NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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.
Most active assignees, all time — NPA 215
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 215-417 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-418 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-419 | 5XXX7XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-422 | 2XXX3XXX4XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-423 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-424 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-425 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-426 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-427 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-428 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MORRISVL | PA |
| — | 215-430 | 1XXX2XXX3XXX5XXX6XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-433 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-438 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-440 | 6XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-441 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN39 | PA |
| — | 215-442 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN39 | PA |
| — | 215-443 | 1XXX6XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN39 | PA |
| — | 215-444 | 3XXX5XXX6XXX7XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN39 | PA |
| — | 215-448 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-451 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-452 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-453 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PERKASIE | PA |
| — | 215-454 | 0XXX2XXX6XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-455 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-456 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-457 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-462 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-463 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-464 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-465 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-466 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-467 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-468 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-471 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-472 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-473 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-474 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-476 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-477 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-481 | 1XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN34 | PA |
| — | 215-482 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-483 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-487 | 5XXX8XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-489 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | DOYLESTOWN | PA |
| — | 215-491 | 8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN45 | PA |
| — | 215-492 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-493 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | YARDLEY | PA |
| — | 215-496 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-497 | 1XXX2XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWTOWN | PA |
| — | 215-501 | 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.