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
2002-04-08 419-961 T-MOBILE USA, INC. 6529 MANSFIELD OH
2002-04-08 440-320 T-MOBILE USA, INC. 6529 LORAIN OH
2002-04-08 440-739 T-MOBILE USA, INC. 6529 NEWBURY OH
2002-04-08 440-983 T-MOBILE USA, INC. 6529 MADISON OH
2002-04-08 814-402 T-MOBILE USA, INC. 6529 GIRARD PA
2002-04-05 216-254 T-MOBILE USA, INC. 6529 CLEVELAND OH
2002-04-04 405-762 T-MOBILE USA, INC. 6529 STILLWATER OK
2002-04-04 512-577 T-MOBILE USA, INC. 6529 AUSTIN TX
2002-04-04 773-510 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-04-02 262-649 T-MOBILE USA, INC. 6529 MILWAUKZN2 WI
2002-04-02 414-234 T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2002-04-02 414-235 T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2002-04-02 414-236 T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2002-04-01 858-602 T-MOBILE USA, INC. 6529 POWAY CA
2002-03-28 208-757 T-MOBILE USA, INC. 6529 IDAHOFALLS ID
2002-03-28 208-760 T-MOBILE USA, INC. 6529 POCATELLO ID
2002-03-28 208-948 T-MOBILE USA, INC. 6529 TWIN FALLS ID
2002-03-28 224-622 T-MOBILE USA, INC. 6529 BARRINGTON IL
2002-03-28 773-983 T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2002-03-27 580-606 T-MOBILE USA, INC. 6529 DUNCAN OK
2002-03-27 773-655 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-03-26 775-338 T-MOBILE USA, INC. 6529 RENO NV
2002-03-22 805-325 T-MOBILE USA, INC. 6529 SANTA YNEZ CA
2002-03-22 951-259 T-MOBILE USA, INC. 6529 PERRIS CA
2002-03-21 209-640 T-MOBILE USA, INC. 6529 TRACY CA
2002-03-21 209-663 T-MOBILE USA, INC. 6529 LODI CA
2002-03-21 209-740 T-MOBILE USA, INC. 6529 TRACY CA
2002-03-21 209-752 T-MOBILE USA, INC. 6529 LOS BANOS CA
2002-03-21 530-798 T-MOBILE USA, INC. 6529 GRVY MAIN CA
2002-03-21 619-675 T-MOBILE USA, INC. 6529 CORONADO CA
2002-03-21 707-761 T-MOBILE USA, INC. 6529 VACAVILLE CA
2002-03-21 707-803 T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2002-03-20 234-244 T-MOBILE USA, INC. 6529 CORTLAND OH
2002-03-20 234-248 T-MOBILE USA, INC. 6529 SHARON CTR OH
2002-03-20 234-369 T-MOBILE USA, INC. 6529 MANCHESTR OH
2002-03-20 234-380 T-MOBILE USA, INC. 6529 HUDSON OH
2002-03-20 234-650 T-MOBILE USA, INC. 6529 MASSILLON OH
2002-03-20 234-759 T-MOBILE USA, INC. 6529 NORTH LIMA OH
2002-03-20 330-356 T-MOBILE USA, INC. 6529 ALLIANCE OH
2002-03-20 330-389 T-MOBILE USA, INC. 6529 RAVENNA OH
2002-03-20 330-391 T-MOBILE USA, INC. 6529 MEDINA OH
2002-03-20 330-412 T-MOBILE USA, INC. 6529 CANTON OH
2002-03-20 330-619 T-MOBILE USA, INC. 6529 SHARON OH
2002-03-20 330-766 T-MOBILE USA, INC. 6529 WARREN OH
2002-03-20 330-881 T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2002-03-20 330-990 T-MOBILE USA, INC. 6529 AKRON OH
2002-03-20 440-231 T-MOBILE USA, INC. 6529 PAINESVL OH
2002-03-20 440-313 T-MOBILE USA, INC. 6529 E CLARIDON OH
2002-03-20 440-317 T-MOBILE USA, INC. 6529 BEDFORD OH
2002-03-20 440-319 T-MOBILE USA, INC. 6529 ASHTABULA 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.