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
2020-12-08 734-472-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2020-12-08 734-472-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2020-12-08 734-472-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2020-12-08 734-899-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2020-12-08 734-991-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2020-12-07 734-601-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2020-11-10 734-496-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2020-11-10 734-496-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2020-11-10 734-496-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2020-11-09 734-463-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2020-11-09 734-463-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2020-11-09 734-463-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2020-11-09 734-463-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2020-11-04 734-390-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2020-11-04 734-802-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2020-11-04 734-802-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2020-11-04 734-802-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2020-11-04 734-884-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2020-11-04 734-884-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2020-11-04 734-884-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2020-11-04 734-884-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2020-10-29 734-724-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DEXTER MI
2020-10-29 734-724-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DEXTER MI
2020-10-26 734-361-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C MAYBEE MI
2020-10-26 734-361-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C MAYBEE MI
2020-10-23 734-405-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2020-10-23 734-519-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2020-10-23 734-899-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2020-10-23 734-899-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2020-10-22 734-371-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2020-10-22 734-371-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2020-10-22 734-519-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2020-10-22 734-519-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2020-10-22 734-766-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ERIE MI
2020-10-22 734-766-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ERIE MI
2020-10-21 734-733-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CARLETON MI
2020-10-21 734-733-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CARLETON MI
2020-10-21 734-888-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C NOSYLVANIA MI
2020-10-21 734-888-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NOSYLVANIA MI
2020-10-16 734-280-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2020-10-15 734-447-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2020-10-15 734-447-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2020-10-15 734-807-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G TEMPERANCE MI
2020-10-15 734-928-4XXX 4000–4999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G PLYMOUTH MI
2020-10-06 734-404-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH MI
2020-09-29 734-371-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G DUNDEE MI
2020-08-26 734-519-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ANN ARBOR MI
2020-08-25 734-499-9XXX 9000–9999Assigned FRACTEL, LLC 965H ROMULUS MI
2020-08-25 734-966-3XXX 3000–3999Assigned FRACTEL, LLC 965H LOSTPNNSUL MI
2020-08-25 734-966-6XXX 6000–6999Assigned FRACTEL, LLC 965H LOSTPNNSUL 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.