A metro code is a zip code like in the states, e.g. 24100
What data areaCode and metroCode columns contain for in maxmind?
문제
As i inderstand area code - is regional telephone code, right? What for metro code column stays for then?
해결책 2
다른 팁
Metro Code is a DMA code like "803" for Los Angeles, as defined by Google AdWords. Area code is, indeed, the telephone prefix after the country code.
https://developers.google.com/adwords/api/docs/appendix/cities-DMAregions
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