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
2015-09-10 360-667-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2015-09-10 360-667-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2015-09-10 360-669-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2015-09-10 360-669-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2015-09-10 360-685-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2015-09-10 360-777-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E LONG BEACH WA
2015-09-10 360-777-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E LONG BEACH WA
2015-09-10 360-922-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2015-09-10 360-979-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2015-09-10 360-986-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2015-09-08 360-850-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2015-09-03 360-261-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LONGVIEW WA
2015-09-03 360-572-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE WA
2015-08-25 360-964-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MONTESANO WA
2015-08-12 360-545-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SHELTON WA
2015-08-12 360-603-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2015-08-12 360-603-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2015-08-12 360-603-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2015-08-12 360-810-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2015-08-12 360-810-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2015-08-12 360-869-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2015-08-12 360-869-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2015-08-12 360-869-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2015-08-12 360-979-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2015-08-11 360-804-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNOHOMISH WA
2015-08-11 360-955-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 YELM WA
2015-08-03 360-669-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CENTRALIA WA
2015-08-03 360-685-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2015-08-03 360-810-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2015-08-03 360-940-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E COPALIS WA
2015-07-31 360-869-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2015-07-27 360-810-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2015-07-27 360-810-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2015-07-27 360-939-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2015-07-23 360-505-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAYHARBCO WA
2015-07-21 360-322-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2015-07-21 360-625-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ENUMCLAW WA
2015-07-16 360-543-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2015-07-13 360-810-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 OLYMPIA WA
2015-07-10 360-869-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2015-07-08 360-209-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2015-07-08 360-979-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2015-07-06 360-602-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORT ORCH WA
2015-07-06 360-818-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMAS WA
2015-06-17 360-353-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2015-06-12 360-525-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E BREMERTON WA
2015-06-12 360-795-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CATHLAMET WA
2015-06-11 360-353-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2015-06-11 360-383-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2015-06-11 360-869-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 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.