NumberResearch Membership · Data 09/27/2026

Recent thousands-block assignments

3,988 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/27/2026

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
NEW CINGULAR WIRELESS PCS, LLC - DC 300
NEW CINGULAR WIRELESS PCS, LLC - IL 255
EXIANT COMMUNICATIONS LLC 245
ONVOY, LLC - CA 144
INTRADO COMMUNICATIONS, LLC 134
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
2026-01-06 541-716-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HOOD RIVER OR
2026-01-06 562-701-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2026-01-06 636-298-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MANCHESTER MO
2026-01-06 660-312-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 KNOBNOSTER MO
2026-01-06 667-484-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WESTMINSTR MD
2026-01-06 732-880-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 MONMTH JCT NJ
2026-01-06 805-904-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARROYOGRND CA
2026-01-06 808-663-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LIHUE HI
2026-01-06 808-663-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LIHUE HI
2026-01-06 816-962-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BLUE SPG MO
2026-01-06 820-432-0XXX 0000–0999Assigned TELNYX LLC 073H NEWBURYPRK CA
2026-01-06 907-300-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AK 9413 ANCHORAGE AK
2026-01-06 907-300-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AK 9413 ANCHORAGE AK
2026-01-06 925-441-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-01-06 925-554-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-01-06 925-554-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-01-06 948-241-7XXX 7000–7999Assigned TELNYX LLC 073H NRFOLKZON3 VA
2026-01-06 949-881-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2026-01-06 949-948-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2026-01-06 949-948-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2026-01-06 951-649-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2026-01-06 951-649-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLINGTON CA
2026-01-06 959-275-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 FARMINGTON CT
2026-01-06 973-654-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 CALDWELL NJ
2026-01-05 207-392-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ANDOVER ME
2026-01-05 207-394-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ALTON ME
2026-01-05 207-609-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BIDDEFORD ME
2026-01-05 207-876-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 GUILFORD ME
2026-01-05 220-257-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION OH
2026-01-05 276-204-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MEADOWSDAN VA
2026-01-05 276-895-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 BLUEFIELD VA
2026-01-05 302-279-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 MIDDLETOWN DE
2026-01-05 318-463-0XXX 0000–0999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OAKDALE LA
2026-01-05 318-463-2XXX 2000–2999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OAKDALE LA
2026-01-05 318-774-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RAYVILLE LA
2026-01-05 329-333-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MAHOPAC NY
2026-01-05 339-466-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2026-01-05 352-864-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY FL
2026-01-05 363-529-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2026-01-05 363-529-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2026-01-05 478-672-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROBERTA GA
2026-01-05 502-998-5XXX 5000–5999Assigned POWERTEL KENTUCKY LICENSES, INC. 365C BARDSTOWN KY
2026-01-05 505-602-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANTA FE NM
2026-01-05 516-673-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2026-01-05 559-529-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L TIPTON CA
2026-01-05 564-266-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F VANCOUVER WA
2026-01-05 567-490-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ASHLAND OH
2026-01-05 585-790-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2026-01-05 603-325-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 NEW BOSTON NH
2026-01-05 603-513-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.