AT&T Illinois — Number Ranges, OCNs & Bulk Identification
How to identify AT&T Illinois numbers at scale: operating company numbers (OCNs), state coverage, and line types across 2 analyzed AT&T Illinois numbers.
OCNs used by AT&T Illinois
Operating Company Numbers (OCNs) identify the carrier behind a number in LRN/LERG data. AT&T Illinois numbers map to these OCNs most often:
| OCN | Numbers analyzed |
|---|---|
| 9329 | 2 |
AT&T Illinois coverage by state
| State | Numbers analyzed |
|---|---|
| IL | 2 |
AT&T Illinois line types
| Line type | Numbers analyzed |
|---|---|
| RBOC | 2 |
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