NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 608
ONVOY, LLC - WI 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 4
NEW CINGULAR WIRELESS PCS, LLC - IL 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
2021-02-04 608-407-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C DODGEVILLE WI
2021-02-04 608-407-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C DODGEVILLE WI
2021-02-04 608-901-3XXX 3000–3999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F JANESVILLE WI
2021-02-02 608-820-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MIDDLETON WI
2021-02-01 608-901-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2021-02-01 608-901-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2021-01-26 608-912-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C DE FOREST WI
2021-01-26 608-912-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C DE FOREST WI
2021-01-25 608-527-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C NEW GLARUS WI
2021-01-25 608-909-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 OREGON WI
2021-01-18 608-686-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C PORTAGE WI
2021-01-18 608-686-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C PORTAGE WI
2021-01-18 608-686-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C PORTAGE WI
2020-12-31 608-722-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MADISON WI
2020-12-31 608-722-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MADISON WI
2020-12-31 608-722-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MADISON WI
2020-12-29 608-470-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2020-12-29 608-806-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C FAIRPLAY WI
2020-12-22 608-394-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LA CROSSE WI
2020-12-22 608-453-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C SUNPRAIRIE WI
2020-12-22 608-453-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C SUNPRAIRIE WI
2020-12-22 608-453-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C SUNPRAIRIE WI
2020-12-22 608-453-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C SUNPRAIRIE WI
2020-12-22 608-454-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C OREGON WI
2020-12-22 608-454-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C OREGON WI
2020-12-22 608-454-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C OREGON WI
2020-12-22 608-454-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C OREGON WI
2020-12-22 608-456-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C ORFORDVL WI
2020-12-22 608-456-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C ORFORDVL WI
2020-12-22 608-456-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C ORFORDVL WI
2020-12-22 608-456-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C ORFORDVL WI
2020-12-22 608-470-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2020-12-22 608-594-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C PLAIN WI
2020-12-22 608-594-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C PLAIN WI
2020-12-22 608-594-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C PLAIN WI
2020-12-22 608-594-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C PLAIN WI
2020-12-22 608-694-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2020-12-22 608-694-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2020-12-22 608-694-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C COTTAGEGRV WI
2020-12-16 608-200-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F BELOIT WI
2020-12-16 608-360-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C LOGANVILLE WI
2020-12-16 608-360-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C LOGANVILLE WI
2020-12-16 608-360-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C LOGANVILLE WI
2020-12-16 608-360-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C LOGANVILLE WI
2020-12-16 608-389-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BARABOO WI
2020-12-16 608-389-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C BARABOO WI
2020-12-16 608-389-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C BARABOO WI
2020-12-16 608-389-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BARABOO WI
2020-12-16 608-460-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C SAUK CITY WI
2020-12-16 608-460-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C SAUK CITY WI

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.