Telephone numbers in Germany 8 geographic zones |NSN length||3
to 12| |Typical format||(0xx…) xxx…| |International call
prefix||00| The regulation of telephone numbers in Germany is
the responsibility of the Federal Network Agency (German:
Bundesnetzagentur, BNetzA) of the German government. The agency
has a mandate to telecommunications in Germany and other
infrastructure systems. Germany has an open telephone numbering
plan. There are no fixed lengths for either area codes or
subscriber telephone numbers, meaning that some subscriber
numbers may be as short as two digits. As a result, dialing
sequences are generally of a variable length, except for some
non-geographic area codes for which subscriber numbers use a
fixed-length format. It is not possible to determine
unambiguously the end of a phone number from a prefix or the
digits already dialed. This feature allows the extension of the
length of phone numbers without revoking or changing existing
numbers. The German telephone network uses 5200 geographica