NumberResearchRecent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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, last 30 days
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Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 412-259 | 0XXX2XXX3XXX5XXX6XXX9XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN16 | PA |
| — | 412-260 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-261 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-262 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN15 | PA |
| — | 412-263 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-264 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN15 | PA |
| — | 412-266 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-268 | 0XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-269 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN15 | PA |
| — | 412-270 | not yet reported which blocks → | SPOK, INC. | 6630 | PTGSBNZN14 | PA |
| — | 412-271 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON4 | PA |
| — | 412-272 | not yet reported which blocks → | SPOK, INC. | 6630 | PTGSBNZN14 | PA |
| — | 412-273 | 0XXX2XXX5XXX8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON4 | PA |
| — | 412-276 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN14 | PA |
| — | 412-278 | 7XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN14 | PA |
| — | 412-279 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN14 | PA |
| — | 412-280 | not yet reported which blocks → | SPOK, INC. | 6630 | PTTSBGZON1 | PA |
| — | 412-281 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-282 | 0XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON3 | PA |
| — | 412-283 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | PTGSBNZN12 | PA |
| — | 412-285 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-287 | none assigned yet which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| — | 412-288 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-289 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | INDIANA | PA |
| — | 412-291 | 0XXX8XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-292 | none assigned yet which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | PTGSBNZN13 | PA |
| — | 412-293 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - PA | 547E | PTGSBNZN14 | PA |
| — | 412-296 | none assigned yet which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | WASHINGTON | PA |
| — | 412-297 | 1XXX2XXX3XXX6XXX9XXX which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| — | 412-298 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| — | 412-299 | 5XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTGSBNZN15 | PA |
| — | 412-300 | not yet reported which blocks → | SPOK, INC. | 6630 | PTGSBNZN14 | PA |
| — | 412-302 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-303 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-306 | 8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON6 | PA |
| — | 412-307 | 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | PTTSBGZON2 | PA |
| — | 412-308 | 0XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN12 | PA |
| — | 412-309 | none assigned yet which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | INDIANA | PA |
| — | 412-310 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| — | 412-311 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA |
| — | 412-312 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON2 | PA |
| — | 412-313 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON2 | PA |
| — | 412-314 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - PA | 547E | PTGSBNZN10 | PA |
| — | 412-316 | 5XXX6XXX7XXX which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| — | 412-317 | 3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN22 | PA |
| — | 412-318 | 5XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN17 | PA |
| — | 412-319 | 0XXX2XXX which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTGSBNZN13 | PA |
| — | 412-320 | 0XXX1XXX3XXX5XXX6XXX9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-321 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
| — | 412-322 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PTTSBGZON1 | PA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.