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U.S. Interstate Highways - Sudden Death (Hard)

Identify all route numbers currently assigned to primary interstate highways in the United States. These are all one-digit or two-digit designations following the I-# or I-## format.

Including the Alaska and Hawaii primary interstates (A-# and H-#)

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Last updated: April 19, 2026

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First submitted	December 3, 2024
Times taken	901
Average score	47.9%
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Sudden Death. Clicking 5 wrong answers ends the quiz!

I-99

I-98

I-97

I-96

I-95

I-94

I-93

I-92

I-91

I-90

I-89

I-88

I-87

I-86

I-85

I-84

I-83

I-82

I-81

I-80

I-79

I-78

I-77

I-76

I-75

I-74

I-73

I-72

I-71

I-70

I-69

I-68

I-67

I-66

I-65

I-64

I-63

I-62

I-61

I-60

I-59

I-58

I-57

I-56

I-55

I-54

I-53

I-52

I-51

I-50

I-49

I-48

I-47

I-46

I-45

I-44

I-43

I-42

I-41

I-40

I-39

I-38

I-37

I-36

I-35

I-34

I-33

I-32

I-31

I-30

I-29

I-28

I-27

I-26

I-25

I-24

I-23

I-22

I-21

I-20

I-19

I-18

I-17

I-16

I-15

I-14

I-13

I-12

I-11

I-10

I-9

I-8

I-7

I-6

I-5

I-4

I-3

I-2

I-1

H-5

H-4

H-3

H-2

H-1

A-5

A-4

A-3

A-2

A-1

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