Related Clues:

• Map line
• Beat
• Part of an itin.
• I-80, e.g.: Abbr.
• Mailman's beat
• Road with a no.
• Highway
• Numbered rd.
• I-95, e.g.: Abbr.
• 72-Across recommendation
• A mail carrier has one: Abbr.
• Postal abbr.
• Delivery person's path
• 66, e.g.: Abbr.
• Itinerary abbr.