NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 567
ONVOY, LLC - OH 2
EXIANT COMMUNICATIONS LLC 2
NEW CINGULAR WIRELESS PCS, LLC - IL 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 1
INTRADO COMMUNICATIONS, 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
2023-10-04 567-427-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
2023-10-04 567-427-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
2023-09-29 567-276-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C BRYAN OH
2023-09-29 567-276-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C BRYAN OH
2023-09-29 567-276-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C BRYAN OH
2023-09-29 567-276-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C BRYAN OH
2023-09-29 567-295-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C KENTON OH
2023-09-29 567-295-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C KENTON OH
2023-09-29 567-295-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C KENTON OH
2023-09-29 567-295-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C KENTON OH
2023-09-29 567-305-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C KENTON OH
2023-09-29 567-337-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C BRYAN OH
2023-09-29 567-369-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C HAYESVILLE OH
2023-09-29 567-369-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C HAYESVILLE OH
2023-09-29 567-746-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C BELLEVUE OH
2023-09-29 567-746-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C BELLEVUE OH
2023-09-26 567-428-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C PIONEER OH
2023-09-26 567-431-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CRESTLINE OH
2023-09-25 567-330-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C ASHLAND OH
2023-09-25 567-330-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C ASHLAND OH
2023-09-21 567-487-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F GREEN SPG OH
2023-09-15 567-427-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C LIMA OH
2023-09-15 567-427-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C LIMA OH
2023-09-15 567-427-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C LIMA OH
2023-09-12 567-425-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANSFIELD OH
2023-09-12 567-425-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANSFIELD OH
2023-09-11 567-349-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C HELENA OH
2023-09-11 567-362-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C BETTSVILLE OH
2023-09-11 567-366-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C PT CLINTON OH
2023-09-11 567-367-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C REPUBLIC OH
2023-09-11 567-446-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C NEY OH
2023-09-11 567-462-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CLYDE OH
2023-09-11 567-465-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C BLOOMVILLE OH
2023-09-11 567-485-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CHATFIELD OH
2023-09-11 567-667-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C EDON OH
2023-09-11 567-677-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C VAN BUREN OH
2023-09-11 567-767-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C ANTWERP OH
2023-09-11 567-842-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C LAKEVILLE OH
2023-09-11 567-895-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C SAVANNAH OH
2023-09-01 567-422-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-09-01 567-422-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANSFIELD OH
2023-08-31 567-577-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K ADARIO OH

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.