AT&T — Number Ranges, OCNs & Bulk Identification
How to identify AT&T numbers at scale: operating company numbers (OCNs), state coverage, and line types across 21,765 analyzed AT&T numbers.
OCNs used by AT&T
Operating Company Numbers (OCNs) identify the carrier behind a number in LRN/LERG data. AT&T numbers map to these OCNs most often:
| OCN | Numbers analyzed |
|---|---|
| 6534 | 8,605 |
| 4036 | 4,885 |
| 6010 | 4,143 |
| 6214 | 4,091 |
| 9533 | 11 |
| 9417 | 10 |
| 7148 | 8 |
| 9740 | 5 |
| 516C | 5 |
| 7314 | 1 |
| 7218 | 1 |
AT&T coverage by state
| State | Numbers analyzed |
|---|---|
| TX | 2,017 |
| CA | 1,814 |
| PA | 1,263 |
| NY | 1,048 |
| IL | 1,045 |
| FL | 877 |
| MI | 843 |
| OH | 753 |
| IN | 720 |
| MO | 676 |
| MA | 563 |
| GA | 557 |
| KY | 539 |
| NC | 537 |
| TN | 523 |
AT&T line types
| Line type | Numbers analyzed |
|---|---|
| WIRELESS | 21,724 |
| RBOC | 26 |
| CLEC | 10 |
| IPES | 5 |
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