FCC.reportPublic regulatory filings
FCC Registration Number

FRN 0004335584

CORES registration

CORES status
discovered

Connected companies

CompanyRelationshipSourceConfidence
MCI WorldCom Network Services, Inc./ MCI Communications CorporationregistrantFORM499100.0%
MCI WorldCom Network Services, Inc./ MCI Communications CorporationregistrantULS100.0%

Public regulatory phone numbers

NumberContactSourceConfidence
(202) 371-8090National Registered Agents service_agentFORM49995.0%
(601) 360-8600MCI WorldCom Network Services, Inc./ MCI Communications Corporation customer_inquiriesFORM499100.0%

ULS licenses

Grant dateCall signServiceStatusLicensee
2004-05-21335MCACTMCI Communications Corporation
2004-05-21334MCACTMCI Communications Corporation
2004-05-21330MCACTMCI Communications Corporation
1998-10-29WPEF689IGCMCI

FCC Form 499 filers

Current as ofFiler IDLegal name
2002-04-01807072MCI WorldCom Network Services, Inc./ MCI Communications Corporation

Source provenance

SystemRecordRecorded nameRaw FRNObserved
FORM499807072:840119MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-24 18:44:17
FORM499807072:840118MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-24 18:44:17
FORM499807072:840120MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-24 18:44:17
FORM499807072:840117MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-24 18:44:17
FORM499807072:784471MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-23 19:44:10
FORM499807072:784473MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-23 19:44:10
FORM499807072:784472MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-23 19:44:10
FORM499807072:784470MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-23 19:44:10
FORM499807072:728826MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-22 09:14:00
FORM499807072:728823MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-22 09:14:00
FORM499807072:728824MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-22 09:14:00
FORM499807072:728825MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-22 09:14:00
ULS848570MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-17 16:49:19
FORM499807072:673176MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-11 14:18:53
FORM499807072:673178MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-11 14:18:53
FORM499807072:673177MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-11 14:18:53
FORM499807072:673179MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-11 14:18:53
FORM499807072:617531MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-10 11:48:47
FORM499807072:617532MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-10 11:48:47
FORM499807072:617529MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-10 11:48:47
FORM499807072:617530MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-10 11:48:47
FORM499807072:561885MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-09 23:18:45
FORM499807072:561883MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-09 23:18:45
FORM499807072:561884MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-09 23:18:45
FORM499807072:561882MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-09 23:18:45
FORM499807072:506236MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-08 09:48:38
FORM499807072:506235MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-08 09:48:38
FORM499807072:506237MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-08 09:48:38
FORM499807072:506238MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-08 09:48:38
FORM499807072:450588MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-06 10:48:31
FORM499807072:450591MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-06 10:48:31
FORM499807072:450590MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-06 10:48:31
FORM499807072:450589MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-06 10:48:31
FORM499807072:394944MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-05 08:48:24
FORM499807072:394943MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-05 08:48:24
FORM499807072:394941MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-05 08:48:24
FORM499807072:394942MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-05 08:48:24
FORM499807072:339294MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-04 11:48:21
FORM499807072:339295MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-04 11:48:21
FORM499807072:339297MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-04 11:48:21
FORM499807072:339296MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-04 11:48:21
FORM499807072:283647MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-03 14:18:18
FORM499807072:283649MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-03 14:18:18
FORM499807072:283650MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-03 14:18:18
FORM499807072:283648MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-03 14:18:18
FORM499807072:228002MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-02 20:48:16
FORM499807072:228003MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-02 20:48:16
FORM499807072:228000MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-02 20:48:16
FORM499807072:228001MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-02 20:48:16
FORM499807072:172353MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-01 10:48:12
FORM499807072:172355MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-01 10:48:12
FORM499807072:172356MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-01 10:48:12
FORM499807072:172354MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-08-01 10:48:12
FORM499807072MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-07-31 19:09:45
FORM4992930MCI WorldCom Network Services, Inc./ MCI Communications Corporation00043355842026-07-31 19:09:44

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