NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 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, all time — NPA 564
TELEPORT COMMUNICATIONS AMERICA, LLC - WA 76
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
2024-01-09 564-252-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-255-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-256-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA

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.