geoip_region_name_by_code
PECL geoip >= 1.0.4
geoip_region_name_by_code - Returns the region name for some country and region code combo
Example #1 A geoip_region_name_by_code example using region code for US/Canada
Result: Region name for CA/QC is: Quebec
Example #2 A geoip_region_name_by_code example using FIPS codes
Result: Region name for JP/01 is: Aichi