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
2002-09-20 949-742 T-MOBILE USA, INC. 6529 TRABUCO CA
2002-09-20 949-903 T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2002-09-19 209-502 T-MOBILE USA, INC. 6529 RIVERBANK CA
2002-09-19 209-542 T-MOBILE USA, INC. 6529 HUGHSON CA
2002-09-19 209-676 T-MOBILE USA, INC. 6529 ATWATER CA
2002-09-19 209-764 T-MOBILE USA, INC. 6529 OAKDALE CA
2002-09-19 323-350 T-MOBILE USA, INC. 6529 LSAN DA 04 CA
2002-09-19 323-788 T-MOBILE USA, INC. 6529 LSAN DA 05 CA
2002-09-19 408-429 T-MOBILE USA, INC. 6529 CAMPBELL CA
2002-09-19 415-612 T-MOBILE USA, INC. 6529 IGNACIO CA
2002-09-19 415-690 T-MOBILE USA, INC. 6529 BELVEDERE CA
2002-09-19 510-213 T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2002-09-19 510-417 T-MOBILE USA, INC. 6529 ELSBR-PINL CA
2002-09-19 510-717 T-MOBILE USA, INC. 6529 OKLD BKLY CA
2002-09-19 559-813 T-MOBILE USA, INC. 6529 FOWLER CA
2002-09-19 559-940 T-MOBILE USA, INC. 6529 CLOVIS CA
2002-09-19 559-942 T-MOBILE USA, INC. 6529 CARUTHERS CA
2002-09-19 619-519 T-MOBILE USA, INC. 6529 CORONADO CA
2002-09-19 626-715 T-MOBILE USA, INC. 6529 LA PUENTE CA
2002-09-19 626-731 T-MOBILE USA, INC. 6529 SNGBLCNN CA
2002-09-19 626-841 T-MOBILE USA, INC. 6529 MONROVIA CA
2002-09-19 626-905 T-MOBILE USA, INC. 6529 AZUSA CA
2002-09-19 626-922 T-MOBILE USA, INC. 6529 COVINA CA
2002-09-19 650-305 T-MOBILE USA, INC. 6529 LOS ALTOS CA
2002-09-19 650-440 T-MOBILE USA, INC. 6529 HALFMOONBY CA
2002-09-19 650-861 T-MOBILE USA, INC. 6529 MT VIEW CA
2002-09-19 707-771 T-MOBILE USA, INC. 6529 BENICIA CA
2002-09-19 714-717 T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2002-09-19 760-701 T-MOBILE USA, INC. 6529 EL MIRAGE CA
2002-09-17 928-230 T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2002-09-12 702-234 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-09-12 702-292 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-09-12 702-325 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-09-12 702-327 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-09-12 702-328 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-09-12 702-336 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-09-09 714-726 T-MOBILE USA, INC. 6529 FULLERTON CA
2002-09-09 818-913 T-MOBILE USA, INC. 6529 GLENDALE CA
2002-09-06 310-430 T-MOBILE USA, INC. 6529 SNMN SNMN CA
2002-09-06 909-997 T-MOBILE USA, INC. 6529 FONTANA CA
2002-08-30 224-730 T-MOBILE USA, INC. 6529 ZION IL
2002-08-30 562-331 T-MOBILE USA, INC. 6529 ALAMITOS CA
2002-08-30 562-556 T-MOBILE USA, INC. 6529 WHITTIER CA
2002-08-30 562-569 T-MOBILE USA, INC. 6529 NORWALK CA
2002-08-30 562-644 T-MOBILE USA, INC. 6529 DOWNEY CA
2002-08-30 562-713 T-MOBILE USA, INC. 6529 LA HABRA CA
2002-08-30 562-832 T-MOBILE USA, INC. 6529 PICORIVERA CA
2002-08-30 562-841 T-MOBILE USA, INC. 6529 LAKEWOOD CA
2002-08-30 858-504 T-MOBILE USA, INC. 6529 RNCHOSANFE CA
2002-08-30 858-610 T-MOBILE USA, INC. 6529 SNDG MRMS 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.