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
2011-09-26 601-398-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-26 601-398-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J JACKSON MS
2011-09-21 601-602-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2011-09-15 601-298-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E CARTHAGE MS
2011-09-15 601-522-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E COLUMBIA MS
2011-09-15 601-568-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E PHILA MS
2011-09-15 601-691-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E CANTON MS
2011-09-13 601-342-3XXX 3000–3999Assigned METROPCS, INC. 5562 LAUREL MS
2011-09-09 601-633-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 COLUMBIA MS
2011-09-06 601-697-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOREST MS
2011-08-17 601-640-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SEMINARY MS
2011-08-10 601-391-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CANTON MS
2011-08-10 601-401-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E FLORA MS
2011-08-09 601-514-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LUCEDALE MS
2011-08-01 601-335-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E LAUREL MS
2011-08-01 601-565-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E LIBERTY MS
2011-08-01 601-600-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E MCCOMB MS
2011-07-08 601-207-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MERIDIAN MS
2011-07-08 601-357-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEWTONHKRY MS
2011-07-08 601-451-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FAYETTE MS
2011-07-08 601-452-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TAYLORSVL MS
2011-07-08 601-557-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C QUITMAN MS
2011-07-08 601-568-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PHILA MS
2011-07-08 601-643-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C WESSON MS
2011-07-08 601-759-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PELAHATCHI MS
2011-07-08 601-806-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MONTICELLO MS
2011-07-08 601-817-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C ELLISVILLE MS
2011-07-08 601-822-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C RALEIGH MS
2011-07-08 601-837-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C COLLINS MS
2011-07-08 601-851-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TOOMSUBA MS
2011-07-08 601-852-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C EDWARDS MS
2011-07-08 601-864-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MORTON MS
2011-07-08 601-878-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C TERRY MS
2011-07-08 601-912-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C RICHTON MS
2011-07-08 601-975-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MIZE MS
2011-06-29 601-336-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C HATTIESBG MS
2011-06-29 601-633-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C COLUMBIA MS
2011-06-24 601-643-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 WESSON MS
2011-06-16 601-602-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HATTIESBG MS
2011-06-08 601-564-6XXX 6000–6999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 FOREST MS
2011-05-31 601-265-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E BROOKHAVEN MS
2011-05-31 601-324-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E MCCOMB MS
2011-05-31 601-427-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E MADISON MS
2011-05-31 601-566-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E JACKSON MS
2011-05-31 601-724-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E BRANDON MS
2011-05-31 601-806-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E MONTICELLO MS
2011-05-31 601-908-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E OBADIAH MS
2011-05-31 601-965-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E JACKSON MS
2011-05-27 601-202-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E BOLTON MS
2011-05-27 601-207-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MS 992E MERIDIAN 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.