brought to the Hi-Line. Now, Verizon can continue to provide that service to the Hi-Line and bring new and exciting services to the area. “

Frequently Asked Questions

  • What actions do I need to take now?

    Triangle Mobile customers will have until December 15th to transition their lines to the carrier of their choice.

  • Am I being moved to Verizon as a customer?

    No, you will NOT be moved to Verizon as a customer.  

  • Will this affect my landline or internet service provided by Triangle Communications?

    This will not affect any landline, copper, fiber or fixed wireless internet provided by Triangle Communications. This change only affects mobile cell phones and hot spots purchased through Triangle Mobile.

  • Will my bill still come from Triangle Mobile?

    Yes, your bill will still come from Triangle until you transition to the carrier of your choice.  

  • What does this mean for coverage?

    If you switch to Verizon, your coverage area should not be affected. We currently operate on the same network for our LTE. Coverage areas may vary if you choose to switch to another provider. Verizon will be responsible for all of Triangle Mobiles LRA/CDMA equipment on the towers that provides Triangle’s existing mobile services.    

  • Will my current cell phone work with another carrier?

    The ability to take your current device to a new carrier will depend on requirements and restrictions set by your new carrier.  Customers will need to check with their new provider on ability to retain existing devices.

    Verizon has provided the following link to determine if your current phone will transfer to Verizon.  For the question, “Where did you purchase this device?”, please select “Other”.

  • Will there be any promotions from Triangle Mobile to help me move to another carrier?

    Triangle Mobile will be providing a $50 credit on your bill per mobile line at the time of transitioning to a new carrier.

  • What companies offer mobile cell service in our area?

    There are many mobile service providers in our area. The pricing and coverage vary by company. Triangle Mobile recommends you check out the different companies to see which plans and coverage areas meets your needs best. Here are a few you can check out.

    Verizon – Prepay & Post-Pay Options: 1-800-922-0204
    AT&T – Prepay 800-901-9878 - Post-Pay Options 800-722-3481
    T-Mobile – Prepay & Post-Pay Options: 1-800-937-8997
    Spectrum Mobile – Prepay 833-224-6603 - Post-Pay Options 833-267-6094
    Straight Talk – Prepay Option 877-430-2355
    Tracfone – Prepay Option 800-867-7183

  • How can I stay up to date with announcements?

    Check out our website at for the most up to date information. 

Read more: Important Message Regarding Verizon & Triangle Mobile



In light of the recent global pandemic declared by the World Health Organization; Triangle Communications (Triangle) is transitioning to social distancing of its employees. Starting Tuesday, March 24, our doors will be closed to the public for the foreseeable future. Once the pandemic is under control here in Montana as defined by the State of Montana and CDC, we will open our doors again to the public without a scheduled appointment. Triangle has begun to reduce employee density in the workplace by instituting telecommuting where possible and creating more space between workstations for those that will still be reporting to our facilities.

As an essential services company, it is our top priority to continue supporting our members.  

How does this impact you?

  1. When you contact our customer service or technology support teams, you will continue to receive the same friendly and expert level of support you expect.
  2. When you contact any of our employees who are working remotely, we will continue to respond as if we were in the office.
  3. Be prepared to answer questions about your health and the health of those in your home. Please be considerate of the employee asking the questions, as they are doing so at my direction. They are doing so for your protection and for the protection of our employees.
  4. In person assistance to our members from office staff is available by appointment only. Please call 1-800-332-1201 between 8am - 5pm to schedule an appointment.
  5. Our technicians that visit your home to install or repair service have been provided with best practices, personal protective equipment and disinfectant to keep both you and them safe.
  6. If you need to pay your bill in person, Independence Bank in Havre is accepting Cash & Check payments. Be sure to have your account number or payment stub with you as it will be required to make a payment at the bank.
  7. You can still mail your payment in as long as the post office is open. In Havre, our drop box will be accessible to all members as well.
  8. You can also use our website , to make a payment with a credit card, checking/savings account or call us to set up automatic payments.

Have questions about your account or technical support about your service?

  1. Phone: 1-800-332-1201
  2. Account Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
  3. Tech Support Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

We appreciate your understanding and support as we navigate this quickly changing situation and please stay safe and healthy.


Craig Gates

Triangle Mobile past phone offerings

Triangle Mobile past phone offerings

 Handset Maker Handset Model Number FCC ID HAC Ratings Dates Carried
Samsung SM-A115U1 (A11) ZCASMA115U M4/T3  08/20 - 12/21
Samsung SM-G97OU1 (S10e) A3LSMG97OU M4/T3 10/19 - 12/21
Samsung SM-G973U1 (S10) A3LSMG973U M4/T3 3/20 - 12/21
Samsung SM-G975U1 (S10+) A3LSMG975U M4/T3 2/20 - 12/21
Samsung SM-G981U1 (S20) A3LSMG981U M4/T3 4/20 - 12/21
Samsung SM-G986U1 (S20+) A3LSMG986U M4/T3 4/20 - 12/21
Samsung SM-G988U1 (S20 Ultra) A3LSMG988U M4/T3 4/20 - 12/21
Samsung SM-N986U1 (Note 20 Ultra) A3LSMN986U M4/T3 11/20 - 12/21
Apple MWL82LL/A (iPhone 11 64GB) BGC-E3309A M4/T3 10/19 - 12/21


