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
2002-03-20 440-506 T-MOBILE USA, INC. 6529 ELYRIA OH
2002-03-20 505-718 T-MOBILE USA, INC. 6529 LAS VEGAS NM
2002-03-20 814-218 T-MOBILE USA, INC. 6529 ERIE PA
2002-03-20 814-384 T-MOBILE USA, INC. 6529 ERIE PA
2002-03-19 314-221 T-MOBILE USA, INC. 6529 KIRKWOOD MO
2002-03-15 419-971 T-MOBILE USA, INC. 6529 GALION OH
2002-03-15 513-283 T-MOBILE USA, INC. 6529 CINCINNATI OH
2002-03-14 219-588 T-MOBILE USA, INC. 6529 GARY IN
2002-03-14 574-376 T-MOBILE USA, INC. 6529 WARSAW IN
2002-03-13 708-717 T-MOBILE USA, INC. 6529 ORLAND IL
2002-03-13 847-208 T-MOBILE USA, INC. 6529 NORTHBROOK IL
2002-03-13 870-627 T-MOBILE USA, INC. 6529 JONESBORO AR
2002-03-12 661-735 T-MOBILE USA, INC. 6529 BKFD SOUTH CA
2002-03-12 715-697 T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2002-03-07 253-266 T-MOBILE USA, INC. 6529 AUBURN WA
2002-03-07 319-241 T-MOBILE USA, INC. 6529 CEDAR RPDS IA
2002-03-05 325-868 T-MOBILE USA, INC. 6529 SNYDER TX
2002-02-28 330-313 T-MOBILE USA, INC. 6529 CANTON OH
2002-02-25 309-303 T-MOBILE USA, INC. 6529 PEORIA IL
2002-02-22 304-952 T-MOBILE USA, INC. 6529 BLUEFIELD WV
2002-02-22 310-462 T-MOBILE USA, INC. 6529 INGLEWOOD CA
2002-02-22 714-580 T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2002-02-21 209-275 T-MOBILE USA, INC. 6529 MANTECA CA
2002-02-21 209-277 T-MOBILE USA, INC. 6529 TURLOCK CA
2002-02-21 310-980 T-MOBILE USA, INC. 6529 SNMN SNMN CA
2002-02-21 435-580 T-MOBILE USA, INC. 6529 NEPHI UT
2002-02-21 530-414 T-MOBILE USA, INC. 6529 TRUCKEE CA
2002-02-21 530-416 T-MOBILE USA, INC. 6529 SOUTHTAHOE CA
2002-02-21 559-350 T-MOBILE USA, INC. 6529 PORTERVL CA
2002-02-21 559-363 T-MOBILE USA, INC. 6529 MADERA CA
2002-02-21 805-295 T-MOBILE USA, INC. 6529 PISMOBEACH CA
2002-02-21 805-296 T-MOBILE USA, INC. 6529 PASOROBLES CA
2002-02-21 805-298 T-MOBILE USA, INC. 6529 MOORPARK CA
2002-02-21 909-910 T-MOBILE USA, INC. 6529 S BERNDINO CA
2002-02-21 949-350 T-MOBILE USA, INC. 6529 RNCHOVIEJO CA
2002-02-13 708-769 T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2002-02-13 818-381 T-MOBILE USA, INC. 6529 BRBN SNVY CA
2002-02-12 319-210 T-MOBILE USA, INC. 6529 CEDAR RPDS IA
2002-02-11 213-210 T-MOBILE USA, INC. 6529 LSAN DA 10 CA
2002-02-11 219-801 T-MOBILE USA, INC. 6529 E CHICAGO IN
2002-02-11 630-362 T-MOBILE USA, INC. 6529 NAPERVILLE IL
2002-02-11 708-307 T-MOBILE USA, INC. 6529 TINLEYPARK IL
2002-02-11 708-439 T-MOBILE USA, INC. 6529 HARVEY IL
2002-02-05 830-688 T-MOBILE USA, INC. 6529 BANDERA TX
2002-02-04 618-579 T-MOBILE USA, INC. 6529 MARION IL
2002-02-04 720-427 T-MOBILE USA, INC. 6529 DENVER CO
2002-01-31 512-269 T-MOBILE USA, INC. 6529 TAYLOR TX
2002-01-31 928-225 T-MOBILE USA, INC. 6529 FLAGSTAFF AZ
2002-01-29 209-261 T-MOBILE USA, INC. 6529 MERCED CA
2002-01-29 408-455 T-MOBILE USA, INC. 6529 LOS GATOS 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.