Public regulatory phone

(972) 656-5287

Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.

Company or contact	System	Source record	Confidence	Observed
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	1460a8164789a9c071e61a8afec7f7e84888301e2b2a1299904fe41c40bc32fd	Authoritative identifier (100.0%)	2026-09-13 13:15:51
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	11e2f2de37ff361f9a28cddceb69b03a70958e5a6ccf0a5ee86503e8a3a2196d	Authoritative identifier (100.0%)	2026-09-09 21:15:33
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	0f5bb9cad7ecfc7ad725d4c80d586e67323c6a68700779e4ab6e45aefc86a46e	Authoritative identifier (100.0%)	2026-09-01 14:14:55
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	0da3f17a73f1c17a3f82aebe80dd3a2c38ed89c85a41d621f1d1eba886c9397b	Authoritative identifier (100.0%)	2026-08-26 15:14:34
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	0b89c71d0b05b3d201aa39037efd2d030f6b9173f02923272ec36c670155cab1	Authoritative identifier (100.0%)	2026-08-21 11:14:03
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	09e3725b54166e7b0dedd98fda77bc7b1a3fa6abe1d33863fbd565ef14823910	Authoritative identifier (100.0%)	2026-08-17 15:49:26
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	06db7c65c5d27562c148e54cec5259e63c9eb566b645a04dfe5a1ff4ae8dc8e7	Authoritative identifier (100.0%)	2026-08-12 03:19:00
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	06389338936d6b3ae0481cda978b6410efc2dd9d6e78031a54b355f2340aed3d	Authoritative identifier (100.0%)	2026-08-11 00:49:00
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	05774ca2e4f8f5f8a1dd08fc89417fbd2f88f3e6c042b96d923001bf3e8ab8bd	Authoritative identifier (100.0%)	2026-08-09 20:48:57
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	04d1b0f7b03ec42614fb3cd9c16dee481d7115f70e404bf41888841920da9087	Authoritative identifier (100.0%)	2026-08-08 05:18:50
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	04cd38e77e4ba4bbb731c20a0cfd230556d2a4fca88e7f4bef5cdb56419a897a	Authoritative identifier (100.0%)	2026-08-08 04:48:46
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	032703f29b87b786cfae41a2a28af80ac4ca3d06a5e7fd80d1bf1e0db848e460	Authoritative identifier (100.0%)	2026-08-05 17:18:32
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	030c25780d5e22b04220e0329a53b1cce96f2df3141e4eeff1e161fe3d03add8	Authoritative identifier (100.0%)	2026-08-05 14:18:29
MCI WORLDCOM Network Services, Inc. owner	ASR	38143d2e7e670aaa88673be0ba35c02aad043f5d5a10a592178b3acefe45ce34	Authoritative identifier (100.0%)	2026-08-03 17:48:25
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	011c03761bcd75d6fda671e8d7f8dba70f5d826eeb389229af2040f8c41a218b	Authoritative identifier (100.0%)	2026-08-02 15:18:21
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	00baede5f593d46cb77f3dc7e4a9cfeb8c7726b3fac88a79e2f1b297776f801d	Authoritative identifier (100.0%)	2026-08-01 18:48:16
MCI WORLDCOM NETWORK SERVICES, INC L	ULS	0027569dbb4f607347253472cc54195610435d703509e2e412343d892814a6fc	Authoritative identifier (100.0%)	2026-07-31 22:18:10