NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 612
8X8, INC. 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
2018-05-29 612-391-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-05-29 612-391-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-05-29 612-391-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-05-29 612-391-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-05-29 612-391-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-04-26 612-391-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-04-26 612-391-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-04-26 612-391-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-04-03 612-389-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-04-03 612-389-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2018-02-06 612-383-1XXX 1000–1999Assigned ONVOY, LLC - MN 184D TWINCITIES MN
2018-02-02 612-383-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MN 8405 TWINCITIES MN
2018-02-02 612-383-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MN 8405 TWINCITIES MN
2018-02-01 612-383-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J TWINCITIES MN
2018-01-16 612-380-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-380-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-383-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-383-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-383-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-383-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-383-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2018-01-16 612-902-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TWINCITIES MN
2018-01-16 612-902-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TWINCITIES MN
2018-01-08 612-368-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-01-08 612-368-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2017-12-22 612-358-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN

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.