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
2022-02-09 564-900-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2022-02-09 564-900-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2022-02-09 564-900-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2022-02-09 564-900-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2022-01-27 564-229-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-27 564-229-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-27 564-229-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-27 564-229-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-27 564-229-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-27 564-229-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-26 564-232-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-01-25 564-219-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2022-01-21 564-212-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2022-01-21 564-212-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2022-01-21 564-212-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2022-01-21 564-213-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2022-01-21 564-213-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2022-01-21 564-213-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2022-01-21 564-222-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2022-01-19 564-213-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F WHATCOMCTY WA
2022-01-15 564-219-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-01-15 564-219-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-01-15 564-219-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-01-10 564-209-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2022-01-10 564-213-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2022-01-10 564-216-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CENTRALIA WA
2022-01-07 564-219-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2022-01-07 564-219-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2022-01-07 564-232-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BREMERTON WA
2022-01-07 564-666-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J VADER WA
2022-01-06 564-208-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2022-01-06 564-208-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2021-12-30 564-217-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 LONGVIEW WA
2021-12-21 564-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H VADER WA
2021-12-14 564-225-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2021-12-13 564-546-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2021-12-09 564-225-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2021-12-09 564-225-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2021-12-09 564-225-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2021-12-02 564-333-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2021-12-01 564-546-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BELFAIR WA
2021-11-23 564-216-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2021-11-23 564-216-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2021-11-23 564-216-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2021-11-23 564-216-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2021-11-22 564-900-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MT VERNON WA
2021-11-15 564-222-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SILVERDALE WA
2021-11-15 564-222-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SILVERDALE WA
2021-11-08 564-232-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2021-11-08 564-232-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BREMERTON 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.