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 |
|---|---|---|---|---|---|---|
| 2022-11-04 | 502-660 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | SADIEVILLE | KY |
| 2012-08-03 | 502-602 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LA GRANGE | KY |
| 2012-08-03 | 502-883 | 0–9 XXXall 10 · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LOUISVILLE | KY |
| 2011-11-23 | 502-353 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LAWRENCEBG | KY |
| 2007-07-25 | 502-906 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | STAMPNGRND | KY |
| 2002-11-19 | 502-749 | not yet reported which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LOUISVILLE | KY |
| 2002-07-02 | 502-290 | not yet reported which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LOUISVILLE | KY |
| 2002-06-20 | 502-465 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CAMPBELSBG | KY |
| 2002-06-20 | 502-466 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | GHENT | KY |
| 2002-06-20 | 502-467 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | MILTON | KY |
| 2002-06-20 | 502-662 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CARROLLTON | KY |
| 2002-06-20 | 502-663 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | BEDFORD | KY |
| 2002-04-03 | 502-277 | 0–9 XXXall 10 · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | ZONETON | KY |
| 2002-04-03 | 502-531 | 0–9 XXXall 10 · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | SHEPHEDSVL | KY |
| 2002-04-03 | 502-904 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | MTWASHIGTN | KY |
| 2001-08-09 | 502-264 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LEBANONJCT | KY |
| 2001-08-09 | 502-265 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LA GRANGE | KY |
| — | 502-324 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | WEST POINT | KY |
| — | 502-354 | 0–9 XXXall 10 · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | TAYLORSVL | KY |
| — | 502-378 | 0–9 XXXall 10 · 7 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | ROSETRRACE | KY |
| — | 502-384 | 0–9 XXXwhole prefix which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LOUISVILLE | KY |
| — | 502-437 | 0–9 XXXall 10 · 8 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | SHELBYVL | KY |
| — | 502-742 | not yet reported which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | LOUISVILLE | KY |
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.