MWLF2LL/A (iPhone 11 128GB) BGC-E3309A M4/T3 10/19 - 12/21
Apple MWCJ2LL/A (iPhone Pro 64GB) BGC-E3305A M4/T3 10/19 - 12/21
Apple MWHO2LL/A (iPhone Pro Max) BGC-E3306A M4/T3 10/19 - 12/21
Apple MG8M3LL/A (iPhone 12 Mini) BGC-E3539A M4/T3 11/20 - 12/21
Apple MGHC3LL/A (iPhone 12) BGC-E3542A M4/T3 10/20 - 12/21
Apple MGLT3LL/A (iPhone 12 Pro) BGC-E3545A M4/T3 10/20 - 12/21
Apple MGCK3LL/A (iPhone Pro Max) BGC-E3548A M4/T3 11/20 - 12/21
Apple MXCW2LL/A (iPhone SE) BGC-E3501A M4/T3 4/20 - 12/21
Samsung SM-A102UZKAXAG (A10e) A3LSMA102U M3/T3 12/1/19 to 9/1/20 
Samsung SMN960U1ZKAG (Note 9) A3LSMN960U M4 & T3 1/1/19 to 8/19/20
Apple A1984 (XR) BCG-E3220A M3 & T4 1/1/19 to 8/19/20
Apple A1921 (XS MAXX) BCG-E3219A M3 & T4 1/1/19 to 8/19/20
Apple A1920 (XS) BCG-E3218A M3 & T4 1/1/19 to 8/19/20
Apple A1864 (8plus) BCG-E3160A M3 & T4 1/1/19 to 8/19/20
Apple A11660 (iPhone 7) BCG-E3085A M3 & T4 1/1/19 to 8/19/20
Samsung SMG960U1ZKAG(S9) A3LSMG960U M4 & T3 1/1/19 to 6/1/20
Samsung SMG950UZKAL ( S8) A3LSMG950U M4 & T3 1/1/19 to 6/1/20
Apple A1863 (8) BCG-E3159A M3 & T4 1/1/19 to 4/20/20
 LG G5  ZNFVS987  M3 & T3  1/1/19 to 7/22/2019
 Apple  A1634 (I Phone 6s Plus)  BCG-E2944A  M3 & T4  1/1/19 to  6/7/2019
Samsung SMN950U1VKAX (Note 8) A3LSMN950U M4 & T3 1/1/19 to 6/1/19
 Apple  A1661 (iPhone 7 Plus)  BCG-E3087A  M3 & T4  1/1/19 to  5/25/2019
 Apple  A1864 (8plus)  BCG-E3160A  M3 & T4  1/1/18 to  12/13/2018
Apple A1863 (8) BCG-E3159A M3 & T4 1/1/18 to 12/31/18
 Apple  A1865 (X)  BCG-E3161A  M3 & T4  1/1/19 to 7/8/2019
Samsung SMG960U1ZKAG(S9) A3LSMG960U M4 & T3 4/15/18 to 12/31/18
 Samsung  SMG965U1ZKAG (S9 Plus)  A3LSMG965U  M3 & T4  1/1/19 to 7/25/2019
 Franklin  MHS700L (WiMATE)  XHG-R700  N/A  1/1/18 to 12/31/2018
Samsung SMN950U1VKAX (Note 8) A3LSMN950U M4 & T3 1/1/18 to 12/31/18
LG Fluid II (AN170) ZNFVN170 M4 & T4 1/1/18 to 12/31/18
LG  K8 ZNFVS500 M3 & T3 1/1/18 to 2/15/18
 NOVATEL  MIFI  PKRNVSMIFI6620  N/A  1/1/18 to 2/15/18
 Apple  A1662 (iPhone SE)  BCG-E2945A  M3 & T4  1/1/18 to 11/30/18
 Apple  A1633 (iPhone 6s)  BCG-E2946A  M3 & T4  1/1/18 to 11/30/18
Samsung SMG950UZKAL (S8) A3LSMG950U M4 & T3 1/1/18 to 12/31/18
 Samsung  SMG955UZKAL (S8 Plus)  A3LSMG955U  M3 &T3  1/1/18 to 12/13/18
 NOVATEL  MIFI5510  PKRNVWMIFI5510  N/A  1/1/18 to 2/15/18
 NOVATEL  MIFI7730L (SSW2783)  PKRNVWMIFI7000  N/A  10/01/18 to 12/31/18
 Samsung  SMG920 (Galaxy S6)  A3LSMG920R7  M4 & T3  1/1/17 to 11/27/17
 Samsung  SMG360R6 (Core Prime)  A3LSMG360V  M3 & T4  1/1/17 to 12/19/17
 Samsung  Galaxy S7  A3LSMG930US  M4 & T3  1/1/17 to 11/27/17
SM-A115U1 (A11)

Updated 9/22/2020

Read more: Triangle Mobile past phone offerings


Frequently Asked Questions

  • How do I access my Account?

    You can access your account via the My Account link or through the SmartHub® app.

  • Does Triangle offer paperless billing?

    Yes. You can manage this setting in My Account or through the SmartHub® app.
  • Can I add features later if I don't choose them now?

    Yes, you can contact our customer support team or visit your local Triangle Mobile store to make changes to your account at any time.
  • If I am eligible, can I upgrade my device online?

    Unfortunately not, please visit your local Triangle Mobile store to upgrade your device.
  • How do I move my information from one device to another?

    Feel free to visit your local Triangle Mobile store for details and assistance with transferring your information to a new device.
  • How do I switch to Triangle Mobile?

    The process is simple and easy. Visit your local Triangle Mobile store today to switch!
  • Can I buy from Triangle if I don't live on the Hi-Line?

    While we provide nationwide coverage, at this time we only serve customers from Liberty, Hill, Blaine and Phillips County. 

  • Can I use my device as a mobile hotspot?

    It depends on the model of your phone but most 4G devices can be used as a mobile hotspot.

  • Can I keep my number when I switch to Triangle?

    If you have a (406) number then in most cases, yes! Please visit us to confirm.
  • What do I need to keep my same number?

    A copy of your last bill from your current provider and your pin number with them.

Switch to Triangle Mobile today!


Read more: FAQs

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