NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 612
AERIAL COMMUNICATIONS, INC. 93
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
2022-01-19 612-484 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2021-09-01 612-471 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2021-09-01 612-472 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2021-04-01 612-461 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2020-11-11 612-457 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2020-03-25 612-447 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2020-03-25 612-450 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2020-03-25 612-453 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2019-06-24 612-433 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2019-06-24 612-438 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2016-12-15 612-540 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2016-09-19 612-517 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2016-06-15 612-512 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2015-09-22 612-458 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2014-03-17 612-404 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2013-10-18 612-707 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2013-06-14 612-806 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2012-11-09 612-402 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2012-03-19 612-323 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2011-07-26 612-223 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2006-08-23 612-876 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-09-13 612-559 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-09-10 612-226 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-09-10 612-227 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-08-06 612-229 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-04-26 612-290 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-04-20 612-703 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-04-10 612-205 8XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-02-01 612-203 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-01-26 612-423 7XXX8XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-01-26 612-432 0XXX1XXX2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-207 0XXX2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-220 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-221 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-232 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-237 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-239 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-242 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-245 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-250 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-251 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-267 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-272 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-275 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-281 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-282 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-296 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-298 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-306 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-310 0XXX2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.