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
2003-11-03 806-544 T-MOBILE USA, INC. 6529 LUBBOCK TX
2003-10-21 309-489 T-MOBILE USA, INC. 6529 GENESEO IL
2003-10-13 340-344 T-MOBILE USA, INC. 6529 CHTAMSTTHS VI
2003-10-06 870-882 T-MOBILE USA, INC. 6529 JONESBORO AR
2003-07-30 309-540 T-MOBILE USA, INC. 6529 KEWANEE IL
2003-07-14 630-885 T-MOBILE USA, INC. 6529 NAPERVILLE IL
2003-07-14 815-590 T-MOBILE USA, INC. 6529 STERLING IL
2003-07-14 815-999 T-MOBILE USA, INC. 6529 JOLIET IL
2003-06-23 575-815 T-MOBILE USA, INC. 6529 TUCUMCARI NM
2003-06-18 509-387 T-MOBILE USA, INC. 6529 WENATCHEE WA
2003-06-03 575-418 T-MOBILE USA, INC. 6529 SOCORRO NM
2003-05-30 217-550 T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2003-05-16 217-530 T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2003-05-15 806-206 T-MOBILE USA, INC. 6529 AMARILLO TX
2003-05-01 216-326 T-MOBILE USA, INC. 6529 CLEVELAND OH
2003-03-21 574-301 T-MOBILE USA, INC. 6529 BREMEN IN
2003-03-05 708-299 T-MOBILE USA, INC. 6529 LA GRANGE IL
2003-02-24 414-334 T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2003-02-20 509-205 T-MOBILE USA, INC. 6529 KENNEWICK WA
2003-02-19 224-305 T-MOBILE USA, INC. 6529 NORTHBROOK IL
2003-02-10 216-269 T-MOBILE USA, INC. 6529 CLEVELAND OH
2003-02-04 870-440 T-MOBILE USA, INC. 6529 EL DORADO AR
2003-02-04 870-441 T-MOBILE USA, INC. 6529 PINE BLUFF AR
2003-01-22 414-243 T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2003-01-21 970-779 T-MOBILE USA, INC. 6529 DURANGO CO
2003-01-21 971-259 T-MOBILE USA, INC. 6529 AMITY OR
2003-01-20 830-200 T-MOBILE USA, INC. 6529 PLEASANTON TX
2003-01-16 309-502 T-MOBILE USA, INC. 6529 GENESEO IL
2003-01-06 216-526 T-MOBILE USA, INC. 6529 CLEVELAND OH
2003-01-02 309-501 T-MOBILE USA, INC. 6529 WASHINGTON IL
2003-01-02 573-202 T-MOBILE USA, INC. 6529 ROLLA MO
2002-12-31 501-277 T-MOBILE USA, INC. 6529 GREENBRIER AR
2002-12-23 870-390 T-MOBILE USA, INC. 6529 CAMDEN AR
2002-12-18 970-433 T-MOBILE USA, INC. 6529 GRAND JCT CO
2002-11-22 714-728 T-MOBILE USA, INC. 6529 ANAHEIM CA
2002-11-22 714-757 T-MOBILE USA, INC. 6529 ANAHEIM CA
2002-11-18 580-551 T-MOBILE USA, INC. 6529 ENID OK
2002-11-14 512-203 T-MOBILE USA, INC. 6529 AUSTIN TX
2002-11-14 801-830 T-MOBILE USA, INC. 6529 PROVO UT
2002-11-12 870-868 T-MOBILE USA, INC. 6529 ARKADLPHIA AR
2002-11-07 870-292 T-MOBILE USA, INC. 6529 HOPE AR
2002-11-07 903-933 T-MOBILE USA, INC. 6529 DEKALB TX
2002-11-06 520-234 T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2002-10-31 330-741 T-MOBILE USA, INC. 6529 BRUNSWICK OH
2002-10-31 702-372 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-10-31 715-330 T-MOBILE USA, INC. 6529 MARINETTE WI
2002-10-31 808-728 T-MOBILE USA, INC. 6529 HONOLULU HI
2002-10-30 618-410 T-MOBILE USA, INC. 6529 COLLINSVL IL
2002-10-30 830-322 T-MOBILE USA, INC. 6529 CARRIZOSPG TX
2002-10-30 903-370 T-MOBILE USA, INC. 6529 WASKOM TX

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.