Note a promising free list of 29 alive public Colombia proxies. Download it:
190.249.158.128:60048
190.90.20.229:32180
190.60.207.194:49237
190.255.201.253:41027
190.182.88.18:55207
190.147.137.66:58763
190.145.76.18:33543
190.145.183.22:36149
200.35.34.113:31687
191.91.48.4:43712
179.60.243.114:54579
186.159.1.25:45334
186.146.1.242:34730
181.129.51.147:46940
186.0.93.68:32641
190.90.100.205:41000
190.90.143.245:44127
190.69.27.182:60491
186.159.3.193:51100
190.65.221.46:56092
138.0.89.179:48356
190.255.49.83:46354
181.129.47.26:58397
200.110.172.44:44565
181.58.87.224:30190
190.184.144.26:36105
190.157.6.42:51541
190.156.241.23:50629
201.184.162.242:53371