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 417
TELEPORT COMMUNICATIONS AMERICA, LLC - MO 55
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
2026-07-20 417-571-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2026-03-11 417-584-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2026-03-11 417-584-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2026-03-11 417-584-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2026-03-11 417-584-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2026-03-10 417-584-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2023-03-21 417-738-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 FORDLAND MO
2021-05-11 417-512-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2021-03-19 417-477-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 MOUNTANGRV MO
2021-03-15 417-517-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 REEDS SPG MO
2020-08-31 417-545-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 FORSYTH MO
2020-08-31 417-662-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SELIGMAN MO
2020-05-04 417-512-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2020-02-04 417-366-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 MT VERNON MO
2019-08-23 417-308-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 AURORA MO
2019-04-23 417-526-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CARTHAGE MO
2019-04-12 417-318-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 HOUSTON MO
2019-04-12 417-383-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 BUFFALO MO
2019-04-12 417-630-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 MARSHFIELD MO
2019-04-04 417-768-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 JOPLIN MO
2019-03-08 417-674-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CARTHAGE MO
2019-03-08 417-674-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CARTHAGE MO
2018-03-19 417-409-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2017-11-10 417-430-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2017-11-10 417-430-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2016-12-08 417-370-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2016-10-26 417-680-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 JOPLIN MO
2016-10-21 417-671-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 CASSVILLE MO
2016-08-16 417-307-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 BOLIVAR MO
2016-08-16 417-372-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 WESTPLAINS MO
2016-08-16 417-485-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 OZARK MO
2016-06-23 417-295-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LAMAR MO
2016-05-06 417-210-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2016-01-13 417-374-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 NIXA MO
2014-09-24 417-351-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2014-06-10 417-695-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 BILLINGS MO
2014-02-25 417-208-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 JOPLIN MO
2013-07-26 417-450-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2013-04-19 417-680-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 JOPLIN MO
2013-03-29 417-392-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 WEBB CITY MO
2012-12-18 417-281-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LOCKWOOD MO
2012-12-18 417-344-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LEBANON MO
2012-12-18 417-393-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MONETT MO
2012-10-16 417-297-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 BRANSON MO
2012-09-28 417-456-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 NEOSHO MO
2012-09-11 417-381-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 NEVADA MO
2012-02-23 417-414-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2010-03-04 417-313-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CARTHAGE MO
2009-11-03 417-616-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2009-08-13 417-233-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 REPUBLIC MO

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.