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
2001-10-12 575-704 T-MOBILE USA, INC. 6529 LOVINGTON NM
2001-10-12 806-928 T-MOBILE USA, INC. 6529 LUBBOCK TX
2001-10-11 325-864 T-MOBILE USA, INC. 6529 ABILENE TX
2001-10-11 425-518 T-MOBILE USA, INC. 6529 BELLEVUE WA
2001-10-10 661-492 T-MOBILE USA, INC. 6529 LANCASTER CA
2001-10-10 661-709 T-MOBILE USA, INC. 6529 DELANO CA
2001-10-09 682-323 T-MOBILE USA, INC. 6529 ARLINGTON TX
2001-10-09 719-334 T-MOBILE USA, INC. 6529 PUEBLO CO
2001-10-08 210-875 T-MOBILE USA, INC. 6529 SANANTONIO TX
2001-10-05 859-991 T-MOBILE USA, INC. 6529 COVINGTON KY
2001-10-04 937-414 T-MOBILE USA, INC. 6529 DAYTON OH
2001-10-02 512-786 T-MOBILE USA, INC. 6529 AUSTIN TX
2001-10-01 419-210 T-MOBILE USA, INC. 6529 MT GILEAD OH
2001-09-29 216-355 T-MOBILE USA, INC. 6529 INDEPNDNCE OH
2001-09-28 217-819 T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2001-09-28 509-460 T-MOBILE USA, INC. 6529 KENNEWICK WA
2001-09-28 509-741 T-MOBILE USA, INC. 6529 WENATCHEE WA
2001-09-28 815-603 T-MOBILE USA, INC. 6529 JOLIET IL
2001-09-25 214-985 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2001-09-24 682-622 T-MOBILE USA, INC. 6529 ARLINGTON TX
2001-09-24 858-583 T-MOBILE USA, INC. 6529 SNDG LVTA CA
2001-09-23 216-322 T-MOBILE USA, INC. 6529 CLEVELAND OH
2001-09-21 254-238 T-MOBILE USA, INC. 6529 COPPERASCV TX
2001-09-20 304-444 T-MOBILE USA, INC. 6529 CHRLSTNZN1 WV
2001-09-19 209-298 T-MOBILE USA, INC. 6529 STOCKTON CA
2001-09-19 323-841 T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2001-09-19 510-415 T-MOBILE USA, INC. 6529 HAYWARD CA
2001-09-19 510-691 T-MOBILE USA, INC. 6529 HRCUL-RODE CA
2001-09-19 530-921 T-MOBILE USA, INC. 6529 REDDING CA
2001-09-19 559-709 T-MOBILE USA, INC. 6529 FRESNO CA
2001-09-19 619-347 T-MOBILE USA, INC. 6529 CORONADO CA
2001-09-19 619-549 T-MOBILE USA, INC. 6529 SNDG SNDG CA
2001-09-19 626-780 T-MOBILE USA, INC. 6529 EL MONTE CA
2001-09-19 714-724 T-MOBILE USA, INC. 6529 SANTA ANA CA
2001-09-19 775-287 T-MOBILE USA, INC. 6529 RENO NV
2001-09-19 818-445 T-MOBILE USA, INC. 6529 BRBN BRBN CA
2001-09-19 925-577 T-MOBILE USA, INC. 6529 DUBLN-SNRM CA
2001-09-19 949-394 T-MOBILE USA, INC. 6529 IRVINE CA
2001-09-19 951-377 T-MOBILE USA, INC. 6529 RIVERSIDE CA
2001-09-18 801-608 T-MOBILE USA, INC. 6529 SALT LAKE UT
2001-09-14 213-272 T-MOBILE USA, INC. 6529 LSAN DA 07 CA
2001-09-13 602-349 T-MOBILE USA, INC. 6529 PHOENIX AZ
2001-09-12 208-794 T-MOBILE USA, INC. 6529 BOISE ID
2001-09-12 214-966 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2001-09-12 831-207 T-MOBILE USA, INC. 6529 HOLLISTER CA
2001-09-11 213-268 T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2001-09-11 562-682 T-MOBILE USA, INC. 6529 LONG BEACH CA
2001-09-10 915-861 T-MOBILE USA, INC. 6529 EL PASO TX
2001-09-06 630-915 T-MOBILE USA, INC. 6529 HINSDALE IL
2001-09-06 773-875 T-MOBILE USA, INC. 6529 CHICGOZN08 IL

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.