NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

28 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 458
ONVOY, LLC - OR 15
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 6
BANDWIDTH.COM CLEC, LLC - OR 3
AHOI LLC 2
NEW CINGULAR WIRELESS PCS, 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
2020-09-03 458-228-5XXX 5000–5999Assigned HD CARRIER LLC 321J SUMPTER OR
2020-09-03 458-228-6XXX 6000–6999Assigned HD CARRIER LLC 321J SUMPTER OR
2020-08-20 458-227-0XXX 0000–0999Assigned TELNYX LLC 073H CRATERLAKE OR
2020-08-11 458-229-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OR 6349 GRANTSPASS OR
2020-08-11 458-592-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CAVE JCT OR
2020-08-10 458-224-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ONTARIO OR
2020-08-10 458-251-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E ONTARIO OR
2020-07-29 458-710-2XXX 2000–2999Assigned TELNYX LLC 073H COOS BAY OR
2020-07-28 458-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H EUGENE OR
2020-07-28 458-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H EUGENE OR
2020-07-28 458-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H PHOENIX OR
2020-07-28 458-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H PHOENIX OR
2020-07-28 458-946-3XXX 3000–3999Assigned FRACTEL, LLC 965H RIDDLE OR
2020-07-24 458-249-0XXX 0000–0999Assigned TELNYX LLC 073H CHILOQUIN OR
2020-07-23 458-803-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2020-07-16 458-220-3XXX 3000–3999Assigned TELNYX LLC 073H CENTRAL PT OR
2020-07-16 458-240-0XXX 0000–0999Assigned METROPCS, INC. 5562 EUGENE OR
2020-07-15 458-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H BEND OR
2020-07-10 458-250-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J EUGENE OR
2020-07-08 458-240-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 EUGENE OR
2020-07-01 458-703-1XXX 1000–1999Assigned TELNYX LLC 073H CANYONVL OR
2020-06-24 458-710-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H COOS BAY OR
2020-06-24 458-710-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H COOS BAY OR
2020-06-11 458-223-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 LEBANON OR
2020-06-11 458-459-1XXX 1000–1999Assigned TELNYX LLC 073H BLUE RIVER OR
2020-05-27 458-246-0XXX 0000–0999Assigned TELNYX LLC 073H ASHLAND OR
2020-05-22 458-233-8XXX 8000–8999Assigned TELNYX LLC 073H ALBANY OR
2020-05-19 458-710-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 COOS BAY OR
2020-05-14 458-899-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDMOND OR
2020-05-13 458-249-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHILOQUIN OR
2020-05-11 458-229-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRANTSPASS OR
2020-05-11 458-251-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO OR
2020-05-11 458-251-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO OR
2020-05-11 458-658-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2020-05-11 458-658-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2020-05-11 458-658-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2020-05-11 458-802-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2020-05-06 458-658-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D MEDFORD OR
2020-05-06 458-658-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D MEDFORD OR
2020-04-30 458-220-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CENTRAL PT OR
2020-04-28 458-218-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PRINEVILLE OR
2020-04-22 458-232-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KLAMATHFLS OR
2020-04-22 458-232-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KLAMATHFLS OR
2020-04-21 458-251-2XXX 2000–2999Assigned METROPCS, INC. 5562 ONTARIO OR
2020-04-17 458-229-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRANTSPASS OR
2020-04-07 458-235-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BOARDMAN OR
2020-04-06 458-258-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E ROGUERIVER OR
2020-04-06 458-258-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E ROGUERIVER OR
2020-04-03 458-239-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2020-04-03 458-239-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE 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.