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 757
TELEPORT COMMUNICATIONS AMERICA, LLC - VA 29
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
2025-09-18 757-720-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON4 VA
2021-08-24 757-658-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON1 VA
2021-05-29 757-992-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN2 VA
2020-10-14 757-666-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 ONANCOCK VA
2020-08-25 757-972-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON3 VA
2019-08-06 757-917-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON2 VA
2019-07-11 757-991-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON1 VA
2019-06-18 757-551-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 BELLEHAVEN VA
2019-03-13 757-231-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN4 VA
2019-01-23 757-901-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON2 VA
2018-03-15 757-527-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN3 VA
2016-10-14 757-698-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON1 VA
2016-09-27 757-990-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 TEMPERNCVL VA
2016-09-15 757-381-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON3 VA
2016-08-01 757-364-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON2 VA
2015-07-15 757-364-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON2 VA
2014-09-23 757-702-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CHINCOTEGU VA
2012-11-20 757-509-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN3 VA
2012-11-20 757-716-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON4 VA
2012-10-08 757-933-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN1 VA
2012-10-05 757-550-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON1 VA
2012-07-31 757-517-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 FRANKLIN VA
2012-07-31 757-942-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 SUFFOLK VA
2012-06-27 757-331-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 CAPECHARLS VA
2012-06-27 757-542-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 SMITHFIELD VA
2009-06-12 757-751-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN2 VA
2004-01-14 757-345-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WILLIAMSBG VA
2003-04-01 757-774-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 SUFFOLK VA
2002-08-02 757-215-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON3 VA

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.