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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-07-22 813-982-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAEST FL
2005-07-22 813-982-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAEST FL
2005-07-21 813-333-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPANTH FL
2005-07-21 813-333-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPANTH FL
2005-07-21 813-333-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPANTH FL
2005-07-21 813-425-0XXX 0000–0999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2005-07-21 813-425-9XXX 9000–9999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2005-07-21 813-840-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2005-07-21 813-840-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2005-07-21 813-936-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2005-07-21 813-936-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2005-07-21 813-944-2XXX 2000–2999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPASTH FL
2005-07-21 813-944-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPASTH FL
2005-07-21 813-944-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPASTH FL
2005-07-21 813-944-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPASTH FL
2005-07-21 813-944-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPASTH FL
2005-07-18 813-313-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-313-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-514-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-514-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-830-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-830-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-830-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-830-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-990-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-18 813-990-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2005-07-14 813-482-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-482-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2005-07-14 813-990-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-07-14 813-990-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-07-14 813-990-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-07-14 813-990-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-07-14 813-990-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-07-11 813-777-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2005-07-11 813-777-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2005-07-11 813-777-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2005-07-11 813-777-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2005-06-29 813-868-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-06-29 813-983-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-06-29 813-983-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-06-29 813-983-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2005-06-28 813-359-7XXX 7000–7999Assigned METROPCS, INC. 5562 PLANT CITY FL
2005-06-28 813-377-5XXX 5000–5999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2005-06-28 813-425-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN 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.