NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days
T-MOBILE USA, INC. 76
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 thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2006-01-09 815-516-4XXX T-MOBILE USA, INC. 6529 ROCKFORD IL
2006-01-09 859-669-9XXX T-MOBILE USA, INC. 6529 COVINGTON KY
2006-01-09 920-268-3XXX T-MOBILE USA, INC. 6529 APPLETON WI
2006-01-09 971-344-6XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-09 971-344-7XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-09 971-344-8XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-09 971-344-9XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-06 210-343-0XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-01-06 210-360-0XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-01-06 210-362-0XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-01-06 210-412-8XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-01-06 210-442-9XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-01-06 319-493-8XXX T-MOBILE USA, INC. 6529 WATERLOO IA
2006-01-06 480-388-5XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-01-06 480-388-6XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-01-06 480-388-7XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-01-06 630-401-4XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-01-06 775-292-9XXX T-MOBILE USA, INC. 6529 GARDNERVL NV
2006-01-06 814-218-5XXX T-MOBILE USA, INC. 6529 ERIE PA
2006-01-06 815-319-0XXX T-MOBILE USA, INC. 6529 ROCKFORD IL
2006-01-06 928-221-2XXX T-MOBILE USA, INC. 6529 FLAGSTAFF AZ
2006-01-06 940-882-2XXX T-MOBILE USA, INC. 6529 WICHITAFLS TX
2006-01-05 253-503-9XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-01-05 253-617-9XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-01-05 323-203-2XXX T-MOBILE USA, INC. 6529 LSAN DA 14 CA
2006-01-05 323-203-4XXX T-MOBILE USA, INC. 6529 LSAN DA 14 CA
2006-01-05 405-371-1XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 405-371-2XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 405-371-3XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 405-822-2XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 405-921-0XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 405-924-2XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 405-962-9XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-01-05 530-262-9XXX T-MOBILE USA, INC. 6529 REDDING CA
2006-01-05 619-490-5XXX T-MOBILE USA, INC. 6529 LA MESA CA
2006-01-05 626-325-4XXX T-MOBILE USA, INC. 6529 SIERRAMADR CA
2006-01-05 760-696-1XXX T-MOBILE USA, INC. 6529 OCSD OCSD CA
2006-01-05 805-280-5XXX T-MOBILE USA, INC. 6529 SANBARBARA CA
2006-01-05 805-975-9XXX T-MOBILE USA, INC. 6529 PASOROBLES CA
2006-01-05 808-206-3XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2006-01-05 808-206-4XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2006-01-05 818-245-0XXX T-MOBILE USA, INC. 6529 GLENDALE CA
2006-01-05 818-245-2XXX T-MOBILE USA, INC. 6529 GLENDALE CA
2006-01-05 949-973-4XXX T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2006-01-05 951-742-1XXX T-MOBILE USA, INC. 6529 RIVERSIDE CA
2006-01-04 309-642-3XXX T-MOBILE USA, INC. 6529 PEKIN IL
2006-01-04 310-775-3XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2006-01-04 314-835-8XXX T-MOBILE USA, INC. 6529 KIRKWOOD MO
2006-01-04 316-212-9XXX T-MOBILE USA, INC. 6529 NEWTON KS
2006-01-04 541-570-8XXX T-MOBILE USA, INC. 6529 LEBANON OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.