Phone numbers in Robinson, Illinois
Robinson has 7 phone prefixes in area code 618.
Biggest holders: AT&T Mobility, Frontier, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 57%
- Local phone company 29%
- Internet / business phone carrier 14%
Every prefix in Robinson
Search the first six digits of a number in this list. If it's here, the number started in Robinson with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 618-421 | AT&T Mobility | Mobile carrier | 2002 |
| 618-469 | Mediacom Telephony Of Illinois | Internet / business phone carrier | 2010 |
| 618-544 | Frontier | Local phone company | – |
| 618-546 | Frontier | Local phone company | – |
| 618-553 | Verizon Wireless | Mobile carrier | – |
| 618-554 | Verizon Wireless | Mobile carrier | – |
| 618-562 | AT&T Mobility | Mobile 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.