NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 541
ONVOY, LLC - OR 2
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
2012-02-07 541-887-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2012-01-31 541-400-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HOOD RIVER OR
2012-01-30 541-236-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 ROSEBURG OR
2012-01-20 541-502-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F GOLD HILL OR
2012-01-17 541-200-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2012-01-12 541-449-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STANFIELD OR
2012-01-06 541-566-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ATHENA OR
2012-01-03 541-808-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COOS BAY OR
2011-12-19 541-702-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JACKSONVL OR
2011-12-15 541-803-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CULVER OR
2011-12-13 541-214-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E EUGENE OR
2011-12-08 541-415-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CAVE JCT OR
2011-12-07 541-246-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2011-12-06 541-327-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JEFFERSON OR
2011-11-16 541-709-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ONTARIO OR
2011-11-15 541-299-8XXX 8000–8999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C ROGUERIVER OR
2011-11-15 541-375-7XXX 7000–7999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C ROSEBURG OR
2011-11-15 541-393-1XXX 1000–1999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C EUGENE OR
2011-11-15 541-423-8XXX 8000–8999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C CENTRAL PT OR
2011-11-15 541-538-5XXX 5000–5999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C WHITE CITY OR
2011-11-15 541-702-5XXX 5000–5999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C JACKSONVL OR
2011-11-15 541-851-3XXX 3000–3999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C KLAMATHFLS OR
2011-11-15 541-897-5XXX 5000–5999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C PHOENIX OR
2011-11-11 541-246-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2011-11-11 541-516-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 REDMOND OR
2011-11-11 541-530-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2011-11-08 541-823-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OR 7442 ONTARIO OR
2011-11-07 541-237-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 GRANTSPASS OR
2011-11-04 541-632-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EUGENE OR
2011-10-28 541-897-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PHOENIX OR
2011-10-18 541-423-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CENTRAL PT OR
2011-10-13 541-708-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ASHLAND OR
2011-10-05 541-233-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PRINEVILLE OR
2011-10-04 541-200-2XXX 2000–2999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C MEDFORD OR
2011-10-03 541-248-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ALBANY OR
2011-09-23 541-635-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F TOLEDO OR
2011-09-15 541-603-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2011-09-13 541-399-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HOOD RIVER OR
2011-09-06 541-435-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 COOS BAY OR
2011-09-02 541-670-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2011-09-01 541-652-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E BLY OR
2011-09-01 541-835-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E FT KLAMATH OR
2011-08-31 541-246-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J EUGENE OR
2011-08-30 541-622-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2011-08-25 541-238-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F KLAMATHFLS OR
2011-08-17 541-215-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PENDLETON OR
2011-08-17 541-396-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E COQUILLE OR
2011-08-17 541-622-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MEDFORD OR
2011-08-17 541-638-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BLACKBUTTE OR
2011-08-09 541-248-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ALBANY 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.