NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 971
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 8
ONVOY, LLC - OR 2
T-MOBILE USA, INC. 1
NEW CINGULAR WIRELESS PCS, LLC 1
EXIANT COMMUNICATIONS 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
2007-04-13 971-340-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2007-04-10 971-216-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WOODBURN OR
2007-03-22 971-340-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2007-03-15 971-307-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E FALLS CITY OR
2007-03-13 971-340-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2007-03-13 971-340-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2007-02-21 971-340-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2007-02-21 971-340-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2007-02-01 971-220-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E GRESHAM OR
2006-12-07 971-216-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WOODBURN OR
2006-11-30 971-216-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 WOODBURN OR
2006-11-21 971-255-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-10-06 971-239-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2006-10-06 971-239-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2006-09-12 971-338-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 WOODBURN OR
2006-07-17 971-998-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-07-06 971-216-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WOODBURN OR
2006-05-23 971-255-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2006-05-23 971-678-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2006-05-23 971-678-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2006-05-23 971-678-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2006-04-19 971-255-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-04-07 971-259-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J AMITY OR
2006-04-05 971-239-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SALEM OR
2006-03-31 971-255-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2006-03-31 971-255-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PORTLAND OR
2006-03-18 971-255-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 PORTLAND OR
2006-03-18 971-255-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 PORTLAND OR
2006-03-08 971-255-8XXX 8000–8999Assigned METROPCS, INC. 5562 PORTLAND OR
2006-02-17 971-255-7XXX 7000–7999Assigned METROPCS, INC. 5562 PORTLAND OR
2006-02-07 971-327-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVERTON OR
2006-01-19 971-255-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-19 971-678-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2006-01-19 971-678-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2006-01-19 971-678-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2006-01-19 971-678-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2006-01-19 971-678-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2006-01-19 971-678-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2006-01-09 971-344-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-09 971-344-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-09 971-344-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-09 971-344-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2005-12-30 971-344-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2005-12-30 971-344-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2005-12-30 971-344-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2005-12-30 971-344-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2005-12-30 971-344-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2005-12-30 971-344-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2005-12-01 971-732-2XXX 2000–2999Assigned METROPCS, INC. 5562 BEAVERTON OR
2005-11-10 971-732-0XXX 0000–0999Assigned METROPCS, INC. 5562 BEAVERTON 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.