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
2018-08-30 360-706-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2018-08-30 360-922-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2018-08-22 360-595-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2018-08-22 360-966-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2018-08-06 360-762-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2018-07-31 360-743-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ABERDEEN WA
2018-07-24 360-764-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2018-07-24 360-764-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2018-07-18 360-605-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2018-07-13 360-706-8XXX 8000–8999Assigned METROPCS, INC. 5562 OLYMPIA WA
2018-07-13 360-872-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 ORTING WA
2018-07-13 360-940-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COPALIS WA
2018-07-12 360-777-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LONG BEACH WA
2018-07-09 360-559-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2018-06-25 360-728-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2018-06-19 360-672-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OAK HARBOR WA
2018-06-13 360-899-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2018-05-31 360-559-7XXX 7000–7999Assigned METROPCS, INC. 5562 CENTRALIA WA
2018-05-24 360-839-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2018-05-23 360-559-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CENTRALIA WA
2018-05-22 360-309-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2018-05-22 360-404-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2018-05-09 360-723-4XXX 4000–4999Assigned METROPCS, INC. 5562 BATTLEGRND WA
2018-05-09 360-728-7XXX 7000–7999Assigned METROPCS, INC. 5562 BREMERTON WA
2018-05-01 360-383-1XXX 1000–1999Assigned NATIVE NETWORK, INC. 483H WHATCOMCTY WA
2018-04-24 360-585-3XXX 3000–3999Assigned QWEST CORPORATION 9638 CRYSTAL MT WA
2018-04-10 360-502-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE WA
2018-04-06 360-222-5XXX 5000–5999Assigned HD CARRIER LLC 321J SO WHIDBEY WA
2018-03-29 360-505-9XXX 9000–9999Assigned METROPCS, INC. 5562 GRAYHARBCO WA
2018-03-27 360-622-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2018-03-26 360-762-0XXX 0000–0999Assigned METROPCS, INC. 5562 LONGVIEW WA
2018-03-26 360-762-9XXX 9000–9999Assigned METROPCS, INC. 5562 LONGVIEW WA
2018-03-23 360-304-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHEHALIS WA
2018-03-23 360-517-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2018-03-21 360-854-1XXX 1000–1999Assigned METROPCS, INC. 5562 MT VERNON WA
2018-03-16 360-873-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2018-03-06 360-743-0XXX 0000–0999Assigned METROPCS, INC. 5562 ABERDEEN WA
2018-03-06 360-743-9XXX 9000–9999Assigned METROPCS, INC. 5562 ABERDEEN WA
2018-03-01 360-706-9XXX 9000–9999Assigned METROPCS, INC. 5562 OLYMPIA WA
2018-02-16 360-726-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2018-02-16 360-912-6XXX 6000–6999Assigned ASTOUND BROADBAND, LLC - WA 937F PT ANGELES WA
2018-02-14 360-572-2XXX 2000–2999Assigned ASTOUND BROADBAND, LLC - WA 937F MARYSVILLE WA
2018-02-09 360-309-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J RIDGEFIELD WA
2018-01-12 360-988-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2018-01-08 360-665-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E LONG BEACH WA
2018-01-08 360-665-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E LONG BEACH WA
2017-12-27 360-706-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2017-12-18 360-644-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2017-12-18 360-644-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2017-12-12 360-503-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MT VERNON 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.