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
2022-05-27 564-653-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-05-27 564-653-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-05-27 564-653-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-05-27 564-653-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2022-05-26 564-221-0XXX 0000–0999Assigned METROPCS, INC. 5562 BATTLEGRND WA
2022-05-13 564-203-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PT ANGELES WA
2022-05-05 564-217-7XXX 7000–7999Assigned METROPCS, INC. 5562 LONGVIEW WA
2022-05-02 564-218-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-05-02 564-221-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BATTLEGRND WA
2022-04-29 564-229-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-04-29 564-229-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-04-29 564-229-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-04-29 564-229-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2022-04-25 564-203-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PT ANGELES WA
2022-04-22 564-219-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2022-04-22 564-219-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2022-04-22 564-219-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2022-04-22 564-676-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2022-04-22 564-676-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2022-04-21 564-209-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2022-04-21 564-209-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2022-04-21 564-213-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2022-04-13 564-516-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2022-04-05 564-516-0XXX 0000–0999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2022-03-25 564-669-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2022-03-25 564-669-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2022-03-25 564-669-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2022-03-25 564-669-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2022-03-21 564-544-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-03-21 564-544-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-03-21 564-626-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E PACIFICBCH WA
2022-03-16 564-653-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J VANCOUVER WA
2022-03-15 564-669-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J OLYMPIA WA
2022-03-11 564-633-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WINLOCK WA
2022-03-11 564-665-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J OCOSTA WA
2022-03-10 564-666-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E VADER WA
2022-03-09 564-220-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CENTRALIA WA
2022-03-08 564-626-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J PACIFICBCH WA
2022-03-04 564-217-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2022-02-25 564-204-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2022-02-25 564-214-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E YACOLT WA
2022-02-25 564-214-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E YACOLT WA
2022-02-25 564-216-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2022-02-25 564-216-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2022-02-25 564-216-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2022-02-25 564-900-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2022-02-22 564-214-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 YACOLT WA
2022-02-18 564-524-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J COPALIS WA
2022-02-09 564-900-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2022-02-09 564-900-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MT VERNON 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.