NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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, last 30 days — NPA 601
ONVOY, LLC - MS 8
NEW CINGULAR WIRELESS PCS, LLC - GA 2
INTRADO COMMUNICATIONS, LLC 2
TELNYX LLC 1
AHOI LLC 1
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
2004-10-14 601-503-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-10-14 601-503-5XXX 5000–5999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-10-06 601-951-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2004-10-06 601-951-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2004-09-23 601-502-5XXX 5000–5999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-09-23 601-502-6XXX 6000–6999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-08-30 601-502-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-06-21 601-499-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MADISON MS
2004-06-21 601-885-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 UTICA MS
2004-06-18 601-852-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 EDWARDS MS
2004-06-18 601-879-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 FLORA MS
2004-06-11 601-790-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MADISON MS
2004-06-01 601-273-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 PICAYUNE MS
2004-06-01 601-866-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BOLTON MS
2004-06-01 601-878-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TERRY MS
2004-05-27 601-278-3XXX 3000–3999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-05-27 601-278-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-05-27 601-667-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 CANTON MS
2004-05-26 601-983-8XXX 8000–8999Assigned METROPCS, INC. 5562 JACKSON MS
2004-04-22 601-502-3XXX 3000–3999Assigned CELLULAR SOUTH, INC. 6581 JACKSON MS
2004-04-16 601-983-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2004-04-16 601-983-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 JACKSON MS
2004-04-02 601-983-9XXX 9000–9999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 JACKSON MS
2004-03-09 601-983-5XXX 5000–5999Assigned TELEPAK NETWORKS, INC. - MS 5278 JACKSON MS
2004-02-24 601-741-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 CARTHAGE MS
2004-02-23 601-405-0XXX 0000–0999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 JACKSON MS
2004-02-23 601-741-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 CARTHAGE MS
2004-02-17 601-767-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 JACKSON MS
2004-02-10 601-622-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2004-01-23 601-926-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CLINTON MS
2003-12-17 601-622-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2003-11-24 601-499-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MADISON MS
2003-10-07 601-622-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2003-09-26 601-879-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J FLORA MS
2003-09-11 601-622-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2003-08-07 601-741-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 CARTHAGE MS
— 601-499-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C MADISON MS
— 601-503-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C JACKSON 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.