NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 4
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
2019-05-06 608-909-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C OREGON WI
2019-05-06 608-975-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BELLEVILLE WI
2019-05-06 608-975-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C BELLEVILLE WI
2019-04-24 608-470-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C EDGERTON WI
2019-04-23 608-716-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2019-04-23 608-889-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C STOUGHTON WI
2019-04-23 608-889-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C STOUGHTON WI
2019-04-23 608-901-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2019-04-23 608-901-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2019-04-19 608-867-5XXX 5000–5999Assigned COMMIO, LLC 939H MADISON WI
2019-04-11 608-602-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WAUNAKEE WI
2019-04-05 608-590-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MADISON WI
2019-04-05 608-615-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LA CROSSE WI
2019-03-29 608-927-0XXX 0000–0999Assigned TELNYX LLC 073H BELOIT WI
2019-03-15 608-927-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-15 608-927-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-15 608-927-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-15 608-927-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-15 608-927-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-15 608-927-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-13 608-688-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K COTTAGEGRV WI
2019-03-11 608-560-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 NECEDAH WI
2019-03-11 608-802-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-11 608-802-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-11 608-802-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-11 608-802-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-03-05 608-344-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TOMAH WI
2019-02-22 608-451-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BANGOR WI
2019-02-22 608-460-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K SAUK CITY WI
2019-02-11 608-765-2XXX 2000–2999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F RICHMOND WI
2019-02-11 608-901-0XXX 0000–0999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F JANESVILLE WI
2019-02-07 608-400-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2019-02-07 608-590-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2019-02-06 608-579-8XXX 8000–8999Assigned TDS METROCOM, LLC 520K MCFARLAND WI
2019-02-06 608-912-1XXX 1000–1999Assigned TDS METROCOM, LLC 520K DE FOREST WI
2019-01-31 608-431-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C FOUNTAINCY WI
2019-01-22 608-949-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2019-01-10 608-802-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-01-10 608-802-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-01-03 608-590-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2019-01-03 608-590-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2018-12-19 608-885-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 LANCASTER WI
2018-12-11 608-472-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 ADAMS WI
2018-12-11 608-573-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F POYNETTE WI
2018-11-28 608-490-9XXX 9000–9999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F EVANSVILLE WI
2018-11-26 608-590-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MADISON WI
2018-11-26 608-590-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C MADISON WI
2018-11-19 608-949-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MADISON WI
2018-11-19 608-949-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MADISON WI
2018-11-19 608-949-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MADISON 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.