Phone numbers in Bethalto, Illinois
Bethalto has 4 phone prefixes in area code 618.
Biggest holders: AT&T (local phone), MCImetro (Verizon Business), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 25%
- Internet / business phone carrier 50%
Every prefix in Bethalto
Search the first six digits of a number in this list. If it's here, the number started in Bethalto with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 618-377 | AT&T (local phone) | Local phone company | – |
| 618-693 | MCImetro (Verizon Business) | Internet / business phone carrier | 2013 |
| 618-717 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 618-870 | Boost / Virgin Mobile | Mobile carrier | 2022 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.