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A055069 Telephone country codes in use as of Jun 13 2000. 1
1, 7, 20, 27, 30, 31, 32, 33, 34, 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 81, 82, 84, 86, 90, 91, 92, 93, 94, 95, 98, 212, 213, 216, 218, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Not a well-defined sequence, of course! I have excluded certain country codes that have been assigned but are not yet in use (210 will be used by Morocco, for example).

LINKS

Table of n, a(n) for n=1..62.

Full list

EXAMPLE

1 = USA, 7 = Russia, 20 = Egypt, 27 = South Africa, etc.

CROSSREFS

Sequence in context: A022419 A070413 A015243 * A134863 A214924 A200773

Adjacent sequences:  A055066 A055067 A055068 * A055070 A055071 A055072

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Jun 13 2000

STATUS

approved

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Last modified April 21 21:03 EDT 2018. Contains 302877 sequences. (Running on oeis4.)