NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 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, last 30 days — NPA 810
NEW CINGULAR WIRELESS PCS, LLC - IL 13
EXIANT COMMUNICATIONS 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
2005-11-07 810-355-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BRIGHTON MI
2005-10-31 810-624-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-10-27 810-637-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ST CLAIR MI
2005-10-20 810-768-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-10-10 810-250-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-10-03 810-624-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-09-23 810-250-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-09-21 810-630-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SWARTZ CRK MI
2005-09-16 810-835-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-09-12 810-272-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2005-09-01 810-597-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-08-26 810-342-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-08-10 810-356-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2005-08-05 810-630-5XXX 5000–5999Assigned TELNET WORLDWIDE, INC. 817J SWARTZ CRK MI
2005-08-05 810-673-2XXX 2000–2999Assigned TELNET WORLDWIDE, INC. 817J ALMONT MI
2005-08-03 810-201-2XXX 2000–2999Assigned TELNET WORLDWIDE, INC. 817J PT SANILAC MI
2005-08-03 810-344-3XXX 3000–3999Assigned TELNET WORLDWIDE, INC. 817J GRANDBLANC MI
2005-08-03 810-458-2XXX 2000–2999Assigned TELNET WORLDWIDE, INC. 817J LINDEN MI
2005-08-03 810-488-8XXX 8000–8999Assigned TELNET WORLDWIDE, INC. 817J PORT HURON MI
2005-08-03 810-544-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J CARSONVL MI
2005-08-03 810-678-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J METAMORA MI
2005-08-03 810-683-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J IMLAY CITY MI
2005-07-14 810-272-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J LAPEER MI
2005-07-14 810-344-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GRANDBLANC MI
2005-07-14 810-355-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BRIGHTON MI
2005-07-14 810-420-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MARINECITY MI
2005-07-11 810-299-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRIGHTON MI
2005-07-07 810-342-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2005-06-29 810-201-1XXX 1000–1999Assigned ACD TELECOM, INC. - MI 3535 PT SANILAC MI
2005-06-29 810-267-5XXX 5000–5999Assigned ACD TELECOM, INC. - MI 3535 LAPEER MI
2005-06-29 810-269-1XXX 1000–1999Assigned ACD TELECOM, INC. - MI 3535 SANDUSKY MI
2005-06-29 810-327-4XXX 4000–4999Assigned ACD TELECOM, INC. - MI 3535 JEDDO MI
2005-06-29 810-367-5XXX 5000–5999Assigned ACD TELECOM, INC. - MI 3535 SMITHS CRK MI
2005-06-29 810-374-1XXX 1000–1999Assigned ACD TELECOM, INC. - MI 3535 OTISVILLE MI
2005-06-29 810-377-4XXX 4000–4999Assigned ACD TELECOM, INC. - MI 3535 LEXINGTON MI
2005-06-29 810-387-6XXX 6000–6999Assigned ACD TELECOM, INC. - MI 3535 YALE MI
2005-06-29 810-388-3XXX 3000–3999Assigned ACD TELECOM, INC. - MI 3535 PORT HURON MI
2005-06-29 810-420-3XXX 3000–3999Assigned ACD TELECOM, INC. - MI 3535 MARINECITY MI
2005-06-29 810-458-1XXX 1000–1999Assigned ACD TELECOM, INC. - MI 3535 LINDEN MI
2005-06-29 810-535-1XXX 1000–1999Assigned ACD TELECOM, INC. - MI 3535 MEMPHIS MI
2005-06-29 810-641-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 SNOVER MI
2005-06-29 810-655-1XXX 1000–1999Assigned ACD TELECOM, INC. - MI 3535 RANKIN MI
2005-06-29 810-678-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 METAMORA MI
2005-06-29 810-683-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 IMLAY CITY MI
2005-06-29 810-688-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 NORTH BRCH MI
2005-06-29 810-991-6XXX 6000–6999Assigned ACD TELECOM, INC. - MI 3535 HARTLAND MI
2005-06-27 810-209-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 BYRON MI
2005-06-27 810-315-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 DRYDEN MI
2005-06-27 810-324-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 AVOCA MI
2005-06-27 810-325-0XXX 0000–0999Assigned ACD TELECOM, INC. - MI 3535 GOODELLS MI

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.