TELEPORT COMMUNICATIONS AMERICA, LLC - MD

48 prefixes in 443 · initial assignments from the NANPA CO code file, 09/17/2026

Prefixes held by TELEPORT COMMUNICATIONS AMERICA, LLC - MD in area code 443
NPA-NXX	Rate center	OCN	Assigned	Pooled
443-231	ESSEX	7325	—	Yes
443-267	DARLINGTON	7325	—	Yes
443-272	RANDALLSTN	7325	—	Yes
443-273	REISTERSTN	7325	—	Yes
443-297	ARBUTUS	7325	—	Yes
443-343	MILLERSVL	7325	—	Yes
443-348	WOODLAWN	7325	—	Yes
443-360	ABERDEEN	7325	—	Yes
443-364	ELLICOTTCY	7325	—	Yes
443-376	DUNDALK	7325	—	Yes
443-392	BALTIMORE	7325	—	Yes
443-402	EDGEWOOD	7325	—	Yes
443-406	ELKTON	7325	—	Yes
443-412	CHURCHVL	7325	—	Yes
443-417	FALLSTON	7325	—	Yes
443-424	CARDIFF	7325	—	Yes
443-425	PARKVILLE	7325	—	Yes
443-437	POCOMOKE	7325	2004-11-01	Yes
443-441	GLENWOOD	7325	—	Yes
443-457	BRYNPKLNCM	7325	—	Yes
443-489	CHASE	7325	—	Yes
443-502	HAVREGRACE	7325	—	Yes
443-507	HAMPSTEAD	7325	—	Yes
443-533	JARRETTSVL	7325	—	Yes
443-620	WATERLO238	7325	—	Yes
443-648	ESSEX	7325	—	Yes
443-671	NEWWINDSOR	7325	—	Yes
443-672	PARKTON	7325	—	Yes
443-674	NORTH EAST	7325	—	Yes
443-679	SEVERN	7325	—	Yes
443-693	PERRYVILLE	7325	—	Yes
443-698	ODENTON	7325	—	Yes
443-731	PT DEPOSIT	7325	—	Yes
443-732	SILVER RUN	7325	—	Yes
443-733	WATERLO238	7325	—	Yes
443-784	ARGRGBSNIS	7325	—	Yes
443-880	SALISBURY	7325	—	Yes
443-883	GLENBURNIE	7325	—	Yes
443-886	COCKEYSVL	7325	—	Yes
443-896	COLUMBIA	7325	—	Yes
443-914	WORTHINGTN	7325	—	Yes
443-918	TANEYTOWN	7325	—	Yes
443-920	SYKESVILLE	7325	—	Yes
443-933	COCKEYSVL	7325	2004-04-20	Yes
443-937	UNION BDG	7325	—	Yes
443-942	SEVERNA PK	7325	—	Yes
443-943	SPARROWSPT	7325	—	Yes
443-974	WESTMINSTR	7325	—	Yes

These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.