NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2008-03-20 616-803-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DUTTON MI
2008-03-13 616-884-2XXX 2000–2999Assigned TELNET WORLDWIDE, INC. 817J ROCKFORD MI
2008-03-06 616-570-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2008-03-06 616-570-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2008-02-26 616-298-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2008-02-15 616-848-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2008-02-11 616-570-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2008-02-07 616-516-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2008-02-07 616-516-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2008-02-07 616-570-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2008-02-07 616-570-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2008-02-07 616-803-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E DUTTON MI
2008-02-06 616-606-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SPARTA MI
2008-01-17 616-884-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROCKFORD MI
2008-01-11 616-298-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HOLLAND MI
2008-01-10 616-987-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E LOWELL MI
2007-12-17 616-994-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2007-12-14 616-335-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2007-12-14 616-666-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-12-14 616-666-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-12-07 616-335-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E HOLLAND MI
2007-11-27 616-284-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2007-11-27 616-607-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J GRANDHAVEN MI
2007-11-21 616-546-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2007-11-21 616-546-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2007-11-16 616-824-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GREENVILLE MI
2007-11-08 616-730-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BYRON CTR MI
2007-10-30 616-666-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-10-30 616-666-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-10-30 616-666-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2007-10-26 616-284-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2007-10-15 616-284-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-10-15 616-284-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-10-15 616-796-7XXX 7000–7999Assigned 123.NET, LLC 2550 HOLLAND MI
2007-09-12 616-365-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2007-09-12 616-827-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2007-08-30 616-635-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-08-29 616-796-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2007-08-29 616-796-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2007-08-24 616-608-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-08-24 616-608-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-08-24 616-608-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-08-24 616-608-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-08-24 616-608-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-08-24 616-635-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2007-08-20 616-666-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2007-08-13 616-685-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-08-13 616-685-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2007-08-03 616-730-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J BYRON CTR MI
2007-07-05 616-863-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ROCKFORD MI

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.