abh/geoip — pull request #12 by davemarchevsky (2013-10-23 15:39:26+00:00)
Title: Add dma_code / metro_code to GeoIPRecord

It's possible to do this in golang, just very kludgey. Will push up some code shortly.

Going off of https://github.com/maxmind/geoip-api-python/blob/master/py_GeoIP.c#L321 .