NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 971
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 8
ONVOY, LLC - OR 2
T-MOBILE USA, INC. 1
NEW CINGULAR WIRELESS PCS, LLC 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
2021-09-07 971-349-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PORTLAND OR
2021-09-07 971-366-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BEAVER OR
2021-09-07 971-367-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H HOOD LAND OR
2021-09-07 971-387-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MCMINNVL OR
2021-09-07 971-405-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BEAVERTON OR
2021-09-07 971-445-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WARRENTON OR
2021-09-07 971-529-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-09-07 971-529-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2021-09-07 971-970-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PACIFIC CY OR
2021-09-01 971-791-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BAY CITY OR
2021-08-31 971-396-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2021-08-31 971-396-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2021-08-31 971-396-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2021-08-31 971-396-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2021-08-31 971-397-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2021-08-31 971-397-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E NORTH PL OR
2021-08-31 971-405-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2021-08-31 971-405-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2021-08-31 971-405-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2021-08-31 971-405-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2021-08-31 971-970-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E PACIFIC CY OR
2021-08-30 971-402-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E AMITY OR
2021-08-30 971-402-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E AMITY OR
2021-08-27 971-224-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STFRD-SNDY OR
2021-08-27 971-265-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E GARIBALDI OR
2021-08-27 971-385-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2021-08-27 971-385-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2021-08-27 971-385-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2021-08-27 971-385-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NEWBERG OR
2021-08-27 971-394-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PORTLAND OR
2021-08-27 971-970-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PACIFIC CY OR
2021-08-26 971-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H CLACKAMAS OR
2021-08-26 971-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H CLACKAMAS OR
2021-08-26 971-667-8XXX 8000–8999Assigned FRACTEL, LLC 965H GOVENTCAMP OR
2021-08-25 971-671-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 KNAPPA OR
2021-08-24 971-296-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 WESTPORT OR
2021-08-23 971-387-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2021-08-23 971-387-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MCMINNVL OR
2021-08-20 971-408-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-08-20 971-408-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-08-20 971-408-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-08-20 971-408-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2021-08-18 971-394-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D PORTLAND OR
2021-08-18 971-394-8XXX 8000–8999Assigned VONAGE AMERICA LLC 197D PORTLAND OR
2021-08-11 971-394-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PORTLAND OR
2021-08-11 971-394-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PORTLAND OR
2021-08-11 971-394-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTLAND OR
2021-08-10 971-405-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2021-08-10 971-405-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR
2021-08-10 971-405-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BEAVERTON OR

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.