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
2006-09-17 360-967-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CASTLEROCK WA
2006-09-17 360-991-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2006-09-15 360-348-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNOHOMISH WA
2006-09-15 360-518-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-09-15 360-566-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-09-15 360-667-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2006-09-15 360-771-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-09-15 360-772-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-09-14 360-477-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2006-09-14 360-857-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 7455 RIDGEFIELD WA
2006-09-14 360-917-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2006-09-14 360-917-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2006-09-14 360-918-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-09-13 360-581-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ABERDEEN WA
2006-09-07 360-761-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E BUCKLEY WA
2006-09-07 360-851-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BLACKDIMND WA
2006-09-07 360-889-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SO PRAIRIE WA
2006-09-01 360-449-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2006-09-01 360-625-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E ENUMCLAW WA
2006-08-31 360-562-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2006-08-30 360-448-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2006-08-29 360-823-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-08-29 360-823-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-08-29 360-823-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-08-29 360-823-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-08-29 360-823-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-08-23 360-356-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2006-08-23 360-464-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 OLYMPIA WA
2006-08-18 360-229-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SHELTON WA
2006-08-18 360-443-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2006-08-14 360-863-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2006-08-14 360-863-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2006-08-10 360-393-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2006-08-10 360-393-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2006-08-10 360-633-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2006-08-10 360-633-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2006-08-10 360-689-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2006-08-08 360-746-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2006-08-04 360-917-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E BREMERTON WA
2006-08-03 360-722-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2006-08-01 360-566-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 VANCOUVER WA
2006-07-31 360-593-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2006-07-26 360-464-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2006-07-20 360-244-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH WA
2006-07-18 360-500-0XXX 0000–0999Assigned METROPCS, INC. 5562 ABERDEEN WA
2006-07-14 360-918-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-07-14 360-918-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-07-14 360-918-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-07-12 360-314-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2006-07-12 360-314-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER 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.