NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 503
ONVOY, LLC - OR 4
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 1
BANDWIDTH.COM CLEC, LLC - OR 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
2014-09-25 503-773-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2014-09-25 503-773-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2014-09-25 503-809-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NORTH PL OR
2014-09-23 503-850-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2014-09-19 503-420-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2014-09-19 503-606-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2014-09-18 503-455-8XXX 8000–8999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F WESTPORT OR
2014-09-03 503-850-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2014-09-03 503-850-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E CLACKAMAS OR
2014-08-29 503-899-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBERG OR
2014-08-20 503-994-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WARRENTON OR
2014-08-19 503-328-4XXX 4000–4999Assigned METROPCS, INC. 5562 GRESHAM OR
2014-08-19 503-496-6XXX 6000–6999Assigned METROPCS, INC. 5562 CLACKAMAS OR
2014-08-19 503-498-1XXX 1000–1999Assigned METROPCS, INC. 5562 STFRD-SNDY OR
2014-08-13 503-400-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2014-08-12 503-200-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PORTLAND OR
2014-07-29 503-328-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J GRESHAM OR
2014-07-29 503-400-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2014-07-15 503-826-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J STFRD-SNDY OR
2014-07-14 503-509-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 STAYTON OR
2014-06-17 503-488-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2014-06-17 503-673-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2014-06-17 503-673-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2014-06-17 503-673-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2014-06-17 503-673-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2014-05-21 503-858-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEAVERTON OR
2014-05-20 503-850-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2014-05-16 503-482-3XXX 3000–3999Assigned METROPCS, INC. 5562 STFRD-SNDY OR
2014-05-16 503-496-2XXX 2000–2999Assigned METROPCS, INC. 5562 CLACKAMAS OR
2014-05-16 503-512-3XXX 3000–3999Assigned METROPCS, INC. 5562 GRESHAM OR
2014-05-15 503-751-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2014-05-15 503-917-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DALLAS OR
2014-05-14 503-908-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2014-05-14 503-908-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2014-05-14 503-908-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2014-05-14 503-908-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2014-05-14 503-908-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CLACKAMAS OR
2014-05-02 503-387-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CLACKAMAS OR
2014-04-18 503-917-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 DALLAS OR
2014-04-11 503-558-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2014-04-01 503-420-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DALLAS OR
2014-03-04 503-902-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2014-02-17 503-889-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2014-02-17 503-946-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2014-01-24 503-966-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WESTPORT OR
2014-01-24 503-994-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WARRENTON OR
2014-01-23 503-773-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORTH PL OR
2014-01-22 503-854-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DETROIT OR
2014-01-15 503-558-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR
2014-01-15 503-558-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STFRD-SNDY OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.