Phone numbers in River Grove, Illinois
River Grove has 14 phone prefixes in area code 708.
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.
- Local phone company 36%
- Internet / business phone carrier 64%
Every prefix in River Grove
Search the first six digits of a number in this list. If it's here, the number started in River Grove with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 708-395 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 708-402 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 708-437 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 708-452 | AT&T (local phone) | Local phone company | – |
| 708-453 | AT&T (local phone) | Local phone company | – |
| 708-456 | AT&T (local phone) | Local phone company | – |
| 708-457 | AT&T (local phone) | Local phone company | – |
| 708-583 | AT&T (local phone) | Local phone company | – |
| 708-695 | Bandwidth | Internet / business phone carrier | – |
| 708-697 | Teleport Communications America | Internet / business phone carrier | – |
| 708-716 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 708-779 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 708-842 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 708-869 | Onvoy | Internet / business phone carrier | – |
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.