Local Calling Guide
Area code/prefix search
NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]
NXX: 375
| NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
|---|---|---|---|---|---|---|---|---|---|
| 815-375 | A | De Kalb | IL | DKLBILRS3MD | 6265 UNITED STATES CELLULAR - IL | 364 | |||
| 815-375 | 0 | De Kalb | IL | 6265 UNITED STATES CELLULAR - IL | 364 | ||||
| 815-375 | 1 | De Kalb | IL | 6265 UNITED STATES CELLULAR - IL | 364 | ||||
| 815-375 | 2 | De Kalb | IL | 6265 UNITED STATES CELLULAR - IL | 364 | ||||
| 815-375 | 3 | De Kalb | IL | 6265 UNITED STATES CELLULAR - IL | 364 | ||||
| 815-375 | 4 | De Kalb | IL | 5562 METROPCS, INC. | 364 | 2010-05-19 | |||
| 815-375 | 5 | De Kalb | IL | 318J COMCAST IP PHONE, LLC | 364 | 2016-08-22 | |||
| 815-375 | 6 | De Kalb | IL | 624H ONVOY SPECTRUM, LLC | 364 | 2022-01-10 | |||
| 815-375 | 7 | De Kalb | IL | 624H ONVOY SPECTRUM, LLC | 364 | 2022-01-10 | |||
| 815-375 | 8 | De Kalb | IL | 6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 364 | 2017-10-10 | |||
| 815-375 | 9 | De Kalb | IL | 6265 UNITED STATES CELLULAR - IL | 364 |
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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