NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 360
EXIANT COMMUNICATIONS LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 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
2021-08-25 360-800-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OLYMPIA WA
2021-08-18 360-288-8XXX 8000–8999Assigned FRACTEL, LLC 965H LKQUINAULT WA
2021-08-12 360-583-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2021-08-12 360-583-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2021-07-30 360-800-9XXX 9000–9999Assigned COMMIO, LLC 939H OLYMPIA WA
2021-07-29 360-447-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2021-07-29 360-800-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2021-07-29 360-800-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2021-07-29 360-800-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2021-07-29 360-800-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2021-07-29 360-800-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2021-07-06 360-861-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E ELMA WA
2021-07-06 360-861-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ELMA WA
2021-07-01 360-625-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F ENUMCLAW WA
2021-06-30 360-622-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2021-06-22 360-404-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MT VERNON WA
2021-06-18 360-445-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2021-06-18 360-445-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2021-06-15 360-552-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2021-06-15 360-552-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2021-05-28 360-206-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2021-05-28 360-284-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E ENUMCLAW WA
2021-05-28 360-284-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E ENUMCLAW WA
2021-05-28 360-291-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CURTIS WA
2021-05-28 360-291-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E CURTIS WA
2021-05-28 360-295-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E VADER WA
2021-05-28 360-300-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E FORKS WA
2021-05-28 360-300-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E FORKS WA
2021-05-28 360-302-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E PTTOWNSEND WA
2021-05-28 360-302-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E PTTOWNSEND WA
2021-05-28 360-369-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2021-05-28 360-369-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2021-05-28 360-370-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2021-05-28 360-370-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2021-05-28 360-447-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2021-05-28 360-447-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2021-05-28 360-447-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2021-05-28 360-467-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2021-05-28 360-467-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2021-05-28 360-467-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2021-05-28 360-502-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2021-05-28 360-502-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2021-05-28 360-505-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E GRAYHARBCO WA
2021-05-28 360-512-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2021-05-28 360-517-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2021-05-28 360-585-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E CRYSTAL MT WA
2021-05-28 360-587-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SKYKOMISH WA
2021-05-28 360-612-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2021-05-28 360-612-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2021-05-28 360-614-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E HOODSPORT WA

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.