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
2004-05-10 630-364-9XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-05-10 630-849-0XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-05-10 630-849-1XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-05-10 815-276-2XXX T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2004-05-10 847-636-3XXX T-MOBILE USA, INC. 6529 DESPLAINES IL
2004-05-10 847-636-4XXX T-MOBILE USA, INC. 6529 DESPLAINES IL
2004-05-09 213-550-7XXX T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2004-05-09 714-362-1XXX T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2004-05-09 714-362-4XXX T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2004-05-09 714-552-7XXX T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-05-09 805-284-3XXX T-MOBILE USA, INC. 6529 SANBARBARA CA
2004-05-09 805-284-4XXX T-MOBILE USA, INC. 6529 SANBARBARA CA
2004-05-09 818-984-9XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-05-07 330-261-3XXX T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2004-05-07 330-708-3XXX T-MOBILE USA, INC. 6529 ELIVERPOOL OH
2004-05-06 512-269-2XXX T-MOBILE USA, INC. 6529 TAYLOR TX
2004-05-05 310-484-4XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-05-05 310-484-9XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-05-05 310-531-3XXX T-MOBILE USA, INC. 6529 HAWTHORNE CA
2004-05-05 310-531-4XXX T-MOBILE USA, INC. 6529 HAWTHORNE CA
2004-05-05 310-873-8XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-05-05 310-954-7XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-05-05 330-354-7XXX T-MOBILE USA, INC. 6529 HARTVILLE OH
2004-05-05 575-418-1XXX T-MOBILE USA, INC. 6529 SOCORRO NM
2004-05-05 575-442-0XXX T-MOBILE USA, INC. 6529 ALAMOGORDO NM
2004-05-05 661-932-8XXX T-MOBILE USA, INC. 6529 BKFD MAIN CA
2004-05-05 760-792-8XXX T-MOBILE USA, INC. 6529 VICTORVL CA
2004-05-05 909-438-7XXX T-MOBILE USA, INC. 6529 CHINO CA
2004-05-05 909-438-8XXX T-MOBILE USA, INC. 6529 CHINO CA
2004-05-05 951-271-6XXX T-MOBILE USA, INC. 6529 CORONA CA
2004-05-04 310-847-9XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-05-04 360-402-2XXX T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-05-04 503-484-3XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-05-04 509-304-6XXX T-MOBILE USA, INC. 6529 CLE ELUM WA
2004-05-04 661-674-5XXX T-MOBILE USA, INC. 6529 LANCASTER CA
2004-05-04 775-351-8XXX T-MOBILE USA, INC. 6529 RENO NV
2004-05-04 775-351-9XXX T-MOBILE USA, INC. 6529 RENO NV
2004-05-04 909-528-3XXX T-MOBILE USA, INC. 6529 MENTONE CA
2004-05-04 909-528-4XXX T-MOBILE USA, INC. 6529 MENTONE CA
2004-04-29 253-592-4XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-29 253-592-5XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-29 253-592-7XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-29 253-592-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-29 253-592-9XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-29 509-305-8XXX T-MOBILE USA, INC. 6529 SUNNYSIDE WA
2004-04-29 970-978-8XXX T-MOBILE USA, INC. 6529 GREELEY CO
2004-04-29 971-275-0XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-04-29 971-275-9XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-04-28 309-444-6XXX T-MOBILE USA, INC. 6529 WASHINGTON IL
2004-04-28 309-642-2XXX T-MOBILE USA, INC. 6529 PEKIN IL

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.