NumberResearch Membership · Data 2026-04

Recent thousands-block assignments

76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 2026-04

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
2004-07-26 209-277-1XXX T-MOBILE USA, INC. 6529 TURLOCK CA
2004-07-26 219-308-2XXX T-MOBILE USA, INC. 6529 CROWNPOINT IN
2004-07-26 253-205-1XXX T-MOBILE USA, INC. 6529 AUBURN WA
2004-07-26 425-208-1XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2004-07-26 541-610-5XXX T-MOBILE USA, INC. 6529 BEND OR
2004-07-26 562-236-7XXX T-MOBILE USA, INC. 6529 WHITTIER CA
2004-07-23 760-449-8XXX T-MOBILE USA, INC. 6529 PALM SPG CA
2004-07-23 773-829-2XXX T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2004-07-23 805-815-9XXX T-MOBILE USA, INC. 6529 OXNARD CA
2004-07-23 818-272-3XXX T-MOBILE USA, INC. 6529 SNFN PACM CA
2004-07-23 951-436-8XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-07-22 859-628-1XXX T-MOBILE USA, INC. 6529 COVINGTON KY
2004-07-22 859-628-2XXX T-MOBILE USA, INC. 6529 COVINGTON KY
2004-07-21 310-693-1XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-07-21 310-695-0XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-07-21 310-696-1XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-07-21 323-772-9XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2004-07-21 405-600-4XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2004-07-21 405-600-5XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2004-07-21 405-600-8XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2004-07-21 405-602-4XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2004-07-21 626-209-7XXX T-MOBILE USA, INC. 6529 COVINA CA
2004-07-21 708-724-0XXX T-MOBILE USA, INC. 6529 LA GRANGE IL
2004-07-21 708-724-1XXX T-MOBILE USA, INC. 6529 LA GRANGE IL
2004-07-20 520-990-2XXX T-MOBILE USA, INC. 6529 TUCSON AZ
2004-07-20 602-295-2XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-20 602-312-2XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-20 602-318-2XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-20 623-217-0XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-20 623-261-0XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-20 630-701-0XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-07-20 773-600-0XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-07-20 773-600-1XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-07-20 773-600-2XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-07-20 773-600-9XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-07-20 818-357-1XXX T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2004-07-20 818-357-6XXX T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2004-07-19 513-283-1XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2004-07-19 847-890-1XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-07-19 971-218-2XXX T-MOBILE USA, INC. 6529 SALEM OR
2004-07-19 971-218-3XXX T-MOBILE USA, INC. 6529 SALEM OR
2004-07-16 209-204-6XXX T-MOBILE USA, INC. 6529 MODESTO CA
2004-07-16 216-325-3XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2004-07-16 216-325-4XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2004-07-16 330-752-5XXX T-MOBILE USA, INC. 6529 AKRON OH
2004-07-16 512-351-1XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-07-16 512-351-2XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-07-16 512-351-5XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-07-16 512-351-6XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-07-16 562-569-7XXX T-MOBILE USA, INC. 6529 NORWALK CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.