NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 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
2021-05-17 734-510-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ANN ARBOR MI
2021-05-17 734-607-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LAMBERTVL MI
2021-05-17 734-766-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ERIE MI
2021-05-17 734-774-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H IDA MI
2021-05-17 734-865-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BELLEVILLE MI
2021-05-13 734-337-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J YPSILANTI MI
2021-05-05 734-463-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D PLYMOUTH MI
2021-05-05 734-463-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D PLYMOUTH MI
2021-05-05 734-521-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D LIVONIA MI
2021-05-05 734-884-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D LIVONIA MI
2021-04-23 734-268-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H DEXTER MI
2021-04-23 734-268-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H DEXTER MI
2021-04-07 734-865-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BELLEVILLE MI
2021-04-05 734-599-9XXX 9000–9999Assigned FRACTEL, LLC 965H LOSTPNNSUL MI
2021-04-05 734-877-7XXX 7000–7999Assigned FRACTEL, LLC 965H WAYNE MI
2021-04-05 734-933-3XXX 3000–3999Assigned FRACTEL, LLC 965H WYANDOTTE MI
2021-04-01 734-443-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J NEW BOSTON MI
2021-04-01 734-719-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G CHELSEA MI
2021-03-16 734-322-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2021-03-01 734-510-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ANN ARBOR MI
2021-03-01 734-510-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ANN ARBOR MI
2021-02-25 734-361-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C MAYBEE MI
2021-02-25 734-361-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MAYBEE MI
2021-02-25 734-499-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C ROMULUS MI
2021-02-25 734-499-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROMULUS MI
2021-02-25 734-499-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ROMULUS MI
2021-02-25 734-499-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ROMULUS MI
2021-02-11 734-496-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ANN ARBOR MI
2021-02-03 734-554-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WILLIS MI
2021-02-03 734-610-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C WILLIS MI
2021-02-03 734-766-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ERIE MI
2021-02-03 734-766-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ERIE MI
2021-01-29 734-977-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SALINE MI
2021-01-29 734-977-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SALINE MI
2021-01-20 734-581-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 MONROE MI
2021-01-12 734-554-7XXX 7000–7999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G WILLIS MI
2021-01-11 734-774-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C IDA MI
2021-01-11 734-774-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C IDA MI
2021-01-07 734-704-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MANCHESTER MI
2021-01-07 734-704-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MANCHESTER MI
2021-01-07 734-704-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MANCHESTER MI
2021-01-07 734-704-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MANCHESTER MI
2021-01-06 734-889-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C NEW BOSTON MI
2021-01-06 734-889-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C NEW BOSTON MI
2021-01-06 734-889-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C NEW BOSTON MI
2021-01-04 734-271-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CARLETON MI
2021-01-04 734-371-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2021-01-04 734-371-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2021-01-04 734-371-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2021-01-04 734-583-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C BELLEVILLE 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.