North American area code +1 456 is used for 56Kbps ISDN data connections from other countries into the United States. If an international caller places an ISDN call to an ordinary number in the U.S., there is no guarantee that the circuit will be any better than voice-grade. Using a 456 number guarantees a 56K data-grade connection. The party on the U.S. end of the call needs to pre-arrange the 456 number with their telephone provider.
International country code +45 is Denmark.
(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.)
There is no telephone area code +1 459 in North America (USA, Canada, etc.).
Telephone country code +45 is Denmark. A number beginning +45 9 may be a landline, a mobile, or a premium-rate number, depending on the next digit.
(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.)
There is no area code 457 in North America.
An international number beginning with +45 is in Denmark.
The country code and area code of Chalchihuites, Mexico is 52, (01)457.
The country code and area code of Ronneby, Sweden is 46, (0)457.
The country code and area code of Velizquez, Uruguay is 598, (0)457.
The country code and area code of Jiagedaqi- HL, China is 86, (0)457.
There is no telephone country code +457 or 00 457, but +45 is Denmark, and there are valid numbers beginning +45 7. Numbers beginning with +45 70 are "split-charge" numbers, which may incur higher call charges than ordinary numbers. Numbers beginning with +45 71 are mobiles. All other numbers beginning with +45 72 through +45 79 are ordinary landline numbers.(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 country code and area code of Abottabad, Pakistan is 92, (0)992.
The area of Eidsvoll is 457 square kilometers.
The area of Chorwon is 457 square kilometers.
The area of Øvre Eiker is 457 square kilometers.
The area of Tinh Gia District in Thanh Hoa Province, Vietnam is approximately 43.7 square miles (113.25 square kilometers).
The factors of 457 are: 1 457 (457 is a prime number )
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