Local Calling Guide
Area code/prefix search
Derby, IA
NPA-NXX | BLOCK | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|
641-533 | A | LEONIAXODS0 | 1888 GRAND RIVER MUTUAL TEL CO | 632 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
Sponsored by: ISP Telecom
Like this site? We accept donations via PayPal.