Small rectangle slots on top of sign posts before traffic sign

Sometimes you can find a black-and-white circle with this highway shield on the back of road signs. It can also be a white sticker. With current Street View cameras, it is impossible to read the information on them, but their presence is helpful.

This print/sticker is unique to Chile.

Chile (+56)

• Total Length: Fixed length of 9 digits for all numbers
• Mobile Numbers: Always start with 9 followed by 8 digits (e.g., +56 9 XXXX XXXX).
• Landline Numbers: Start with an area code (e.g., 2 for Santiago) followed by the rest of the digits to total 9! Always 9!

Other info:

• Toll free prefix 800

Shape: Horizontal or vertical small rectangle

Color: White

Shape: shield-shape with five edges

• Top center point: The highest peak of the shield's upper curve.
• Two upper "shoulders": Points where the top curve meets the straight vertical sides.
• Two lower "shoulders": Points where the straight vertical sides curve inward towards the bottom point.

Shape: Thin rectangles

Color: Red-and-white diagonal stripes

Camera: Generation 3

Visibility: The rear of the usual car is visible with thin black line

Color: White

Domain: .cl

Type: Private

Shape: Long

Background: White

Text: Black

Shape: Rectangle with slots on both sides

Material: Concrete

Holes: Small circle holes on the top

Camera: Generation 4

Car: The rear of the car is visibly blurred

Color: Blue

Camera: Generation 4

Car: The rear of the car is visibly blurred

Color: White

Camera: Generation 3

Visibility: The rear of the usual car is visible

Color: White

Shape: Octagonal

Color: Red background, with or without white border

Text: White 'PARE' text

Type: Commercial

Shape: Long

Background: Yellow/orange

Text: Black

Shape: Inverted triangle

Color: Thick red border and white background