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.
Most active assignees, all time — NPA 724
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 724-304 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWKNSNGTN | PA |
| — | 724-307 | 0XXX1XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | OAKDALE | PA |
| — | 724-308 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | SHARON | PA |
| — | 724-309 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENSBURG | PA |
| — | 724-310 | 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | MONONGAHLA | PA |
| — | 724-311 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA |
| — | 724-312 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEAVER FLS | PA |
| — | 724-313 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | BLACK LICK | PA |
| — | 724-314 | 0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | MONESSEN | PA |
| — | 724-315 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLENWILLRD | PA |
| — | 724-316 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CRIDERSCOR | PA |
| — | 724-321 | none assigned yet which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | GIBSONIA | PA |
| — | 724-322 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | UNIONTOWN | PA |
| — | 724-323 | 0XXX1XXX8XXX9XXX · 3 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | UNIONTOWN | PA |
| — | 724-324 | not yet reported which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | MT MORRIS | PA |
| — | 724-325 | not yet reported which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | EXPORT | PA |
| — | 724-326 | 2XXX3XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | FAYETTE CY | PA |
| — | 724-327 | not yet reported which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | EXPORT | PA |
| — | 724-329 | 3XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | FARMINGTON | PA |
| — | 724-330 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 8 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | CALIFORNIA | PA |
| — | 724-331 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | GREENSBURG | PA |
| — | 724-333 | 1XXX8XXX9XXX · 3 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | NEW CASTLE | PA |
| — | 724-334 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWKNSNGTN | PA |
| — | 724-335 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWKNSNGTN | PA |
| — | 724-336 | not yet reported which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | ENONVALLEY | PA |
| — | 724-337 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWKNSNGTN | PA |
| — | 724-338 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | CANONSBURG | PA |
| — | 724-339 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEWKNSNGTN | PA |
| — | 724-340 | 1XXX2XXX4XXX7XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | BOLIVAR | PA |
| — | 724-341 | not yet reported which blocks → | SPOK, INC. | 6630 | GREENSBURG | PA |
| — | 724-342 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SHARON | PA |
| — | 724-343 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | BLAIRSVL | PA |
| — | 724-344 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| — | 724-345 | 1XXX2XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → | VERIZON NORTH, INC. - PA (QUAKER ST) | 0201 | BUFFALO | PA |
| — | 724-346 | 8XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SHARON | PA |
| — | 724-347 | 8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SHARON | PA |
| — | 724-348 | 1XXX2XXX3XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | FINLEYVL | PA |
| — | 724-349 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | INDIANA | PA |
| — | 724-350 | 3XXX8XXX · 2 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | WASHINGTON | PA |
| — | 724-352 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF PENNSYLVANIA CO | 0193 | SAXONBURG | PA |
| — | 724-353 | 4XXX5XXX6XXX · 3 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF PENNSYLVANIA CO | 0193 | SAXONBURG | PA |
| — | 724-354 | 1XXX6XXX7XXX8XXX · 4 holders which blocks → | WINDSTREAM PENNSYLVANIA, INC. | 0176 | ELDERTON | PA |
| — | 724-355 | 5XXX6XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | BUTLER | PA |
| — | 724-356 | not yet reported which blocks → | HICKORY TEL. CO. | 0171 | HICKORY | PA |
| — | 724-357 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | INDIANA | PA |
| — | 724-360 | 1XXX which blocks → | CONSOLIDATED COMMUNICATIONS OF PENNSYLVANIA CO | 0193 | SAXONBURG | PA |
| — | 724-361 | 3XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - PA | 547E | MONESSEN | PA |
| — | 724-362 | 0XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MONONGAHLA | PA |
| — | 724-365 | 3XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MTPLEASANT | PA |
| — | 724-366 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | UNIONTOWN | PA |
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.