NRNumberResearch Membership · Data 09/17/2026

← Area code 443

NEW CINGULAR WIRELESS PCS, LLC - DC

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

Prefixes held by NEW CINGULAR WIRELESS PCS, LLC - DC in area code 443
NPA-NXXRate centerOCNAssignedPooled
443-201 WESTMINSTR 4036 — Yes
443-204 PIKESVILLE 4036 2003-05-15 Yes
443-214 ANNAPOLIS 4036 2011-10-11 Yes
443-239 EASTON 4036 2004-01-20 Yes
443-240 BALTIMORE 4036 2012-01-27 Yes
443-253 BALTIMORE 4036 — —
443-255 BALTIMORE 4036 — —
443-258 EASTON 4036 — Yes
443-280 SYKESVILLE 4036 — Yes
443-298 EASTON 4036 2002-11-15 Yes
443-301 BALTIMORE 4036 2012-04-05 Yes
443-310 BALTIMORE 4036 — —
443-315 CATONSVL 4036 — Yes
443-326 BALTIMORE 4036 2001-02-21 —
443-333 ANNAPOLIS 4036 2009-02-13 Yes
443-370 ANNAPOLIS 4036 — Yes
443-381 REISTERSTN 4036 — Yes
443-421 FORK 4036 — —
443-422 GLENBURNIE 4036 2009-02-13 Yes
443-447 BALTIMORE 4036 2008-12-15 Yes
443-467 BALTIMORE 4036 2009-03-20 Yes
443-469 BALTIMORE 4036 2009-03-20 Yes
443-474 CATONSVL 4036 — —
443-488 BALTIMORE 4036 2010-06-23 Yes
443-500 BALTIMORE 4036 2009-03-20 Yes
443-513 BERLIN 4036 — Yes
443-520 CATONSVL 4036 — —
443-525 BALTIMORE 4036 2009-03-20 Yes
443-531 BALTIMORE 4036 2009-03-20 Yes
443-540 BALTIMORE 4036 — —
443-562 BALTIMORE 4036 — —
443-608 TOWSON 4036 2009-02-27 Yes
443-613 TOWSON 4036 2009-02-27 Yes
443-631 CATONSVL 4036 2005-08-16 Yes
443-635 BALTIMORE 4036 2009-10-14 Yes
443-655 BEL AIR 4036 — Yes
443-668 CATONSVL 4036 2001-01-15 Yes
443-676 BALTIMORE 4036 2001-06-20 —
443-691 BALTIMORE 4036 2001-01-15 —
443-714 ANNAPOLIS 4036 — Yes
443-735 SALISBURY 4036 — —
443-736 SALISBURY 4036 — Yes
443-742 BALTIMORE 4036 — —
443-756 BALTIMORE 4036 — —
443-765 CATONSVL 4036 2001-07-23 Yes
443-774 COLUMBIA 4036 2018-11-19 Yes
443-789 WESTMINSTR 4036 — Yes
443-791 TOWSON 4036 — Yes
443-794 BALTIMORE 4036 — —
443-799 BALTIMORE 4036 2001-07-23 —
443-831 BALTIMORE 4036 — —
443-838 BALTIMORE 4036 — —
443-840 CATONSVL 4036 2005-05-04 Yes
443-846 TOWSON 4036 — Yes
443-852 ANNAPOLIS 4036 2001-08-21 Yes
443-860 CATONSVL 4036 2005-05-04 Yes
443-875 ANNAPOLIS 4036 — Yes
443-897 BALTIMORE 4036 2011-04-12 Yes
443-905 ANNAPOLIS 4036 — Yes
443-910 BEL AIR 4036 2001-04-20 Yes
443-935 TOWSON 4036 2006-07-31 Yes
443-936 ELKRIDGE 4036 2017-02-23 Yes
443-941 ELKTON 4036 2011-09-07 Yes
443-945 ELKTON 4036 2002-07-02 Yes
443-956 BALTIMORE 4036 — —
443-968 PRINCEFRCK 4036 — Yes
443-975 PRINCEFRCK 4036 — Yes
443-980 CATONSVL 4036 — Yes
443-994 ANNAPOLIS 4036 — —
443-995 ANNAPOLIS 4036 — —
443-996 CATONSVL 4036 — —

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.