There is no telephone country code +441.
Country code +44 is the United Kingdom, and the '1' is the first digit of the area code. Most geographic area codes for landlines in the UK begin with 1, although there are several area codes beginning with 2 (most prominently London's +44 20).
(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.)
The telephone area code 441 is for The Islands of Bermuda. Until October 1995 their code was 809 together with other Caribbean and Atlantic islands.
The country code and area code of Patuakhali, Bangladesh is 880, (0)441.
The country code and area code of Halach, Turkmenistan is 993, (8)441.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
The country code and area code of Agua Zarca, Mexico is 52, (01)441.
The country code and area code of Azarbayejan-Gharbi, Iran is 98, (0)441.
The country code and area code of El Gedarif, Sudan is 249, (0)441.
There is no 909 country code.
There is no telephone country code +897, nor +89, nor any other country code beginning with +89. There are no valid telephone numbers beginning with +89.
Gibraltar is country code +350.
Moldova is country code +373.