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
2021-02-04 458-241-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ECHO OR
2021-02-03 458-243-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E GLENDALE OR
2021-02-03 458-243-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E GLENDALE OR
2021-02-03 458-244-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E MYRTLE CRK OR
2021-02-03 458-244-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E MYRTLE CRK OR
2021-02-03 458-252-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E OREGONSLOP OR
2021-02-03 458-252-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E OREGONSLOP OR
2021-02-03 458-258-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ROGUERIVER OR
2021-02-03 458-258-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ROGUERIVER OR
2021-02-03 458-529-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E PHOENIX OR
2021-02-03 458-529-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E PHOENIX OR
2021-02-03 458-592-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E CAVE JCT OR
2021-02-03 458-592-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E CAVE JCT OR
2021-02-03 458-675-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E OAKRIDGE OR
2021-02-03 458-675-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E OAKRIDGE OR
2021-02-03 458-703-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E CANYONVL OR
2021-02-03 458-703-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E CANYONVL OR
2021-02-01 458-259-0XXX 0000–0999Assigned ALYRICA TELEPHONE LLC DBA NEXT GEN PHONE SYS-OR 9882 BROWNSVL OR
2021-01-27 458-658-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2021-01-13 458-227-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E CRATERLAKE OR
2021-01-12 458-253-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2021-01-12 458-253-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2020-12-23 458-254-8XXX 8000–8999Assigned TELNYX LLC 073H KLAMATHFLS OR
2020-12-11 458-229-4XXX 4000–4999Assigned TELNYX LLC 073H GRANTSPASS OR
2020-11-27 458-757-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MILTONFWTR OR
2020-11-25 458-257-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OR 6349 GRANTSPASS OR
2020-11-12 458-899-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDMOND OR
2020-10-25 458-254-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2020-10-23 458-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J EUGENE OR
2020-10-21 458-592-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OR 6349 CAVE JCT OR
2020-10-15 458-223-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LEBANON OR
2020-10-14 458-246-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASHLAND OR
2020-10-14 458-253-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2020-10-14 458-253-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2020-10-09 458-253-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2020-10-06 458-245-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2020-10-06 458-245-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2020-10-02 458-218-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F PRINEVILLE OR
2020-10-02 458-243-0XXX 0000–0999Assigned TELNYX LLC 073H GLENDALE OR
2020-10-02 458-666-4XXX 4000–4999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F BEND OR
2020-09-29 458-254-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KLAMATHFLS OR
2020-09-29 458-255-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OR 6349 HERMISTON OR
2020-09-16 458-253-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ALBANY OR
2020-09-16 458-253-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ALBANY OR
2020-09-15 458-888-9XXX 9000–9999Assigned NUSO, LLC 478J STATELINE OR
2020-09-14 458-252-1XXX 1000–1999Assigned NUSO, LLC 478J OREGONSLOP OR
2020-09-08 458-223-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 LEBANON OR
2020-09-08 458-240-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J EUGENE OR
2020-09-08 458-240-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J EUGENE OR
2020-09-03 458-219-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 HERMISTON 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.