NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2011-04-04 813-279-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPANTH FL
2011-04-04 813-279-9XXX 9000–9999Assigned METROPCS, INC. 5562 TAMPANTH FL
2011-03-28 813-419-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J TAMPASTH FL
2011-03-28 813-701-0XXX 0000–0999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-03-24 813-408-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAWST FL
2011-03-14 813-364-9XXX 9000–9999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-03-10 813-358-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAWST FL
2011-02-25 813-400-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2011-02-25 813-400-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2011-02-22 813-315-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPAEST FL
2011-02-22 813-419-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPASTH FL
2011-02-22 813-445-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL
2011-02-22 813-475-9XXX 9000–9999Assigned METROPCS, INC. 5562 TAMPAWST FL
2011-02-22 813-528-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPANTH FL
2011-02-22 813-793-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPAEST FL
2011-02-15 813-778-8XXX 8000–8999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-02-15 813-778-9XXX 9000–9999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-02-11 813-399-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-02-11 813-399-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-02-11 813-399-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-02-11 813-399-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-02-08 813-408-2XXX 2000–2999Assigned METROPCS, INC. 5562 TAMPAWST FL
2011-02-08 813-455-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPACEN FL
2011-02-08 813-455-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPACEN FL
2011-02-08 813-455-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPACEN FL
2011-02-08 813-703-3XXX 3000–3999Assigned METROPCS, INC. 5562 PLANT CITY FL
2011-02-08 813-715-2XXX 2000–2999Assigned BHN IP ENABLED SERVICES, LLC 045L ZEPHYRHILS FL
2011-02-08 813-862-6XXX 6000–6999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-01-25 813-862-7XXX 7000–7999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-01-20 813-419-4XXX 4000–4999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPASTH FL
2011-01-12 813-455-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-01-12 813-455-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-01-12 813-455-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2011-01-03 813-235-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2010-12-29 813-364-3XXX 3000–3999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2010-12-22 813-995-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2010-12-21 813-779-5XXX 5000–5999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2010-12-20 813-455-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2010-12-20 813-455-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2010-12-17 813-720-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY FL
2010-12-17 813-720-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY FL
2010-12-17 813-720-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY FL
2010-12-14 813-501-1XXX 1000–1999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPANTH FL
2010-12-09 813-399-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-09 813-399-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-09 813-399-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-09 813-399-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-09 813-399-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-09 813-399-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2010-12-07 813-345-2XXX 2000–2999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPANTH FL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.