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
2020-01-15 360-946-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2020-01-09 360-230-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2020-01-09 360-919-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2020-01-08 360-506-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2019-12-30 360-386-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARYSVILLE WA
2019-12-26 360-946-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2019-12-23 360-946-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F VANCOUVER WA
2019-12-20 360-946-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2019-12-19 360-572-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE WA
2019-12-17 360-389-4XXX 4000–4999Assigned TELNYX LLC 073H WHATCOMCTY WA
2019-12-17 360-484-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NASELLE WA
2019-12-17 360-498-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MORTON WA
2019-12-13 360-881-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 KINGSTON WA
2019-12-05 360-316-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2019-12-05 360-375-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2019-11-22 360-585-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F CRYSTAL MT WA
2019-11-22 360-667-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BATTLEGRND WA
2019-11-22 360-743-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D ABERDEEN WA
2019-11-07 360-404-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2019-10-16 360-228-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2019-10-07 360-422-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2019-10-07 360-995-0XXX 0000–0999Assigned TELNYX LLC 073H OLYMPIA WA
2019-10-03 360-916-0XXX 0000–0999Assigned INTRADO COMMUNICATIONS, LLC 834C LONGVIEW WA
2019-10-01 360-309-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIDGEFIELD WA
2019-10-01 360-995-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2019-10-01 360-995-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2019-09-27 360-369-1XXX 1000–1999Assigned ASTOUND BROADBAND, LLC - WA 937F BATTLEGRND WA
2019-09-27 360-409-8XXX 8000–8999Assigned ASTOUND BROADBAND, LLC - WA 937F CAMAS WA
2019-09-27 360-717-4XXX 4000–4999Assigned ASTOUND BROADBAND, LLC - WA 937F HOODSPORT WA
2019-09-27 360-732-3XXX 3000–3999Assigned ASTOUND BROADBAND, LLC - WA 937F CHIMACMCTR WA
2019-09-27 360-745-5XXX 5000–5999Assigned ASTOUND BROADBAND, LLC - WA 937F PORTLUDLOW WA
2019-09-27 360-765-1XXX 1000–1999Assigned ASTOUND BROADBAND, LLC - WA 937F HOOD CANAL WA
2019-09-27 360-940-8XXX 8000–8999Assigned ASTOUND BROADBAND, LLC - WA 937F COPALIS WA
2019-09-18 360-233-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2019-09-18 360-854-6XXX 6000–6999Assigned ASTOUND BROADBAND, LLC - WA 937F MT VERNON WA
2019-09-03 360-233-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BELFAIR WA
2019-08-30 360-916-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2019-08-30 360-994-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POULSBO WA
2019-08-26 360-228-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2019-08-23 360-506-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2019-08-15 360-916-9XXX 9000–9999Assigned METROPCS, INC. 5562 LONGVIEW WA
2019-08-06 360-410-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2019-08-06 360-410-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2019-07-25 360-210-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2019-07-18 360-873-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2019-07-18 360-873-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2019-07-12 360-809-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PT ANGELES WA
2019-07-05 360-228-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2019-06-28 360-295-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E VADER WA
2019-06-21 360-672-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR 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.