Public regulatory phone
(202) 887-3087
Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.
| Company or contact | FRN | System | Source record | Confidence | Observed |
|---|---|---|---|---|---|
| MCI WORLDCOM NETWORK SERVICES, INC L | ULS | 15f1b1e3fbeeb705afdae253da852e6194d4bea55b770397f775aca61d49f4b0 | Authoritative identifier (100.0%) | 2026-09-16 23:46:07 | |
| MCI WORLDCOM NETWORK SERVICES, INC L | ULS | 143d68d9a2e8f2f0970e47b0b5631c1a32b0114692ecd32a842f3abfc341ad88 | Authoritative identifier (100.0%) | 2026-09-13 05:45:52 | |
| MCI WORLDCOM NETWORK SERVICES, INC L | ULS | 1302af173595a6938286b1352e8d28b999b7289412efabdf1e0ad6f8bacfb85e | Authoritative identifier (100.0%) | 2026-09-11 07:45:37 | |
| MCI WORLDCOM NETWORK SERVICES, INC L | ULS | 0788c8029bd68572456fe366fe5fdb41b8a8650cc5f25630a400e935219dbcbc | Authoritative identifier (100.0%) | 2026-08-13 01:19:06 | |
| MCI WORLDCOM NETWORK SERVICES, INC L | ULS | 063d92b57d34643d42733b25be3bfe6be89f0efc0294d5d52e38baaa42c5b0a6 | Authoritative identifier (100.0%) | 2026-08-11 01:18:59 |