NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2019-07-03 971-335-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2019-07-03 971-335-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2019-07-03 971-349-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-07-03 971-349-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-07-03 971-349-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-07-03 971-990-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-06-19 971-349-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-19 971-349-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-19 971-349-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-19 971-349-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-18 971-286-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 WARRENTON OR
2019-06-18 971-345-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM OR
2019-06-14 971-252-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 STFRD-SNDY OR
2019-06-14 971-275-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-14 971-323-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-14 971-867-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-14 971-990-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-06-13 971-757-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ST HELENS OR
2019-06-10 971-323-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PORTLAND OR
2019-06-10 971-348-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2019-06-10 971-348-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E BEAVERTON OR
2019-06-06 971-224-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J STFRD-SNDY OR
2019-05-31 971-247-3XXX 3000–3999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F NORTH PL OR
2019-05-31 971-345-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALEM OR
2019-05-31 971-757-8XXX 8000–8999Assigned METROPCS, INC. 5562 ST HELENS OR
2019-05-29 971-296-0XXX 0000–0999Assigned PEERLESS NETWORK OF OREGON, LLC - OR 157F WESTPORT OR
2019-05-24 971-348-0XXX 0000–0999Assigned METROPCS, INC. 5562 BEAVERTON OR
2019-05-17 971-341-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2019-05-17 971-341-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2019-05-14 971-867-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-05-14 971-867-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-05-14 971-867-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-05-14 971-867-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2019-05-06 971-432-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 WOODBURN OR
2019-04-09 971-252-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2019-04-09 971-252-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E STFRD-SNDY OR
2019-04-09 971-286-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E WARRENTON OR
2019-04-09 971-286-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E WARRENTON OR
2019-04-09 971-346-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-04-09 971-346-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-04-09 971-346-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-04-09 971-666-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-04-09 971-666-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-04-09 971-666-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2019-04-02 971-306-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ROCKAWAY OR
2019-03-20 971-900-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2019-03-20 971-900-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 SALEM OR
2019-03-14 971-278-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CLATSKANIE OR
2019-03-07 971-289-2XXX 2000–2999Assigned METROPCS, INC. 5562 DALLAS OR
2019-03-07 971-346-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PORTLAND OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.