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 601
TELEPORT COMMUNICATIONS AMERICA MS - LLC 58
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
2025-06-09 601-387-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2025-06-09 601-387-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2025-06-09 601-387-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2025-06-09 601-387-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2025-06-09 601-387-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2025-04-18 601-305-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C HATTIESBG MS
2022-07-21 601-860-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C PRENTISS MS
2020-10-23 601-881-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C LEAKESVL MS
2020-10-20 601-980-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C LIBERTY MS
2020-07-27 601-374-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C RALEIGH MS
2020-07-27 601-516-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C SUMRALL MS
2020-07-27 601-912-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C RICHTON MS
2020-07-22 601-688-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C LUMBERTON MS
2020-07-21 601-647-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C CRYSTALSPG MS
2020-07-21 601-779-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C WOODVILLE MS
2020-07-21 601-806-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C MONTICELLO MS
2020-07-21 601-841-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C GLOSTER MS
2020-07-21 601-872-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C POPLARVL MS
2020-07-21 601-935-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C HEIDELBERG MS
2019-09-10 601-893-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C FLORENCE MS
2019-07-30 601-821-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C NVALAIRSTA MS
2018-11-09 601-640-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C SEMINARY MS
2018-08-24 601-808-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C MENDENHALL MS
2018-01-24 601-747-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C PORTGIBSON MS
2016-11-04 601-452-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C TAYLORSVL MS
2016-10-20 601-586-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2016-08-19 601-574-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C HAZLEHURST MS
2016-08-11 601-282-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C MERIDIAN MS
2016-05-26 601-526-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C RAYMOND MS
2016-04-25 601-755-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C WAYNESBORO MS
2016-03-18 601-854-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C PELAHATCHI MS
2016-02-18 601-921-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C COLLINS MS
2016-01-07 601-514-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C LUCEDALE MS
2015-05-26 601-900-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C FOREST MS
2014-07-11 601-203-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2014-07-11 601-203-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON MS
2013-12-16 601-348-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C PURVIS MS
2013-09-25 601-761-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C CANTON MS
2013-08-19 601-385-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C WIGGINS MS
2013-04-18 601-460-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C CLINTON MS
2013-04-18 601-627-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C NEWTONHKRY MS
2013-04-18 601-867-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C MAGEE MS
2013-04-18 601-897-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C NATCHEZ MS
2013-04-01 601-298-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C CARTHAGE MS
2013-03-26 601-389-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C PHILA MS
2012-12-04 601-996-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C MCCOMB MS
2011-05-24 601-817-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C ELLISVILLE MS
2010-05-05 601-803-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C TYLERTOWN MS
2009-09-17 601-265-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C BROOKHAVEN MS
2009-05-06 601-778-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C LAUREL MS

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.