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
2015-04-14 813-575-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2015-04-14 813-575-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2015-04-07 813-586-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2015-04-07 813-586-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2015-04-07 813-586-7XXX 7000–7999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2015-04-07 813-586-8XXX 8000–8999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2015-04-07 813-603-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C TAMPAEST FL
2015-03-31 813-586-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-31 813-586-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-31 813-586-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-31 813-586-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-31 813-586-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-867-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2015-03-23 813-906-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-906-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-906-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2015-03-23 813-906-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-906-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-906-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-906-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-23 813-906-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-03-18 813-580-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPAWST FL
2015-03-18 813-580-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPAWST FL
2015-03-16 813-559-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J TAMPACEN FL
2015-03-09 813-670-1XXX 1000–1999Assigned IP HORIZON LLC 515J ZEPHYRHILS FL
2015-03-05 813-906-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2015-03-05 813-906-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2015-03-03 813-559-1XXX 1000–1999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2015-02-18 813-603-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL
2015-02-10 813-580-1XXX 1000–1999Assigned METROPCS, INC. 5562 TAMPAWST FL
2015-02-10 813-580-2XXX 2000–2999Assigned METROPCS, INC. 5562 TAMPAWST FL
2015-02-10 813-580-3XXX 3000–3999Assigned METROPCS, INC. 5562 TAMPAWST FL
2015-02-09 813-559-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2015-02-04 813-559-7XXX 7000–7999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2015-02-04 813-559-8XXX 8000–8999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2015-02-04 813-559-9XXX 9000–9999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2015-01-26 813-559-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2015-01-20 813-895-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPA FL
2014-12-26 813-559-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2014-12-26 813-559-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2014-12-26 813-559-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2014-12-16 813-659-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 PLANT CITY FL
2014-12-16 813-773-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C TAMPASTH FL
2014-12-16 813-773-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C TAMPASTH FL
2014-12-16 813-773-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C TAMPASTH FL
2014-12-11 813-585-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-12-11 813-585-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-12-11 813-585-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-12-11 813-585-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-12-11 813-585-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 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.