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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-10-20 360-837-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CAMAS WA
2020-10-20 360-837-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E CAMAS WA
2020-10-20 360-845-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2020-10-20 360-845-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2020-10-20 360-916-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2020-10-20 360-916-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2020-10-20 360-926-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2020-10-20 360-939-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2020-10-20 360-997-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E BLACKDIMND WA
2020-10-20 360-997-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E BLACKDIMND WA
2020-10-15 360-488-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2020-10-08 360-206-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2020-10-08 360-206-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2020-10-05 360-233-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BELFAIR WA
2020-10-02 360-360-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-526-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-526-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-526-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-729-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-729-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-729-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-729-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2020-10-02 360-812-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-02 360-812-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2020-10-01 360-217-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SNOHOMISH WA
2020-10-01 360-622-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2020-09-30 360-935-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2020-09-29 360-382-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E PTTOWNSEND WA
2020-09-29 360-382-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E PTTOWNSEND WA
2020-09-29 360-912-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E PT ANGELES WA
2020-09-24 360-722-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2020-09-24 360-722-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2020-09-24 360-774-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2020-09-18 360-634-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-09-18 360-634-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-09-18 360-634-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-09-15 360-230-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F MT VERNON WA
2020-09-14 360-543-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D WHATCOMCTY WA
2020-09-14 360-656-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D WHATCOMCTY WA
2020-09-08 360-996-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WA 6270 CHEHALIS WA
2020-09-04 360-583-1XXX 1000–1999Assigned NUSO, LLC 478J VANCOUVER WA
2020-09-04 360-634-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D OLYMPIA WA
2020-09-04 360-634-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D OLYMPIA WA
2020-09-03 360-616-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2020-09-03 360-616-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2020-09-01 360-634-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-09-01 360-634-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-09-01 360-634-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-09-01 360-634-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2020-08-27 360-634-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OLYMPIA 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.