Exchange · West Chicago, IL
(630) 520-xxxx
Every number from 630-520-0000 to 630-520-9999. NANPA records the exchange as assigned to AT&T for West Chicago, IL. Robocall and scam operations often use many numbers from one exchange, so if one number here is a shady call, its neighbors deserve a second look.
Reported numbers starting 630-520
About the 630-520 exchange
630-520 is an exchange (the first six digits of a phone number) in area code 630, which covers Illinois. NANPA, which runs the North American Numbering Plan, assigned it to AT&T for the West Chicago, IL rate center. Numbers from this carrier are usually VoIP / internet phone lines.
People keep their number when they move or switch carrier, so this is where the number was first assigned, not where the caller is today. Local time for 630-520 numbers is usually Central time. Scammers can also fake (spoof) any number, so a call that shows a 630-520 number may not come from AT&T at all.