NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
Clear Download CSV ↓
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 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.