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
2002-08-30 858-717 T-MOBILE USA, INC. 6529 SNDG LVTA CA
2002-08-30 858-733 T-MOBILE USA, INC. 6529 RNCHOPNQTS CA
2002-08-30 858-776 T-MOBILE USA, INC. 6529 RNCHOBRNDO CA
2002-08-29 562-686 T-MOBILE USA, INC. 6529 WHITTIER CA
2002-08-28 928-862 T-MOBILE USA, INC. 6529 SEDONA AZ
2002-08-28 928-863 T-MOBILE USA, INC. 6529 FLAGSTAFF AZ
2002-08-27 775-291 T-MOBILE USA, INC. 6529 CARSONCITY NV
2002-08-23 325-436 T-MOBILE USA, INC. 6529 SNYDER TX
2002-08-22 806-440 T-MOBILE USA, INC. 6529 PAMPA TX
2002-08-21 310-951 T-MOBILE USA, INC. 6529 TORRANCE CA
2002-08-21 312-927 T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2002-08-21 530-828 T-MOBILE USA, INC. 6529 CHICO CA
2002-08-21 760-917 T-MOBILE USA, INC. 6529 VISTA CA
2002-08-21 773-934 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-08-15 773-807 T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2002-08-13 224-659 T-MOBILE USA, INC. 6529 ELK GROVE IL
2002-08-13 469-877 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2002-08-13 469-878 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2002-08-13 469-879 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2002-08-09 520-265 T-MOBILE USA, INC. 6529 BENSON AZ
2002-08-09 520-266 T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2002-08-09 636-290 T-MOBILE USA, INC. 6529 TROY MO
2002-08-09 636-293 T-MOBILE USA, INC. 6529 OFALLON MO
2002-08-07 928-237 T-MOBILE USA, INC. 6529 PRESCOTT AZ
2002-08-07 928-239 T-MOBILE USA, INC. 6529 SEDONA AZ
2002-08-01 760-812 T-MOBILE USA, INC. 6529 LKISABELLA CA
2002-08-01 760-960 T-MOBILE USA, INC. 6529 EL CENTRO CA
2002-08-01 760-977 T-MOBILE USA, INC. 6529 RIDGECREST CA
2002-08-01 909-319 T-MOBILE USA, INC. 6529 ONTARIO CA
2002-08-01 951-454 T-MOBILE USA, INC. 6529 CORONA CA
2002-08-01 951-775 T-MOBILE USA, INC. 6529 TEMECULA CA
2002-07-31 702-353 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-07-31 702-354 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-07-30 224-628 T-MOBILE USA, INC. 6529 NORTHBROOK IL
2002-07-25 419-650 T-MOBILE USA, INC. 6529 CLYDE OH
2002-07-24 830-556 T-MOBILE USA, INC. 6529 SEGUIN TX
2002-07-23 574-297 T-MOBILE USA, INC. 6529 MONTICELLO IN
2002-07-23 775-294 T-MOBILE USA, INC. 6529 FALLON NV
2002-07-22 773-814 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-07-18 360-912 T-MOBILE USA, INC. 6529 PT ANGELES WA
2002-07-18 360-914 T-MOBILE USA, INC. 6529 OAK HARBOR WA
2002-07-17 760-880 T-MOBILE USA, INC. 6529 PALM SPG CA
2002-07-17 760-908 T-MOBILE USA, INC. 6529 OCSD OCSD CA
2002-07-15 224-595 T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2002-07-11 440-278 T-MOBILE USA, INC. 6529 WICKLIFFE OH
2002-07-11 440-318 T-MOBILE USA, INC. 6529 CHAGRINFLS OH
2002-07-11 440-390 T-MOBILE USA, INC. 6529 NOROYALTON OH
2002-07-11 440-454 T-MOBILE USA, INC. 6529 OLMSTEDFLS OH
2002-07-11 440-532 T-MOBILE USA, INC. 6529 BEREA OH
2002-07-11 440-533 T-MOBILE USA, INC. 6529 GATESMILLS OH

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.