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
2022-09-19 360-766-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2022-09-15 360-742-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2022-09-14 360-300-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E FORKS WA
2022-09-14 360-300-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E FORKS WA
2022-09-14 360-300-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E FORKS WA
2022-09-14 360-803-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E RIDGEFIELD WA
2022-09-14 360-803-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E RIDGEFIELD WA
2022-09-14 360-803-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E RIDGEFIELD WA
2022-09-14 360-803-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E RIDGEFIELD WA
2022-09-14 360-997-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E BLACKDIMND WA
2022-09-14 360-997-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E BLACKDIMND WA
2022-09-14 360-997-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BLACKDIMND WA
2022-09-12 360-468-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2022-09-12 360-468-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2022-09-06 360-215-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E PORTLUDLOW WA
2022-09-02 360-505-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E GRAYHARBCO WA
2022-08-26 360-614-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 HOODSPORT WA
2022-08-25 360-302-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PTTOWNSEND WA
2022-08-23 360-655-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J EATONVILLE WA
2022-08-17 360-960-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 YELM WA
2022-08-11 360-375-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2022-08-11 360-375-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2022-08-09 360-358-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SHELTON WA
2022-08-09 360-358-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SHELTON WA
2022-08-06 360-370-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2022-08-06 360-783-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E LONG BEACH WA
2022-08-06 360-822-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2022-08-04 360-803-0XXX 0000–0999Assigned TELNYX LLC 073H RIDGEFIELD WA
2022-07-29 360-564-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POULSBO WA
2022-07-20 360-821-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2022-07-20 360-821-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2022-07-20 360-821-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2022-07-13 360-245-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E CURTIS WA
2022-06-17 360-401-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SHELTON WA
2022-06-17 360-557-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CHEHALIS WA
2022-06-17 360-897-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SO PRAIRIE WA
2022-06-09 360-472-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2022-06-09 360-472-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2022-06-08 360-544-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J OAK HARBOR WA
2022-06-01 360-291-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E CURTIS WA
2022-05-27 360-554-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PTTOWNSEND WA
2022-05-13 360-612-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2022-05-05 360-229-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SHELTON WA
2022-04-26 360-214-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONG BEACH WA
2022-04-22 360-472-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2022-04-21 360-655-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 EATONVILLE WA
2022-04-18 360-390-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2022-04-18 360-390-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2022-04-18 360-390-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2022-04-13 360-291-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E CURTIS 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.