NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 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 — 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
2005-05-04 813-413-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL
2005-05-04 813-435-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2005-05-04 813-435-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2005-05-04 813-489-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPASTH FL
2005-05-04 813-489-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPASTH FL
2005-05-04 813-699-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL
2005-05-04 813-699-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL
2005-05-02 813-359-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J PLANT CITY FL
2005-04-23 813-401-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-775-8XXX 8000–8999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-965-3XXX 3000–3999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-965-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-965-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-965-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-965-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-23 813-965-8XXX 8000–8999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-20 813-217-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-313-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-316-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPA FL
2005-04-20 813-317-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPA FL
2005-04-20 813-343-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAWST FL
2005-04-20 813-343-8XXX 8000–8999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAWST FL
2005-04-20 813-367-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-367-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-375-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-375-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-388-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPANTH FL
2005-04-20 813-393-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-20 813-433-1XXX 1000–1999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAWST FL
2005-04-20 813-436-9XXX 9000–9999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAEST FL
2005-04-20 813-470-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-04-12 813-838-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 ZEPHYRHILS FL
2005-04-12 813-965-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2005-04-12 813-965-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2005-04-05 813-326-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-05 813-326-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPA FL
2005-04-05 813-326-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-05 813-484-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-05 813-484-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-05 813-484-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-05 813-484-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-05 813-484-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-04 813-919-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPA FL
2005-04-01 813-965-9XXX 9000–9999Assigned METROPCS, INC. 5562 TAMPA FL
2005-03-25 813-600-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-03-25 813-600-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-03-25 813-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-03-25 813-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-03-25 813-635-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-03-25 813-965-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPA FL

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.