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
2011-01-10 360-719-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2010-12-22 360-553-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2010-12-22 360-941-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2010-12-14 360-232-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2010-12-14 360-232-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2010-12-10 360-746-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2010-12-09 360-276-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E PACIFICBCH WA
2010-12-08 360-203-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E FORKS WA
2010-12-08 360-686-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E YACOLT WA
2010-12-08 360-860-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E KINGSTON WA
2010-12-08 360-987-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E LKQUINAULT WA
2010-12-06 360-217-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2010-12-03 360-200-9XXX 9000–9999Assigned METROPCS, INC. 5562 LONGVIEW WA
2010-12-03 360-324-8XXX 8000–8999Assigned METROPCS, INC. 5562 CHEHALIS WA
2010-12-03 360-610-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2010-12-03 360-626-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 POULSBO WA
2010-12-03 360-720-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2010-12-03 360-821-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2010-11-24 360-284-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ENUMCLAW WA
2010-11-22 360-553-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2010-11-12 360-524-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2010-11-10 360-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNOHOMISH WA
2010-11-05 360-358-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SHELTON WA
2010-11-03 360-529-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 OLYMPIA WA
2010-10-27 360-200-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F LONGVIEW WA
2010-10-27 360-207-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PT ANGELES WA
2010-10-27 360-386-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F MARYSVILLE WA
2010-10-27 360-386-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F MARYSVILLE WA
2010-10-27 360-499-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OAK HARBOR WA
2010-10-27 360-519-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PORT ORCH WA
2010-10-27 360-524-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F VANCOUVER WA
2010-10-27 360-525-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BREMERTON WA
2010-10-27 360-553-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F VANCOUVER WA
2010-10-27 360-553-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F VANCOUVER WA
2010-10-20 360-550-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2010-10-18 360-553-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2010-10-15 360-322-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2010-10-13 360-865-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SILVERDALE WA
2010-10-13 360-865-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SILVERDALE WA
2010-10-13 360-899-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2010-09-30 360-515-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2010-09-28 360-515-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2010-09-28 360-515-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2010-09-20 360-616-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2010-09-20 360-667-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BATTLEGRND WA
2010-09-17 360-531-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTTOWNSEND WA
2010-09-16 360-719-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2010-09-14 360-646-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E MORTON WA
2010-09-03 360-965-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 7455 MARYSVILLE WA
2010-08-24 360-778-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY 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.