SMS Delivery Delay to Small US Carriers Using a Subset of Shortcodes

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages using a subset of shortcodes to small US carriers:. This incident has been resolved.

Posted May 24, 2021 - 12:39 PDT

Update

We are observing recovery in SMS delivery delays when sending messages using a subset of shortcodes to small US carriers:
Union Telephone USA
West Central Wireless USA
Bluegrass Cellular USA
Carolina West Wireless USA
Rural Independent Network Alliance (RINA) USA
Illinois Valley Cellular USA
Inland Cellular USA
Nex Tech Communications USA
CellCom USA
Alaska Communications Systems (ACS) USA
GCI Communications USA
Thumb Cellular USA
Cross Wireless USA
Chat Mobility USA
Northwest Missouri Cellular USA
Panhandle Wireless USA
Viaero Wireless USA
MTPCS Cellular One (Cellone Nation) USA
Duet Wireless USA
SouthernLINC USA
Standing Rock Telecom USA
SRT Communications USA
Copper Valley Telecom USA
ASTAC USA
Cordova USA
Pine Belt USA
James Valley Cellular USA

We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

Posted May 24, 2021 - 10:45 PDT

Update

Posted May 24, 2021 - 08:45 PDT

Update

Posted May 24, 2021 - 06:45 PDT

Update

Posted May 24, 2021 - 04:45 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages using a subset of shortcodes to small US carriers:
Union Telephone USA
West Central Wireless USA
Bluegrass Cellular USA
Carolina West Wireless USA
Rural Independent Network Alliance (RINA) USA
Illinois Valley Cellular USA
Inland Cellular USA
Nex Tech Communications USA
CellCom USA
Alaska Communications Systems (ACS) USA
GCI Communications USA
Thumb Cellular USA
Cross Wireless USA
Chat Mobility USA
Northwest Missouri Cellular USA
Panhandle Wireless USA
Viaero Wireless USA
MTPCS Cellular One (Cellone Nation) USA
Duet Wireless USA
SouthernLINC USA
Standing Rock Telecom USA
SRT Communications USA
Copper Valley Telecom USA
ASTAC USA
Cordova USA
Pine Belt USA
James Valley Cellular USA

We will continue monitoring the service to ensure a full recovery. We will provide another update in 30 minutes or as soon as more information becomes available.

Posted May 24, 2021 - 04:22 PDT

Update

We are continuing to experience SMS delivery delays when sending messages using a subset of shortcodes to small US carriers:
Union Telephone USA
West Central Wireless USA
Bluegrass Cellular USA
Carolina West Wireless USA
Rural Independent Network Alliance (RINA) USA
Illinois Valley Cellular USA
Inland Cellular USA
Nex Tech Communications USA
CellCom USA
Alaska Communications Systems (ACS) USA
GCI Communications USA
Thumb Cellular USA
Cross Wireless USA
Chat Mobility USA
Northwest Missouri Cellular USA
Panhandle Wireless USA
Viaero Wireless USA
MTPCS Cellular One (Cellone Nation) USA
Duet Wireless USA
SouthernLINC USA
Standing Rock Telecom USA
SRT Communications USA
Copper Valley Telecom USA
ASTAC USA
Cordova USA
Pine Belt USA
James Valley Cellular USA

Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

Posted May 24, 2021 - 00:23 PDT

Update

We are continuing to experience SMS delivery delays when sending messages using a subset of shortcodes to small US carriers:
Union Telephone USA
West Central Wireless USA
Bluegrass Cellular USA
Carolina West Wireless USA
Rural Independent Network Alliance (RINA) USA
Illinois Valley Cellular USA
Inland Cellular USA
Nex Tech Communications USA
CellCom USA
Alaska Communications Systems (ACS) USA
GCI Communications USA
Thumb Cellular USA
Cross Wireless USA
Chat Mobility USA
Northwest Missouri Cellular USA
Panhandle Wireless USA
Viaero Wireless USA
MTPCS Cellular One (Cellone Nation) USA
Duet Wireless USA
SouthernLINC USA
Standing Rock Telecom USA
SRT Communications USA
Copper Valley Telecom USA
ASTAC USA
Cordova USA
Pine Belt USA
James Valley Cellular USA

Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

Posted May 23, 2021 - 22:26 PDT

Investigating

We are experiencing SMS delivery delays when sending messages using a subset of shortcodes to small US carriers:
Union Telephone USA
West Central Wireless USA
Bluegrass Cellular USA
Carolina West Wireless USA
Rural Independent Network Alliance (RINA) USA
Illinois Valley Cellular USA
Inland Cellular USA
Nex Tech Communications USA
CellCom USA
Alaska Communications Systems (ACS) USA
GCI Communications USA
Thumb Cellular USA
Cross Wireless USA
Chat Mobility USA
Northwest Missouri Cellular USA
Panhandle Wireless USA
Viaero Wireless USA
MTPCS Cellular One (Cellone Nation) USA
Duet Wireless USA
SouthernLINC USA
Standing Rock Telecom USA
SRT Communications USA
Copper Valley Telecom USA
ASTAC USA
Cordova USA
Pine Belt USA
James Valley Cellular USA

Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted May 23, 2021 - 21:24 PDT

This incident affected: CARRIER NETWORK (SMS Short Code, North America).