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Email to SMS gateway list: every US carrier address and its status

This email to SMS gateway list shows each US carrier's address format and whether it still delivers in October 2026. Find the old gateway address in your alarm system, replace it with one Welco address, and the alarm reaches the phone again. AT&T's and T-Mobile's gateways have stopped, and Verizon's closes by March 31, 2027.

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  • Copy the domain list
  • One address replaces them all
  • Any US or Canada carrier

Replaces email-to-text from

  • Verizon
  • AT&T
  • T-Mobile
  • US Cellular

Published:

Branch UPS emails 5551234567@mms.att.net; the AT&T gateway replies 250 OK but drops it, so no text arrives. The same alert sent to branch-ups@welco.ai goes through Welco to the phone. The email reaches Welco and the phone shows: “Welco: [Branch 6] UPS on battery, 31 min left at 5:12 AM. Reply STOP to opt out.”

Animation: the old carrier address 5551234567@mms.att.net is replaced with the Welco address branch-ups@welco.ai, and alerts arrive again.
  • The format is the 10-digit mobile number, then @, then the carrier's domain, such as 5551234567@vtext.com.
  • Ended: AT&T on June 17, 2025, and Sprint in 2022. T-Mobile reportedly stopped around December 2024.
  • Closing: Verizon, complete by March 31, 2027.
  • Reported working in 2026: US Cellular, Google Fi and Boost Mobile. None has promised to stay open.

US carrier email-to-SMS addresses and status

Replace number with the 10-digit mobile number. Status reflects the sources below as read on October 5, 2026. Background is in our guide to the gateway shutdown.

US carrier email-to-SMS gateway addresses, checked October 5, 2026

AT&T

Text address
number@txt.att.net
Picture address
number@mms.att.net
Status
Ended June 17, 2025
Basis
Official notice

Cricket Wireless

Text address
number@sms.cricketwireless.net
Picture address
number@mms.cricketwireless.net
Status
Ended with AT&T
Basis
Reported

Verizon

Text address
number@vtext.com
Picture address
number@vzwpix.com
Status
Closing, done by March 31, 2027
Basis
Official notice

T-Mobile and Metro

Text address
number@tmomail.net
Picture address
Not in our sources
Status
Stopped around December 2024
Basis
Reported

US Cellular

Text address
number@email.uscc.net
Picture address
number@mms.uscc.net
Status
Delivering in 2026
Basis
Reported

Sprint

Text address
number@messaging.sprintpcs.com
Picture address
Not in our sources
Status
Ended in 2022
Basis
Reported

Google Fi

Text address
number@msg.fi.google.com
Picture address
Not in our sources
Status
Working for now, mid-2026
Basis
Reported

Boost Mobile

Text address
number@sms.myboostmobile.com
Picture address
Not in our sources
Status
Working in 2026
Basis
Reported

Sources: AT&T support article KM1061254 (read Oct 5, 2026); Verizon support: vtext and vzwpix shutdown (read Oct 5, 2026); NVRtxt: email-to-text shutdown (read Oct 5, 2026); SigSpan: T-Mobile email-to-text gateway (read Oct 5, 2026); SigSpan: US Cellular email-to-text gateway (read Oct 5, 2026); EmailToTxt: carrier status (read Oct 5, 2026)

What changes when the list is gone

  • One address in every system

    Your Welco address replaces every number@carrier line, whichever carrier each person uses.

  • Phone changes stop breaking alarms

    When someone switches carrier or leaves, you update Welco once. No system needs editing.

  • Proof each text arrived

    A delivery report replaces guesswork, so a dropped text no longer hides behind a sent log.

How the email-to-SMS address format works

Each address is the phone's 10-digit number with no spaces, dashes or leading 1. After the @ comes the carrier's gateway domain. The carrier's mail server turned the email into a text for that number.

Because the domain belongs to a carrier, the address only works while that person stays on that carrier. It also stops the day the carrier closes its gateway. Our glossary entry on email-to-SMS gateways explains the idea in more depth.

