- Source: List of highways numbered 503
The following highways are numbered 503:
Canada
Alberta Highway 503
Manitoba Provincial Road 503
Newfoundland and Labrador Route 503
Ontario Highway 503 (former)
Costa Rica
National Route 503
India
National Highway 503 (India)
Japan
Japan National Route 503
United States
County Road 503 (Brevard County, Florida)
Maryland Route 503 (former)
County Route 503 (New Jersey)
Ohio State Route 503
Washington State Route 503
Territories
Puerto Rico Highway 503
Kata Kunci Pencarian:
- 153 (angka)
- List of highways numbered 503
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