NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 540
TELEPORT COMMUNICATIONS AMERICA, LLC - VA 95
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
2026-03-18 540-863-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2024-12-17 540-863-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2023-08-18 540-708-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CULPEPER VA
2021-12-14 540-919-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 FREDECKSBG VA
2021-04-02 540-768-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 SPOTSYLVAN VA
2020-10-14 540-596-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NEW CASTLE VA
2020-07-13 540-591-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 TROUTVILLE VA
2020-07-13 540-865-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2020-07-13 540-865-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2020-07-13 540-865-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2020-03-11 540-865-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2020-03-11 540-865-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CLIFTNFORG VA
2020-02-07 540-451-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WAYNESBORO VA
2020-01-21 540-960-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 COVINGTON VA
2019-11-08 540-573-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 PULASKI VA
2019-11-08 540-573-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 PULASKI VA
2019-11-08 540-573-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 PULASKI VA
2019-10-30 540-952-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BLACKSBURG VA
2019-09-27 540-708-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CULPEPER VA
2019-06-18 540-452-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 LURAY VA
2019-06-18 540-709-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 KINGGEORGE VA
2019-06-18 540-787-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 PEARISBURG VA
2019-04-10 540-215-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BROADWAY VA
2019-01-22 540-952-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BLACKSBURG VA
2019-01-22 540-952-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BLACKSBURG VA
2019-01-22 540-952-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BLACKSBURG VA
2018-11-20 540-644-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 DAHLGREN VA
2018-06-26 540-697-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-06-26 540-697-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WINCHESTER VA
2018-01-18 540-681-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 FREDECKSBG VA
2018-01-18 540-681-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 FREDECKSBG VA
2018-01-18 540-681-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 FREDECKSBG VA
2018-01-12 540-991-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 REMINGTON VA
2017-08-04 540-895-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BROKENBURG VA
2017-05-31 540-882-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CATOCTIN VA
2017-01-30 540-945-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA
2017-01-30 540-945-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA
2017-01-30 540-945-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA
2017-01-30 540-945-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA
2017-01-30 540-945-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA
2017-01-30 540-945-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA
2017-01-30 540-945-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ROANOKE VA

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.