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Section, Region, and Area data provided by OASections.com courtesy of Robert Higgins.

  • 26 Areas (1938-48)

    • Area F

      Area F
      26 Areas (1938-48)

    • Area I

      Area I
      26 Areas (1938-48)

    • BETA
      Area K

      Area K
      26 Areas (1938-48)

    • Area Z

      Area Z
      26 Areas (1938-48)

  • 12 Regions (1949-72)

    • BETA
      No Flap Image for Region 3

      Region 3
      12 Regions (1949-72)

    • Region 10

      Region 10
      12 Regions (1949-72)

    • Area 2-A

      Area 2-A
      12 Regions (1949-72)

    • Area 2-B

      Area 2-B
      12 Regions (1949-72)

    • Area 2-C

      Area 2-C
      12 Regions (1949-72)

    • Area 2-F

      Area 2-F
      12 Regions (1949-72)

    • Area 2-G

      Area 2-G
      12 Regions (1949-72)

    • Area 2-J

      Area 2-J
      12 Regions (1949-72)

    • Area 3-A

      Area 3-A
      12 Regions (1949-72)

    • BETA
      Area 3-B

      Area 3-B
      12 Regions (1949-72)

    • Area 3-C

      Area 3-C
      12 Regions (1949-72)

    • BETA
      No Flap Image for Area 3-D

      Area 3-D
      12 Regions (1949-72)

    • Area 3-E

      Area 3-E
      12 Regions (1949-72)

    • BETA
      Area 3-F

      Area 3-F
      12 Regions (1949-72)

    • Area 4-B

      Area 4-B
      12 Regions (1949-72)

    • Area 4-G

      Area 4-G
      12 Regions (1949-72)

    • Area 6-A

      Area 6-A
      12 Regions (1949-72)

    • Area 6-B

      Area 6-B
      12 Regions (1949-72)

    • BETA
      Area 6-C

      Area 6-C
      12 Regions (1949-72)

    • BETA
      Area 7-A

      Area 7-A
      12 Regions (1949-72)

    • BETA
      No Flap Image for Section 7-G

      Section 7-G
      12 Regions (1949-72)

    • BETA
      Area 7-J

      Area 7-J
      12 Regions (1949-72)

    • BETA
      No Flap Image for Area 11-B

      Area 11-B
      12 Regions (1949-72)

    • Area 11-C

      Area 11-C
      12 Regions (1949-72)

    • Area 12-B

      Area 12-B
      12 Regions (1949-72)

    • Area 12-H

      Area 12-H
      12 Regions (1949-72)

    • BETA
      No Flap Image for Area 7-7

      Area 7-7
      12 Regions (1949-72)

    • Area IKI

      Area IKI
      12 Regions (1949-72)

    • Area OKI

      Area OKI
      12 Regions (1949-72)

  • Six Regions (1973-92)

    • BETA
      No Flap Image for Section NE-1A

      Section NE-1A
      Six Regions (1973-92)

    • Section NE-2B

      Section NE-2B
      Six Regions (1973-92)

    • BETA
      No Flap Image for NE-2C Section

      NE-2C Section
      Six Regions (1973-92)

    • Section NE-3A

      Section NE-3A
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section NE-3E

      Section NE-3E
      Six Regions (1973-92)

    • BETA
      Section NE-4B

      Section NE-4B
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section NE-5

      Section NE-5
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section NE-5A

      Section NE-5A
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section NE-5B

      Section NE-5B
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section NE-5C

      Section NE-5C
      Six Regions (1973-92)

    • Section NE-6

      Section NE-6
      Six Regions (1973-92)

    • Section NE-7A

      Section NE-7A
      Six Regions (1973-92)

    • No Flap Image for Section NE-7B

      Section NE-7B
      Six Regions (1973-92)

    • Section SE-1

      Section SE-1
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section SE-2A

      Section SE-2A
      Six Regions (1973-92)

    • Section SE-2B

      Section SE-2B
      Six Regions (1973-92)

    • BETA
      Section SE-3B

      Section SE-3B
      Six Regions (1973-92)

    • Section SE-5

      Section SE-5
      Six Regions (1973-92)

    • Section SE-6

      Section SE-6
      Six Regions (1973-92)

    • Section SE-7

      Section SE-7
      Six Regions (1973-92)

    • BETA
      Section SE-8

      Section SE-8
      Six Regions (1973-92)

    • Section SE-9

      Section SE-9
      Six Regions (1973-92)

    • Section NC-2A

      Section NC-2A
      Six Regions (1973-92)

    • BETA
      Section EC-2B

      Section EC-2B
      Six Regions (1973-92)

