NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 651
QWEST CORPORATION 186
AERIAL COMMUNICATIONS, INC. 66
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 47
ONVOY, LLC - MN 32
LEVEL 3 COMMUNICATIONS, LLC - MN 19
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-10-19 651-360 0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 6 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 RED WING MN
2018-09-17 651-371 0–9 XXXwhole prefix which blocks → ONVOY, LLC - MN 184D HASTINGS MN
2018-08-20 651-359 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 RED WING MN
2018-04-05 651-358 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - MN 184D TWINCITIES MN
2018-03-09 651-350 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - MN 184D TWINCITIES MN
2017-07-11 651-299 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E LAKE CITY MN
2016-11-21 651-427 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF MINNESOTA, LLC - MN 107F STCROIXBCH MN
2016-11-10 651-508 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2016-09-21 651-435 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2016-09-19 651-502 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2016-06-23 651-802 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2016-06-15 651-443 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2016-03-24 651-279 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2016-02-19 651-273 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - MN 184D HASTINGS MN
2015-12-17 651-424 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2015-12-09 651-440 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2015-06-30 651-363 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2015-03-19 651-529 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MN 184D TWINCITIES MN
2015-02-04 651-362 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E NORTH BRCH MN
2015-02-04 651-376 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E RED WING MN
2015-01-16 651-425 0–9 XXXall 10 · 2 holders which blocks → QWEST CORPORATION 9631 TWINCITIES MN
2014-12-05 651-571 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J STILLWATER MN
2014-11-03 651-432 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E HASTINGS MN
2014-10-28 651-505 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E STCROIXBCH MN
2014-09-11 651-706 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2014-09-10 651-313 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 TWINCITIES MN
2014-03-20 651-417 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 RED WING MN
2014-03-14 651-219 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2013-10-07 651-703 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 RED WING MN
2013-09-25 651-504 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 STILLWATER MN
2013-09-12 651-419 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MN 184D NORTH BRCH MN
2013-09-06 651-352 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2013-04-09 651-412 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF MINNESOTA, LLC - MN 107F WABASHA MN
2013-02-01 651-413 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 STILLWATER MN
2013-01-15 651-410 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 RED WING MN
2013-01-10 651-401 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN 7783 NORTH BRCH MN
2012-12-24 651-666 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MN 184D TWINCITIES MN
2012-11-09 651-404 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK OF MINNESOTA, INC. 1456 HASTINGS MN
2012-09-10 651-444 0–9 XXXall 10 · 4 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 4139 TWINCITIES MN
2012-07-16 651-318 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 HASTINGS MN
2012-05-22 651-333 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF MINNESOTA, LLC - MN 107F TWINCITIES MN
2012-03-21 651-409 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF MINNESOTA, LLC - MN 107F SCANDIMRIN MN
2012-03-05 651-888 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF MINNESOTA, LLC - MN 107F TWINCITIES MN
2012-01-19 651-302 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 HASTINGS MN
2011-10-10 651-348 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 TELECOM OF MINNESOTA, LLC - MN 5312 TWINCITIES MN
2011-10-05 651-202 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2011-09-23 651-240 0–9 XXXall 10 · 3 holders which blocks → MIDCONTINENT COMMUNICATIONS - MN 429A TAYLORSFLS MN
2011-09-08 651-383 0–9 XXXall 10 · 6 holders which blocks → MIDCONTINENT COMMUNICATIONS - MN 429A STILLWATER MN
2011-07-19 651-272 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2011-04-22 651-243 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MN 184D NORTH BRCH MN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.