NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

77 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
NEW CINGULAR WIRELESS PCS, LLC - IL 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
NEW CINGULAR WIRELESS PCS, LLC - GA 8
NEW CINGULAR WIRELESS PCS, LLC 8
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
2011-09-13 208-957 NEW CINGULAR WIRELESS PCS, LLC 6010 BOISE ID
2011-09-09 207-245 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTLAND ME
2011-09-07 443-941 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKTON MD
2011-09-02 208-391 NEW CINGULAR WIRELESS PCS, LLC 6010 BOISE ID
2011-09-01 385-252 NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2011-09-01 623-396 NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2011-08-31 786-651 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NORTH DADE FL
2011-08-25 832-270 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON TX
2011-08-25 832-517 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON TX
2011-08-24 404-263 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
2011-08-24 404-268 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
2011-08-24 870-300 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DERMOTT AR
2011-08-23 949-491 NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2011-08-22 509-808 NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2011-08-19 484-714 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2011-08-18 208-920 NEW CINGULAR WIRELESS PCS, LLC 6010 SANDPOINT ID
2011-08-18 415-361 NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-08-18 559-580 NEW CINGULAR WIRELESS PCS, LLC 6010 COARSEGOLD CA
2011-08-17 312-241 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2011-08-17 425-615 NEW CINGULAR WIRELESS PCS, LLC 6010 BELLEVUE WA
2011-08-12 612-244 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-08-12 720-606 NEW CINGULAR WIRELESS PCS, LLC 6010 FORTLUPTON CO
2011-08-12 971-273 NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2011-08-08 405-434 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHAWNEE OK
2011-08-02 253-448 NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2011-08-01 385-319 NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2011-07-29 225-349 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-29 225-421 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-29 281-908 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON TX
2011-07-29 281-928 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON TX
2011-07-29 408-477 NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS WEST CA
2011-07-29 832-564 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON TX
2011-07-28 225-250 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-28 816-787 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2011-07-28 816-832 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2011-07-28 816-982 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2011-07-28 956-250 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDINBURG TX
2011-07-22 224-255 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WINNETKA IL
2011-07-22 253-329 NEW CINGULAR WIRELESS PCS, LLC 6010 AUBURN WA
2011-07-22 402-302 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORFOLK NE
2011-07-21 317-476 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2011-07-19 909-296 NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2011-07-18 424-278 NEW CINGULAR WIRELESS PCS, LLC 6010 BEVERLYHLS CA
2011-07-18 631-524 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2011-07-18 949-572 NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2011-07-12 857-265 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BOSTON MA
2011-07-11 480-249 NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2011-07-11 480-257 NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2011-07-08 510-358 NEW CINGULAR WIRELESS PCS, LLC 6010 FRNK MAIN CA
2011-07-08 720-539 NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.