NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 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 734
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 1
EXIANT COMMUNICATIONS 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
2019-01-08 734-280-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2018-12-19 734-325-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVILLE MI
2018-12-11 734-661-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2018-12-04 734-600-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NEWPORT MI
2018-12-03 734-412-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-12-03 734-412-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-12-03 734-412-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-12-03 734-412-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-29 734-294-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BELLEVILLE MI
2018-11-28 734-373-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-28 734-373-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-28 734-373-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-28 734-373-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-28 734-373-6XXX 6000–6999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-28 734-373-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D ANN ARBOR MI
2018-11-09 734-856-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAMBERTVL MI
2018-10-24 734-373-3XXX 3000–3999Assigned METROPCS, INC. 5562 ANN ARBOR MI
2018-10-24 734-373-4XXX 4000–4999Assigned METROPCS, INC. 5562 ANN ARBOR MI
2018-10-22 734-373-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-373-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-22 734-450-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2018-10-10 734-868-4XXX 4000–4999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G IDA MI
2018-10-05 734-562-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHELSEA MI
2018-10-05 734-855-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2018-10-03 734-349-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2018-10-03 734-447-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2018-10-01 734-688-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G PINCKNEY MI
2018-10-01 734-800-2XXX 2000–2999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ANN ARBOR MI
2018-10-01 734-802-3XXX 3000–3999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G YPSILANTI MI
2018-09-26 734-600-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NEWPORT MI
2018-09-18 734-410-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2018-09-17 734-210-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2018-09-17 734-210-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2018-09-17 734-346-3XXX 3000–3999Assigned METROPCS, INC. 5562 TRENTON MI
2018-09-17 734-359-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G PLYMOUTH MI
2018-09-17 734-371-3XXX 3000–3999Assigned METROPCS, INC. 5562 DUNDEE MI
2018-09-06 734-826-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E IDA MI
2018-08-20 734-346-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2018-08-20 734-410-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MONROE MI
2018-08-13 734-884-0XXX 0000–0999Assigned AIRESPRING, INC. 996H LIVONIA MI
2018-07-13 734-371-9XXX 9000–9999Assigned METROPCS, INC. 5562 DUNDEE 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.