From their website:
COMSATS Internet service is a strategic business unit of COMSATS Pakistan. Through our high speed, dedicated nation-wide network, we provide Internet access of utmost quality. Our specialty in LAN & WAN connectivity gives us an edge over our competitors. The Sun, Microsoft, