Prefix 312-577
Area Code 312 Details
County: COOK
| Code | Other Cities | Timezone | County | Latitude | Longitude | Daylight Saving Time | Connection Type | NXX Created At | Zip Code | Fips | Lata | Carrier | Overlay | Rate Center | Ocn | Coverage Area | Active |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 577 | 6 | COOK | 41.87360000 | -87.63730000 | L | 1997-01-11 00:00:00 | 60604 | 17031 | 358 | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CHICGOZN01 | 7196 | CHICAGO |
Phone Numbers
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