NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 564
T-MOBILE USA, INC. 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 2
LTE WIRELESS INC. 1
EXIANT COMMUNICATIONS LLC 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
2023-04-25 564-465-1XXX 1000–1999Assigned EON TELECOM, INC. 839J ORTING WA
2023-04-24 564-236-0XXX 0000–0999Assigned TELNYX LLC 073H VANCOUVER WA
2023-04-19 564-241-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2023-04-19 564-241-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2023-04-19 564-653-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-04-18 564-239-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LONGVIEW WA
2023-04-14 564-236-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2023-04-14 564-236-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2023-04-14 564-236-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E VANCOUVER WA
2023-04-14 564-237-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2023-04-13 564-221-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2023-04-13 564-221-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E BATTLEGRND WA
2023-04-13 564-242-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2023-04-07 564-224-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ABERDEEN WA
2023-04-07 564-645-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E POULSBO WA
2023-03-17 564-231-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SOUTH BEND WA
2023-03-03 564-900-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2023-03-03 564-900-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2023-03-01 564-226-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-226-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-230-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-03-01 564-230-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2023-02-07 564-238-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PORT ORCH WA
2023-02-07 564-242-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F MARYSVILLE WA
2023-01-31 564-217-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2023-01-27 564-262-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2023-01-23 564-238-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2023-01-23 564-238-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2023-01-23 564-238-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2023-01-23 564-242-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2023-01-23 564-242-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2023-01-23 564-242-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2023-01-06 564-565-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2023-01-06 564-565-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2023-01-06 564-565-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2022-12-30 564-222-8XXX 8000–8999Assigned TELNYX LLC 073H SILVERDALE WA
2022-12-29 564-215-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E PT ANGELES WA
2022-12-29 564-215-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E PT ANGELES WA
2022-12-29 564-262-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2022-12-29 564-262-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2022-12-29 564-262-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2022-12-12 564-212-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-12-12 564-228-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-12-12 564-633-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E WINLOCK 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.