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 |
|---|---|---|---|---|---|---|
| 2018-07-23 | 386-242 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | JENNINGS | FL |
| 2018-07-23 | 386-245 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | WELLBORN | FL |
| 2013-12-30 | 386-703 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | MAYO | FL |
| 2006-10-25 | 386-218 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | ORANGECITY | FL |
| 2004-06-25 | 386-202 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | PIERSON | FL |
| 2002-07-18 | 386-269 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | LAKE CITY | FL |
| 2002-04-30 | 386-868 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
| 2001-05-23 | 386-951 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | ORANGECITY | FL |
| 2001-05-23 | 386-957 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | NWSMYRNBCH | FL |
| 2001-03-21 | 386-490 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DELAND | FL |
| 2001-03-21 | 386-597 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | PALM COAST | FL |
| — | 386-223 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | JASPER | FL |
| — | 386-259 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DEBARY | FL |
| — | 386-267 | 4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
| — | 386-271 | 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
| — | 386-302 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | PALM COAST | FL |
| — | 386-492 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
| — | 386-675 | 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
| — | 386-742 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DEBARY | FL |
| — | 386-872 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
| — | 386-882 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DAYTONABCH | FL |
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.