+98 is the telephone country code for Iran. A number beginning with +98 9 is a mobile from Iran.
(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.)
zip code of iran:+98zip code of Sanandaj city in Iran: 871
Mashhad is in Iranian telephone area code 0511, which is +98 511 in international format.
"City code" is another term for a telephone area code, especially in the context of a telephone number in international format.
41376
01 is the code for Dublin
That depends on whether you are talking about Iran or Uganda. Please specify the country in your question.
It has the area code 082.
Telephone country code +93 is Afghanistan, and area code +93 25 (Afghan domestic telephone area code 025) is the city of Logar, south of Kabul.
There are no telephone city codes in Australia beginning with 1.
816
0032 is the international code for Belgium. There doesn't appear to be a town or city starting with 33.
Area code 981 is currently unassigned and not in use in the North American Numbering Plan (NANP). Area codes in the NANP are typically assigned to specific geographic regions in the United States, Canada, and other countries. If area code 981 were to be assigned in the future, it would be announced by the relevant telecommunications authorities.