NumberResearch Membership · Data 2026-04

Recent prefix assignments

5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04

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
T-MOBILE USA, INC. 5
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
2002-07-10 217-775 T-MOBILE USA, INC. 6529 DECATUR IL
2002-07-05 815-712 T-MOBILE USA, INC. 6529 LA SALLE IL
2002-07-05 918-707 T-MOBILE USA, INC. 6529 EUFAULA OK
2002-07-03 928-232 T-MOBILE USA, INC. 6529 WICKENBURG AZ
2002-06-27 480-577 T-MOBILE USA, INC. 6529 PHOENIX AZ
2002-06-27 719-369 T-MOBILE USA, INC. 6529 PUEBLO CO
2002-06-25 818-288 T-MOBILE USA, INC. 6529 BRBN BRBN CA
2002-06-24 515-212 T-MOBILE USA, INC. 6529 BOONE IA
2002-06-21 562-639 T-MOBILE USA, INC. 6529 PICORIVERA CA
2002-06-20 253-255 T-MOBILE USA, INC. 6529 TACOMA WA
2002-06-19 219-916 T-MOBILE USA, INC. 6529 VALPARAISO IN
2002-06-19 224-715 T-MOBILE USA, INC. 6529 LIBERTYVL IL
2002-06-19 808-358 T-MOBILE USA, INC. 6529 HONOLULU HI
2002-06-17 630-546 T-MOBILE USA, INC. 6529 ELMHURST IL
2002-06-14 310-947 T-MOBILE USA, INC. 6529 REDONDO CA
2002-06-14 323-712 T-MOBILE USA, INC. 6529 MONTEBELLO CA
2002-06-14 760-673 T-MOBILE USA, INC. 6529 PALM SPG CA
2002-06-14 951-906 T-MOBILE USA, INC. 6529 RIVERSIDE CA
2002-06-11 970-355 T-MOBILE USA, INC. 6529 GLENWD SPG CO
2002-06-10 224-489 T-MOBILE USA, INC. 6529 BARRINGTON IL
2002-06-10 309-750 T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2002-06-10 309-868 T-MOBILE USA, INC. 6529 PEORIA IL
2002-06-10 509-438 T-MOBILE USA, INC. 6529 KENNEWICK WA
2002-06-10 630-664 T-MOBILE USA, INC. 6529 NAPERVILLE IL
2002-06-10 708-743 T-MOBILE USA, INC. 6529 TINLEYPARK IL
2002-06-07 224-436 T-MOBILE USA, INC. 6529 LAKEFOREST IL
2002-06-05 224-558 T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2002-06-05 512-566 T-MOBILE USA, INC. 6529 LAMPASAS TX
2002-06-04 815-703 T-MOBILE USA, INC. 6529 ROCKFORD IL
2002-05-31 520-220 T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2002-05-24 562-842 T-MOBILE USA, INC. 6529 PICORIVERA CA
2002-05-23 316-727 T-MOBILE USA, INC. 6529 NEWTON KS
2002-05-23 405-589 T-MOBILE USA, INC. 6529 CHANDLER OK
2002-05-23 580-812 T-MOBILE USA, INC. 6529 MARIETTA OK
2002-05-21 708-699 T-MOBILE USA, INC. 6529 LA GRANGE IL
2002-05-21 773-759 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-05-21 918-718 T-MOBILE USA, INC. 6529 TAHLEQUAH OK
2002-05-21 918-908 T-MOBILE USA, INC. 6529 STROUD OK
2002-05-21 918-926 T-MOBILE USA, INC. 6529 CHECOTAH OK
2002-05-20 580-649 T-MOBILE USA, INC. 6529 ALTUS OK
2002-05-17 323-620 T-MOBILE USA, INC. 6529 LSAN DA 11 CA
2002-05-17 323-702 T-MOBILE USA, INC. 6529 LSAN DA 12 CA
2002-05-17 323-842 T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2002-05-17 323-899 T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2002-05-17 626-757 T-MOBILE USA, INC. 6529 ALHAMBRA CA
2002-05-17 702-348 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-05-17 707-812 T-MOBILE USA, INC. 6529 NAPA CA
2002-05-17 707-971 T-MOBILE USA, INC. 6529 PTLM MAIN CA
2002-05-17 760-912 T-MOBILE USA, INC. 6529 VICTORVL CA
2002-05-17 818-943 T-MOBILE USA, INC. 6529 RESEDA CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.