Where is telephone country code 150?

Telephone country code +1 (dialed as 00 1 from many places) is North America (USA, Canada, etc.), but you need the next three digits to narrow down the location.

• +1 500 = Personal Communications Services (personal "follow-me" numbers, etc.)
• +1 501 = Little Rock, AR
• +1 502 = Louisville/Frankfort, KY
• +1 503 = Portland, OR
• +1 504 = New Orleans, LA
• +1 505 = Albuquerque, NM
• +1 506 = New Brunswick, Canada (entire province)
• +1 507 = Rochester, MN
• +1 508 = Cape Cod, MA
• +1 509 = Spokane, WA

(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.)