Domains to search for in your systems

Copy this list and search each alarm system's contacts, users and notification settings for any line on it.

Carrier gateway domains
txt.att.net
mms.att.net
sms.cricketwireless.net
mms.cricketwireless.net
vtext.com
vzwpix.com
tmomail.net
email.uscc.net
mms.uscc.net
messaging.sprintpcs.com
msg.fi.google.com
sms.myboostmobile.com

Is my alarm on a gateway from this list?

  1. 1.Did your search find any of these domains in an alarm, monitor or logger?
  2. 2.Does a mail group or shared contact used for alarms include one of these addresses?
  3. 3.Does an old dialer or panel keep its own phone list that you haven't opened in a year?

Answer the 3 questions to see your result.

Replace a gateway address in 15 minutes

This is the short version. For a whole site, use the alarm migration checklist.

  1. Search with the domain list

    Note each system, each gateway address and the person whose phone it reaches.

  2. Set up Welco and invite each person

    Sign up with your work email and verify your business, then email an invite to each person you noted. They join with their own mobile number and reply YES once.

  3. Swap all the gateway addresses for one Welco address

    Approve the system as a sender in Welco, then put your Welco address where the carrier addresses were.

  4. Test and confirm delivery

    Send a test alarm and check the delivery report for each phone.

Retire every address on this list

One Welco address texts any US or Canada mobile number, on any carrier.

7-day free trial, 15 message creditsCard required for verificationNo charge for 7 daysEmail reminder before billing

Get my alarm texts working againBook a demo

A UPS alert sent to an AT&T picture address

A branch office UPS used to email an mms.att.net address. That path closed in June 2025. Through Welco, the IT lead now gets this.

Alert email from powerchute@branch2.example.com, subject “PowerChute event: UPS On Battery”. Welco trims it to one text of 90 characters: “Welco: [Branch 2 UPS] On battery, 21 min runtime left at 7:52 PM. Reply STOP to opt out.”

Text received: Welco: [Branch 2 UPS] On battery, 21 min runtime left at 7:52 PM. Reply STOP to opt out.

Characters227901 credit

Animation: the alert email "PowerChute event: UPS On Battery" is trimmed into one text: "Welco: [Branch 2 UPS] On battery, 21 min runtime left at 7:52 PM. Reply STOP to opt out."

See the full setup for APC UPS SMS alerts.

Frequently asked questions

What is the email to SMS format for a phone number?

Use the 10-digit mobile number with no spaces, dashes or country code, then @, then the carrier's domain. A Verizon number looked like 5551234567@vtext.com. Several of these domains no longer deliver, so check the status column before using one.

Which carriers still support email to text?

As of October 2026, US Cellular email to text, Google Fi and Boost Mobile were reported still delivering. Verizon's gateway works for some senders until it closes by March 31, 2027. AT&T, Cricket, Sprint and T-Mobile have stopped. None of the working ones has promised to stay open.

Why are some carriers marked as reported?

Only AT&T and Verizon published official notices that we could read. For T-Mobile, US Cellular, Sprint, Google Fi and Boost, the status comes from services that test gateways, such as SigSpan, NVRtxt and EmailToTxt. We link those sources so you can check them.

The gateways were free. What does one Welco address cost?

Welco has plans built on monthly message credits, with no per-user fees and no setup fee. A short alarm uses one credit on any carrier. The 7-day free trial includes 15 credits, and the pricing page lists the plans.

How current is this gateway list?

The updated date on this page shows when we last read the sources. Carriers have changed gateways with little or no notice, so check that date before relying on any row. A test alarm to a real phone is still the best check.

Is there one email address that texts any carrier?

Not from the carriers. Each gateway only reached its own customers. A Welco address does that job. Your system emails it once, and Welco texts everyone who joined and replied YES, on any US or Canada carrier.

Replace every gateway address with one

Your systems email Welco, and Welco texts the right phones. Look at plans or start free.

Get my alarm texts working againBook a demo

7-day free trial, 15 message creditsCard required for verificationNo charge for 7 daysEmail reminder before billing