List of highways numbered 666
The following highways are numbered 666:
Belgium
- The pilgrimage centre of Banneux in Belgium is located on the N666 road.
Canada
- Alberta Highway 666
- Ontario Highway 666 (former)
Ireland
Italy
- Strada regionale 666 di Sora (formerly strada statale 666 di Sora)
Netherlands
- Provinciale weg 666 NL Wiki Page
Philippines
- N666 highway (Philippines)
Sweden
- Länsväg 666, in Uppland, eastbound from Alunda. Z 666 Wiki SV
United Kingdom
United States
- U.S. Route 666 (former, renumbered in 2003 to US 191 and US 491)
- Florida State Road 666
- Maryland Route 666 (former)
- Ohio State Route 666
- Pennsylvania Route 666
- Puerto Rico Highway 666
- Farm to Market Road 666
| Preceded by 665 |
Lists of highways 666 |
Succeeded by 667 |