NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026
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 |
|---|---|---|---|---|---|---|
| — | 484-737 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - PA | 547E | KENNETT SQ | PA |
| — | 484-739 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | KENNETT SQ | PA |
| — | 484-749 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | WEST GROVE | PA |
| — | 484-759 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | OXFORD | PA |
| — | 484-779 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | MENDENHALL | PA |
| — | 484-784 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - PA | 547E | COATESVL | PA |
| — | 484-789 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | COATESVL | PA |
| — | 484-799 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | HONEYBROOK | PA |
| — | 484-800 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - PA | 547E | PHPHSBZN10 | PA |
| — | 484-806 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | PHPHSBZN30 | PA |
| — | 484-853 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | ONVOY, LLC - PA | 547E | HELLERTOWN | PA |
| — | 484-859 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | HELLERTOWN | PA |
| — | 484-882 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | W CHESTER | PA |
| — | 484-900 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - PA | 547E | UNIONVILLE | PA |
| — | 484-910 | 2XXX3XXX4XXX5XXX6XXX8XXX which blocks → | ONVOY, LLC - PA | 547E | MORTONVL | PA |
| — | 484-922 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | PHOENIXVL | PA |
| — | 484-924 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - PA | 547E | PHOENIXVL | PA |
| — | 484-933 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - PA | 547E | ROYERSFORD | PA |
| — | 484-939 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | ROYERSFORD | PA |
| — | 484-946 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | POTTSTOWN | PA |
| — | 484-952 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - PA | 547E | PHPHSBZN28 | PA |
| — | 484-969 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | SCHWENKSVL | PA |
| — | 484-970 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX which blocks → | ONVOY, LLC - PA | 547E | COLLEGEVL | PA |
| — | 484-973 | 0XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → | ONVOY, LLC - PA | 547E | COLLEGEVL | PA |
| — | 484-978 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | COLLEGEVL | PA |
| — | 484-989 | not yet reported which blocks → | ONVOY, LLC - PA | 547E | PUGHTOWN | PA |
| — | 484-992 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | ONVOY, LLC - PA | 547E | CENTER PT | PA |
| — | 484-996 | 1XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - PA | 547E | PHOENIXVL | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.