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
2021-05-25 813-791-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPASTH FL
2021-05-18 813-821-0XXX 0000–0999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-1XXX 1000–1999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-2XXX 2000–2999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-8XXX 8000–8999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-18 813-821-9XXX 9000–9999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-05-17 813-738-9XXX 9000–9999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPANTH FL
2021-05-17 813-859-8XXX 8000–8999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E ZEPHYRHILS FL
2021-05-10 813-946-7XXX 7000–7999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E PLANT CITY FL
2021-04-23 813-412-2XXX 2000–2999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPA FL
2021-04-23 813-412-4XXX 4000–4999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPA FL
2021-04-23 813-412-7XXX 7000–7999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPA FL
2021-04-23 813-531-6XXX 6000–6999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPA FL
2021-04-22 813-668-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PLANT CITY FL
2021-04-22 813-668-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PLANT CITY FL
2021-04-19 813-509-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-509-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-568-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-568-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-568-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-568-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-568-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-697-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2021-04-19 813-697-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2021-04-19 813-697-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2021-04-19 813-697-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2021-04-19 813-697-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-697-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-19 813-697-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-04-14 813-859-1XXX 1000–1999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2021-04-14 813-859-2XXX 2000–2999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2021-04-14 813-859-3XXX 3000–3999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2021-04-12 813-776-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAWST FL
2021-04-02 813-742-9XXX 9000–9999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPASTH FL
2021-03-31 813-697-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2021-03-31 813-776-7XXX 7000–7999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPAWST FL
2021-03-29 813-697-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2021-03-26 813-738-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2021-03-26 813-738-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2021-03-26 813-738-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2021-03-25 813-776-8XXX 8000–8999Assigned HD CARRIER LLC 321J TAMPAWST FL
2021-03-25 813-776-9XXX 9000–9999Assigned HD CARRIER LLC 321J TAMPAWST FL
2021-03-25 813-859-0XXX 0000–0999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2021-03-25 813-859-9XXX 9000–9999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2021-03-22 813-845-7XXX 7000–7999Assigned METROPCS, INC. 5562 ZEPHYRHILS 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.