NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-11-08 564-232-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-11-05 564-208-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2021-11-05 564-208-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2021-11-02 564-216-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F CENTRALIA WA
2021-10-28 564-232-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BREMERTON WA
2021-10-28 564-232-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E BREMERTON WA
2021-10-26 564-216-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2021-10-25 564-214-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E YACOLT WA
2021-10-25 564-214-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E YACOLT WA
2021-10-25 564-234-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BUCKLEY WA
2021-10-25 564-234-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E BUCKLEY WA
2021-10-25 564-333-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2021-10-25 564-333-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2021-10-25 564-333-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2021-10-18 564-213-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2021-10-18 564-213-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2021-10-18 564-213-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2021-10-18 564-465-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E ORTING WA
2021-10-18 564-465-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E ORTING WA
2021-10-18 564-529-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E ROCHESTER WA
2021-10-18 564-529-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ROCHESTER WA
2021-10-18 564-676-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E OAK HARBOR WA
2021-10-18 564-676-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E OAK HARBOR WA
2021-10-18 564-676-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E OAK HARBOR WA
2021-10-13 564-232-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-10-13 564-232-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-10-13 564-232-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-10-12 564-212-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ABERDEEN WA
2021-10-06 564-212-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2021-10-06 564-212-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2021-10-06 564-544-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2021-10-04 564-225-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OLYMPIA WA
2021-09-28 564-212-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F ABERDEEN WA
2021-09-16 564-225-9XXX 9000–9999Assigned TELNYX LLC 073H OLYMPIA WA
2021-09-15 564-214-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 YACOLT WA
2021-09-15 564-333-5XXX 5000–5999Assigned COMMIO, LLC 939H LONGVIEW WA
2021-09-15 564-333-6XXX 6000–6999Assigned COMMIO, LLC 939H LONGVIEW WA
2021-09-15 564-333-7XXX 7000–7999Assigned COMMIO, LLC 939H LONGVIEW WA
2021-09-15 564-333-8XXX 8000–8999Assigned COMMIO, LLC 939H LONGVIEW WA
2021-08-31 564-529-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F ROCHESTER WA
2021-08-26 564-225-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OLYMPIA WA
2021-08-26 564-225-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OLYMPIA WA
2021-08-26 564-225-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OLYMPIA WA
2021-08-26 564-225-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OLYMPIA WA
2021-08-19 564-205-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-08-19 564-205-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-08-19 564-210-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-08-12 564-333-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2021-08-10 564-205-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2021-08-10 564-205-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.