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
2013-02-22 210-803 T-MOBILE USA, INC. 6529 SANANTONIO TX
2013-02-21 469-345 T-MOBILE USA, INC. 6529 FORNEY TX
2013-02-21 951-349 T-MOBILE USA, INC. 6529 PERRIS CA
2013-02-19 314-305 T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-15 872-702 T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2013-02-01 720-380 T-MOBILE USA, INC. 6529 DENVER CO
2013-01-31 510-328 T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2013-01-29 210-717 T-MOBILE USA, INC. 6529 SANANTONIO TX
2013-01-28 385-210 T-MOBILE USA, INC. 6529 SALT LAKE UT
2013-01-25 602-582 T-MOBILE USA, INC. 6529 PHOENIX AZ
2013-01-25 602-657 T-MOBILE USA, INC. 6529 PHOENIX AZ
2013-01-22 469-478 T-MOBILE USA, INC. 6529 ENNIS TX
2013-01-21 602-812 T-MOBILE USA, INC. 6529 PHOENIX AZ
2013-01-18 510-598 T-MOBILE USA, INC. 6529 FRNK MAIN CA
2013-01-17 219-323 T-MOBILE USA, INC. 6529 CROWNPOINT IN
2013-01-15 314-526 T-MOBILE USA, INC. 6529 KIRKWOOD MO
2013-01-15 385-207 T-MOBILE USA, INC. 6529 PROVO UT
2013-01-15 602-849 T-MOBILE USA, INC. 6529 PHOENIX AZ
2013-01-15 702-337 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2013-01-11 210-773 T-MOBILE USA, INC. 6529 SANANTONIO TX
2013-01-11 520-286 T-MOBILE USA, INC. 6529 TUCSON AZ
2013-01-11 520-427 T-MOBILE USA, INC. 6529 TUCSON AZ
2012-12-26 971-312 T-MOBILE USA, INC. 6529 MCMINNVL OR
2012-12-24 707-389 T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2012-12-24 915-216 T-MOBILE USA, INC. 6529 EL PASO TX
2012-12-20 206-489 T-MOBILE USA, INC. 6529 SEATTLE WA
2012-12-20 469-434 T-MOBILE USA, INC. 6529 ROCKWALL TX
2012-12-18 619-382 T-MOBILE USA, INC. 6529 CHULAVISTA CA
2012-12-14 424-287 T-MOBILE USA, INC. 6529 SAN PEDRO CA
2012-12-13 210-708 T-MOBILE USA, INC. 6529 SANANTONIO TX
2012-12-13 469-410 T-MOBILE USA, INC. 6529 TERRELL TX
2012-11-30 682-217 T-MOBILE USA, INC. 6529 ARLINGTON TX
2012-11-29 415-231 T-MOBILE USA, INC. 6529 SNFC MT-EV CA
2012-11-26 469-336 T-MOBILE USA, INC. 6529 MIDLOTHIAN TX
2012-11-26 469-407 T-MOBILE USA, INC. 6529 FORNEY TX
2012-11-23 415-589 T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2012-11-21 469-347 T-MOBILE USA, INC. 6529 FRISCO TX
2012-11-21 512-998 T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-16 210-636 T-MOBILE USA, INC. 6529 SANANTONIO TX
2012-11-16 520-474 T-MOBILE USA, INC. 6529 TUCSON AZ
2012-11-09 303-505 T-MOBILE USA, INC. 6529 DENVER CO
2012-11-02 602-642 T-MOBILE USA, INC. 6529 PHOENIX AZ
2012-11-02 602-752 T-MOBILE USA, INC. 6529 PHOENIX AZ
2012-11-02 720-585 T-MOBILE USA, INC. 6529 DENVER CO
2012-11-01 501-420 T-MOBILE USA, INC. 6529 LITTLEROCK AR
2012-10-31 520-373 T-MOBILE USA, INC. 6529 TUCSON AZ
2012-10-19 602-736 T-MOBILE USA, INC. 6529 PHOENIX AZ
2012-10-18 425-435 T-MOBILE USA, INC. 6529 BELLEVUE WA
2012-10-04 206-549 T-MOBILE USA, INC. 6529 SEATTLE WA
2012-10-02 310-307 T-MOBILE USA, INC. 6529 W ANGELES 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.