NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| — | 813-613 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-614 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPACEN | FL |
| — | 813-618 | 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPANTH | FL |
| — | 813-624 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-625 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-629 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-690 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-694 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-695 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-727 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-743 | 1XXX3XXX4XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-753 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-758 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-763 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | PLANT CITY | FL |
| — | 813-767 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-833 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-892 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-895 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-924 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-928 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-951 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-957 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPA | FL |
| — | 813-997 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPANTH | FL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.