NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 — NPA 813
TELIMIZE, LLC 4
TELEPORT COMMUNICATIONS AMERICA, LLC - FL 1
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
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-12-06 813-400-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-06 813-400-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-06 813-400-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-06 813-400-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-06 813-400-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-06 813-400-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-03 813-419-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPASTH FL
2010-12-03 813-644-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2010-12-02 813-644-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2010-12-01 813-498-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-520-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-638-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-644-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-01 813-644-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-11-30 813-520-4XXX 4000–4999Assigned AT&T - LOCAL 7421 TAMPACEN FL
2010-11-23 813-498-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2010-11-23 813-498-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2010-11-22 813-440-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2010-11-22 813-440-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2010-11-22 813-498-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2010-11-04 813-445-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL
2010-11-02 813-474-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPANTH FL
2010-10-26 813-440-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2010-10-26 813-455-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2010-10-26 813-455-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2010-10-26 813-756-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PLANT CITY FL
2010-10-19 813-419-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPASTH FL
2010-10-13 813-316-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPA FL
2010-10-11 813-364-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2010-10-06 813-364-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ZEPHYRHILS FL
2010-10-05 813-322-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2010-10-05 813-355-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2010-10-05 813-708-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E PLANT CITY FL
2010-10-05 813-708-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E PLANT CITY FL
2010-10-05 813-708-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E PLANT CITY FL
2010-10-05 813-995-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2010-09-22 813-528-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.