NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 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
2011-04-12 612-545-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2011-04-04 612-354-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2011-04-04 612-437-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2011-04-04 612-924-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2011-04-04 612-928-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2011-04-04 612-928-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2011-04-04 612-977-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2011-04-01 612-567-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2011-03-25 612-355-6XXX 6000–6999Assigned ONVOY, LLC - MN 184D TWINCITIES MN
2011-03-25 612-355-8XXX 8000–8999Assigned ONVOY, LLC - MN 184D TWINCITIES MN
2011-03-25 612-564-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2011-03-25 612-564-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2011-03-02 612-843-9XXX 9000–9999Assigned ONVOY, LLC - MN 184D TWINCITIES MN
2011-02-11 612-285-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2011-02-11 612-354-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2011-01-27 612-594-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-594-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-594-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-594-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-594-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-594-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-913-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-913-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-913-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-27 612-913-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-01-21 612-567-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2010-12-28 612-367-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TWINCITIES MN
2010-12-22 612-360-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-12-09 612-326-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-12-09 612-326-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-12-09 612-913-4XXX 4000–4999Assigned ONVOY, LLC - MN 184D TWINCITIES MN
2010-11-05 612-746-7XXX 7000–7999Assigned ONVOY, LLC - MN 184D TWINCITIES MN
2010-10-29 612-284-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-10-29 612-284-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-10-26 612-326-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-10-26 612-345-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
2010-10-18 612-587-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-643-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-787-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-808-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-813-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-843-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-844-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-18 612-844-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2010-10-12 612-412-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2010-10-12 612-412-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2010-10-12 612-412-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2010-10-12 612-412-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2010-10-12 612-412-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2010-10-12 612-412-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN

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.