NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-01-08 360-854-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2021-01-08 360-854-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2021-01-07 360-583-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2021-01-04 360-583-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2021-01-04 360-583-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2021-01-04 360-583-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2020-12-30 360-432-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J SHELTON WA
2020-12-30 360-767-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J CHEHALIS WA
2020-12-30 360-933-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J WHATCOMCTY WA
2020-12-17 360-395-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2020-12-17 360-395-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2020-12-16 360-316-3XXX 3000–3999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PTTOWNSEND WA
2020-12-16 360-727-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RIDGEFIELD WA
2020-12-10 360-206-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2020-11-25 360-206-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F CENTRALIA WA
2020-11-25 360-585-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F CRYSTAL MT WA
2020-11-25 360-702-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BATTLEGRND WA
2020-11-25 360-729-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F VANCOUVER WA
2020-11-25 360-780-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E FORKS WA
2020-11-25 360-780-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E FORKS WA
2020-11-25 360-916-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F LONGVIEW WA
2020-11-23 360-942-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WA 6270 SOUTH BEND WA
2020-11-20 360-472-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2020-11-16 360-776-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E BUCKLEY WA
2020-11-16 360-776-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E BUCKLEY WA
2020-11-15 360-299-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2020-11-15 360-638-5XXX 5000–5999Assigned NUSO, LLC 478J KINGSTON WA
2020-11-13 360-371-6XXX 6000–6999Assigned TELNYX LLC 073H WHATCOMCTY WA
2020-11-12 360-251-0XXX 0000–0999Assigned TELNYX LLC 073H MARYSVILLE WA
2020-11-12 360-299-5XXX 5000–5999Assigned TELNYX LLC 073H MT VERNON WA
2020-11-12 360-517-7XXX 7000–7999Assigned TELNYX LLC 073H SILVERDALE WA
2020-11-06 360-670-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PT ANGELES WA
2020-10-25 360-504-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PT ANGELES WA
2020-10-25 360-594-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F WHATCOMCTY WA
2020-10-25 360-745-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PORTLUDLOW WA
2020-10-25 360-916-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2020-10-22 360-592-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F WHATCOMCTY WA
2020-10-22 360-935-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F WHATCOMCTY WA
2020-10-21 360-995-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-10-21 360-995-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-10-21 360-995-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2020-10-20 360-206-6XXX 6000–6999Assigned ASTOUND BROADBAND, LLC - WA 937F CENTRALIA WA
2020-10-20 360-230-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2020-10-20 360-230-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2020-10-20 360-535-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2020-10-20 360-583-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2020-10-20 360-583-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2020-10-20 360-583-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2020-10-20 360-615-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E ENUMCLAW WA
2020-10-20 360-615-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E ENUMCLAW WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.