AT&T Michigan — Number Ranges, OCNs & Bulk Identification
How to identify AT&T Michigan numbers at scale: operating company numbers (OCNs), state coverage, and line types across 6 analyzed AT&T Michigan numbers.
OCNs used by AT&T Michigan
Operating Company Numbers (OCNs) identify the carrier behind a number in LRN/LERG data. AT&T Michigan numbers map to these OCNs most often:
| OCN | Numbers analyzed |
|---|---|
| 9323 | 6 |
AT&T Michigan coverage by state
| State | Numbers analyzed |
|---|---|
| MI | 6 |
AT&T Michigan line types
| Line type | Numbers analyzed |
|---|---|
| RBOC | 6 |
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