    • BETA
      Section EC-5B

      Section EC-5B
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section SC-6

      Section SC-6
      Six Regions (1973-92)

    • Section SE 3A

      Section SE 3A
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section W-1B

      Section W-1B
      Six Regions (1973-92)

    • Section W-1C

      Section W-1C
      Six Regions (1973-92)

    • Section W-2A

      Section W-2A
      Six Regions (1973-92)

    • BETA
      No Flap Image for Section W-5A

      Section W-5A
      Six Regions (1973-92)

  • Four Regions (1993-2021)

    • C-1 Section

      C-1 Section
      Four Regions (1993-2021)

    • Section C-1A

      Section C-1A
      Four Regions (1993-2021)

    • Section C-1B

      Section C-1B
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section C-2A

      Section C-2A
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section C-2C

      Section C-2C
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section C-4A

      Section C-4A
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section C-4B

      Section C-4B
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section C-5B

      Section C-5B
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-1

      Section NE-1
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-1A

      Section NE-1A
      Four Regions (1993-2021)

    • Section NE-2A

      Section NE-2A
      Four Regions (1993-2021)

    • Section NE-2B

      Section NE-2B
      Four Regions (1993-2021)

    • Section NE-2C

      Section NE-2C
      Four Regions (1993-2021)

    • Section NE-3A

      Section NE-3A
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-4

      Section NE-4
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-4B

      Section NE-4B
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-4C

      Section NE-4C
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-5

      Section NE-5
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section NE-5B

      Section NE-5B
      Four Regions (1993-2021)

    • Section NE-6A

      Section NE-6A
      Four Regions (1993-2021)

    • Section NE-6B

      Section NE-6B
      Four Regions (1993-2021)

    • Section NE-7A

      Section NE-7A
      Four Regions (1993-2021)

    • Section NE-7B

      Section NE-7B
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section SR-3

      Section SR-3
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section SR-4S

      Section SR-4S
      Four Regions (1993-2021)

    • Section SR-5

      Section SR-5
      Four Regions (1993-2021)

    • BETA
      Section SR-6

      Section SR-6
      Four Regions (1993-2021)

    • Section SR-6A

      Section SR-6A
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section SR-6B

      Section SR-6B
      Four Regions (1993-2021)

    • BETA
      Section SR-6N

      Section SR-6N
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section SR-6S

      Section SR-6S
      Four Regions (1993-2021)

    • Section SR-7

      Section SR-7
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section SR-7A

      Section SR-7A
      Four Regions (1993-2021)

    • Section SR-7B

      Section SR-7B
      Four Regions (1993-2021)

    • BETA
      Section W-1B

      Section W-1B
      Four Regions (1993-2021)

    • Section W-1C

      Section W-1C
      Four Regions (1993-2021)

    • Section W-1E

      Section W-1E
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section W-1N

      Section W-1N
      Four Regions (1993-2021)

    • BETA
      No Flap Image for Section W-2S

      Section W-2S
      Four Regions (1993-2021)

    • Section W-3S

      Section W-3S
      Four Regions (1993-2021)

    • Section W-6P

      Section W-6P
      Four Regions (1993-2021)

    • Section W-3C/W6B

      Section W-3C/W6B
      Four Regions (1993-2021)

  • Two Regions (2022-)

    • Section E3

      Section E3
      Two Regions (2022-)

    • BETA
      No Flap Image for Section E6

      Section E6
      Two Regions (2022-)

    • BETA
      No Flap Image for Section E7

      Section E7
      Two Regions (2022-)

    • Section E8

      Section E8
      Two Regions (2022-)

    • Section E9

      Section E9
      Two Regions (2022-)

    • Section E10

      Section E10
      Two Regions (2022-)

    • Section E11

      Section E11
      Two Regions (2022-)

    • Section E12

      Section E12
      Two Regions (2022-)

    • Section E13

      Section E13
      Two Regions (2022-)

    • Section E14

      Section E14
      Two Regions (2022-)

    • Section E18

      Section E18
      Two Regions (2022-)

    • Section E21

      Section E21
      Two Regions (2022-)

    • Section G10

      Section G10
      Two Regions (2022-)

    • Section G14

      Section G14
      Two Regions (2022-)

    • BETA
      No Flap Image for Section G15

      Section G15
      Two Regions (2022-)

    • Eastern Region

      Eastern Region
      Two Regions (2022-)

    • Section G17S

      Section G17S
      Two Regions (2022-)

    • No Flap Image for Gateway Region

      Gateway Region
      Two Regions (2022-)