Update: SMS service degradation affecting AT&T USA

RESOLVED: 2015-08-21 21:24:00 UTC  AT&T USA have now confirmed resolution of the issue affecting their SMS service. Any MT messages that failed with response code 1020 during this period may be retried at the discretion of the content provider.  They have also...

SMS service degradation affecting AT&T USA

Since 2015-08-21 16:52:00 UTC AT&T USA have been experiencing an issue with their SMS service.  As a result of this issue, MO SMS messages and standard rate MT SMS messages are not being received by subscribers on the affected carrier.  MO SMS messages are being...

Update: SMS service degradation affecting T-Mobile USA

RESOLVED: 2015-08-11 14:25:00 UTC  Please be advised that the issue affecting T-Mobile USA has been resolved and traffic has been passing normally for a sustained period. Please accept our apologies on behalf of the carrier for any inconvenience.