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Houston is not a country and thus does not have its own country code. The country code for the United States, Canada, and 18 assorted islands in or near the Caribbean, is +1. The area codes for Houston are +1 713, +1 281, +1 832, and, beginning in 2014, +1 346.

(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 Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)

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11y ago

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