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 717
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 717-311 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA |
| — | 717-312 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON NORTH, INC. - PA (CONTEL) | 0170 | HERSHEY | PA |
| — | 717-313 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - PA | 547E | YORK | PA |
| — | 717-314 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LANCASTER | PA |
| — | 717-315 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | HARISBGZN1 | PA |
| — | 717-319 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HARISBGZN1 | PA |
| — | 717-321 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | WINDSTREAM D & E SYSTEMS, INC. - PA | 4114 | GETTYSBURG | PA |
| — | 717-322 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | AIRVILLE | PA |
| — | 717-323 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | MTHOLLYSPG | PA |
| — | 717-324 | 4XXX5XXX8XXX9XXX which blocks → | METROPCS, INC. | 5562 | YORK | PA |
| — | 717-326 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - PA | 547E | YORK | PA |
| — | 717-328 | 7XXX8XXX · 2 holders which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | MERCERSBG | PA |
| — | 717-329 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HARISBGZN1 | PA |
| — | 717-330 | not yet reported which blocks → | D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | LANCASTER | PA |
| — | 717-332 | not yet reported which blocks → | D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | YORK | PA |
| — | 717-334 | not yet reported which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | GETTYSBURG | PA |
| — | 717-335 | 1XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | WINDSTREAM D&E, INC. | 0165 | DENVER | PA |
| — | 717-336 | not yet reported which blocks → | WINDSTREAM D&E, INC. | 0165 | DENVER | PA |
| — | 717-337 | not yet reported which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | GETTYSBURG | PA |
| — | 717-338 | not yet reported which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | GETTYSBURG | PA |
| — | 717-340 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MILLERSVL | PA |
| — | 717-342 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | COLUMBIA | PA |
| — | 717-347 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | LOGANVILLE | PA |
| — | 717-348 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEWISTOWN | PA |
| — | 717-349 | 1XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | DRY RUN | PA |
| — | 717-351 | 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | FRONTIER COMMUNICATIONS OF PENNSYLVANIA, LLC | 0168 | NEWHOLLAND | PA |
| — | 717-352 | 1XXX5XXX6XXX · 2 holders which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | FAYETTEVL | PA |
| — | 717-354 | not yet reported which blocks → | FRONTIER COMMUNICATIONS OF PENNSYLVANIA, LLC | 0168 | NEWHOLLAND | PA |
| — | 717-355 | not yet reported which blocks → | FRONTIER COMMUNICATIONS OF PENNSYLVANIA, LLC | 0168 | NEWHOLLAND | PA |
| — | 717-358 | 8XXX9XXX · 2 holders which blocks → | CTSI, INC. - PA | 7513 | LANCASTER | PA |
| — | 717-359 | 3XXX6XXX which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | LITTLESTN | PA |
| — | 717-360 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CHAMBERSBG | PA |
| — | 717-361 | not yet reported which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | ELIZABTHTN | PA |
| — | 717-362 | not yet reported which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | ELIZABTHVL | PA |
| — | 717-364 | 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | PAETEC ITEL, LLC | 829J | HARISBGZN1 | PA |
| — | 717-365 | 2XXX5XXX · 2 holders which blocks → | COMMONWEALTH TELEPHONE COMPANY LLC | 0161 | GRATZ | PA |
| — | 717-367 | not yet reported which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | ELIZABTHTN | PA |
| — | 717-369 | 7XXX8XXX · 2 holders which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | ST THOMAS | PA |
| — | 717-371 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LANCASTER | PA |
| — | 717-372 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHAMBERSBG | PA |
| — | 717-373 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | BROGUE | PA |
| — | 717-375 | 3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | MARION | PA |
| — | 717-377 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CHAMBERSBG | PA |
| — | 717-378 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | RED LION | PA |
| — | 717-379 | not yet reported which blocks → | D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | HARISBGZN1 | PA |
| — | 717-380 | 2XXX which blocks → | METROPCS, INC. | 5562 | LANCASTER | PA |
| — | 717-381 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LANCASTER | PA |
| — | 717-382 | 0XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | VERIZON NORTH, INC. - PA | 0169 | FAWN GROVE | PA |
| — | 717-384 | 0–9 XXXall 10 · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MANCHESTER | PA |
| — | 717-385 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CARLISLE | 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.