Where is telephone country code 1 226?

Country code +250 (dialed as 00 250 from many places) is Rwanda.

Landline numbers begin with +250 25.

Mobile numbers begin with +250 72, +250 75, or +250 78.

VSAT numbers begin with +250 06.

(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)

Note that the term "zip code" applies to mailing addresses, not to telephone numbers.