NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-05-09 | 269-636 | 2XXX6XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | BLOOMINGDL | MI |
| 2017-08-14 | 269-662 | 2XXX6XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | UNION | MI |
| 2011-11-16 | 269-301 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | MIDDLEVL | MI |
| 2006-01-12 | 269-405 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | SAWYER | MI |
| 2005-03-04 | 269-464 | 0–9 XXXall 10 · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | WH PIGEON | MI |
| 2005-02-02 | 269-558 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 9 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | MARSHALL | MI |
| 2004-11-01 | 269-355 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | ALLEGAN | MI |
| 2004-10-18 | 269-815 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | BERRIENSPG | MI |
| 2004-10-18 | 269-820 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | THREE OAKS | MI |
| 2002-07-19 | 269-605 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | BENTON HBR | MI |
| 2002-06-17 | 269-841 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | BATTLE CRK | MI |
| 2002-02-19 | 269-409 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | BUCHANAN | MI |
| 2001-12-18 | 269-509 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | WAYLAND | MI |
| 2001-11-16 | 269-919 | 2XXX4XXX7XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | MARCELLUS | MI |
| — | 269-233 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | CASSOPOLIS | MI |
| — | 269-351 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | EAU CLAIRE | MI |
| — | 269-389 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | KALAMAZOO | MI |
| — | 269-551 | 0XXX1XXX2XXX3XXX7XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | COVERT | MI |
| — | 269-924 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | BATTLE CRK | MI |
| — | 269-932 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | ST JOSEPH | MI |
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.