NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 616
NEW CINGULAR WIRELESS PCS, LLC - IL 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-07-03 616-685-1XXX 1000–1999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-2XXX 2000–2999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-3XXX 3000–3999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-4XXX 4000–4999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-5XXX 5000–5999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-6XXX 6000–6999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-7XXX 7000–7999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-07-03 616-685-8XXX 8000–8999Assigned MICHIGAN BELL TEL CO 9323 GRAND RPDS MI
2007-06-28 616-594-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2007-06-28 616-824-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2007-06-05 616-350-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-06-05 616-551-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-06-05 616-551-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-06-05 616-570-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-05-21 616-551-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2007-05-21 616-551-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2007-05-18 616-570-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-05-18 616-570-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-05-08 616-296-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRANDHAVEN MI
2007-05-04 616-551-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-05-04 616-551-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-05-02 616-928-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2007-05-02 616-928-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2007-04-12 616-788-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2007-04-11 616-205-6XXX 6000–6999Assigned METROPCS, INC. 5562 SPARTA MI
2007-04-11 616-636-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAND LAKE MI
2007-04-02 616-777-3XXX 3000–3999Assigned 123.NET, LLC 2550 HUDSONVL MI
2007-03-29 616-350-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-350-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-350-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-350-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-350-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-350-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-350-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-03-29 616-953-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ZEELAND MI
2007-03-08 616-277-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BYRON CTR MI
2007-03-08 616-277-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BYRON CTR MI
2007-03-08 616-755-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 IONIA MI
2007-02-27 616-608-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-02-27 616-752-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-02-27 616-819-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-02-27 616-819-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-02-27 616-819-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-02-27 616-980-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-02-13 616-808-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-02-09 616-726-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-02-09 616-824-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2007-02-09 616-848-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2007-02-09 616-848-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2007-02-06 616-717-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS 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.