312-748 Prefix — Chicgozn01, Illinois

Phone numbers starting with 312-748 are based in Chicgozn01, Illinois, primarily served by USA Mobility Wireless, Inc..

Recently looked-up numbers in 312-748

• 312-748-1331

More about this region

Area code 312 directory · About area code 312 · Get a IL phone number

Last updated: June 30, 2026