NumberResearch Membership · Data 09/22/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026

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 660
TELEPORT COMMUNICATIONS AMERICA, LLC - MO 27
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
2023-08-22 660-994-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 EDINA MO
2023-08-08 660-445-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MILAN MO
2023-08-08 660-572-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MOUND CITY MO
2023-03-21 660-252-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 TIPTON MO
2022-06-09 660-455-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 MONTROSE MO
2021-11-10 660-699-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 CLARENCE MO
2020-04-24 660-310-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 SEDALIA MO
2020-02-21 660-386-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 BUTLER MO
2019-11-15 660-259-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 LEXINGTON MO
2019-09-05 660-251-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 LEXINGTON MO
2019-08-23 660-771-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MARYVILLE MO
2019-04-11 660-869-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 CLINTON MO
2019-03-28 660-675-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 BROOKFIELD MO
2018-11-02 660-362-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 WARRENSBG MO
2017-03-01 660-329-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 CARROLLTON MO
2017-01-06 660-415-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MACON MO
2015-12-15 660-357-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 TRENTON MO
2015-01-16 660-723-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 WARSAW MO
2014-04-23 660-240-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CHILLICOTH MO
2014-01-06 660-357-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 TRENTON MO
2012-12-18 660-372-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MOBERLY MO
2012-12-18 660-672-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 BOONVILLE MO
2012-10-15 660-402-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MARCELINE MO
2012-09-24 660-338-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 GLASGOW MO
2009-04-10 660-236-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MARSHALL MO
2008-07-14 660-851-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 SEDALIA MO
2008-04-11 660-234-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 KIRKSVILLE MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.