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
2021-09-30 458-257-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANTSPASS OR
2021-09-28 458-236-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E RUFUS OR
2021-09-28 458-241-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E ECHO OR
2021-09-28 458-242-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E IMBLER OR
2021-09-28 458-999-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 UMATILLA OR
2021-09-24 458-244-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E MYRTLE CRK OR
2021-09-24 458-244-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E MYRTLE CRK OR
2021-09-24 458-600-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BEND OR
2021-09-24 458-600-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BEND OR
2021-09-22 458-488-1XXX 1000–1999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C MEDFORD OR
2021-09-20 458-218-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E PRINEVILLE OR
2021-09-20 458-218-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E PRINEVILLE OR
2021-09-20 458-999-7XXX 7000–7999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F UMATILLA OR
2021-09-15 458-243-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E GLENDALE OR
2021-09-15 458-262-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2021-09-15 458-262-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2021-09-15 458-262-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2021-09-15 458-836-0XXX 0000–0999Assigned COMMIO, LLC 939H BEND OR
2021-09-15 458-836-2XXX 2000–2999Assigned COMMIO, LLC 939H BEND OR
2021-09-15 458-836-4XXX 4000–4999Assigned COMMIO, LLC 939H BEND OR
2021-09-15 458-836-6XXX 6000–6999Assigned COMMIO, LLC 939H BEND OR
2021-09-14 458-234-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2021-09-14 458-239-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2021-09-13 458-276-8XXX 8000–8999Assigned SKYE TELECOM LLC DBA SKYETEL 622J ONTARIO OR
2021-09-13 458-455-5XXX 5000–5999Assigned SKYE TELECOM LLC DBA SKYETEL 622J COOS BAY OR
2021-09-13 458-544-4XXX 4000–4999Assigned SKYE TELECOM LLC DBA SKYETEL 622J EUGENE OR
2021-09-13 458-588-8XXX 8000–8999Assigned SKYE TELECOM LLC DBA SKYETEL 622J THE DALLES OR
2021-09-13 458-877-7XXX 7000–7999Assigned SKYE TELECOM LLC DBA SKYETEL 622J LA GRANDE OR
2021-09-07 458-200-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CASCADELKS OR
2021-09-07 458-230-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H COOS BAY OR
2021-09-07 458-241-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ECHO OR
2021-09-07 458-243-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H GLENDALE OR
2021-09-07 458-245-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H EUGENE OR
2021-09-07 458-258-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROGUERIVER OR
2021-09-07 458-265-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WHITE CITY OR
2021-09-07 458-457-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H NYSSA OR
2021-09-07 458-529-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PHOENIX OR
2021-09-07 458-757-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MILTONFWTR OR
2021-09-07 458-800-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MADRAS OR
2021-09-07 458-854-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2021-09-07 458-854-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E THE DALLES OR
2021-09-01 458-246-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ASHLAND OR
2021-09-01 458-253-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ALBANY OR
2021-08-31 458-236-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E RUFUS OR
2021-08-31 458-237-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E ODELL OR
2021-08-31 458-237-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E ODELL OR
2021-08-30 458-264-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E JUNCTIONCY OR
2021-08-30 458-264-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E JUNCTIONCY OR
2021-08-30 458-270-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E VENETA OR
2021-08-30 458-270-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E VENETA 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.