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 |
|---|---|---|---|---|---|---|
| 2010-12-29 | 270-649 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | TOMPKINSVL | KY |
| 2010-12-28 | 270-548 | 1XXX2XXX3XXX4XXX7XXX · 3 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | TEMPLEHILL | KY |
| 2010-11-30 | 270-815 | 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | EDMONTON | KY |
| 2010-06-21 | 270-992 | 0–9 XXXall 10 · 4 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | MURRAY | KY |
| 2007-05-18 | 270-609 | 8XXX9XXX which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | SUMMERSHAD | KY |
| 2007-03-21 | 270-340 | 0XXX1XXX6XXX · 3 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | EDMONTON | KY |
| 2007-03-21 | 270-615 | 0XXX1XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | ST CHARLES | KY |
| 2006-10-25 | 270-357 | none assigned yet which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | FAIRDEALNG | KY |
| 2006-10-25 | 270-530 | none assigned yet which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | HARDIN | KY |
| 2006-10-25 | 270-636 | none assigned yet which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | LYNN GROVE | KY |
| 2006-10-25 | 270-848 | none assigned yet which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | NEWCONCORD | KY |
| 2006-10-25 | 270-895 | 0XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | SALEM | KY |
| 2006-10-25 | 270-920 | 0XXX9XXX · 2 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | GAMALIEL | KY |
| 2006-10-25 | 270-961 | none assigned yet which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | HAZEL | KY |
| 2006-07-12 | 270-888 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | CROFTON | KY |
| 2006-07-12 | 270-954 | 0XXX1XXX2XXX3XXX8XXX9XXX · 6 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | TRENTON | KY |
| 2006-05-03 | 270-810 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | PEMBROKE | KY |
| — | 270-578 | none assigned yet which blocks → | MCC TELEPHONY OF THE SOUTH, LLC - KY | 781F | KIRKSEY | 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.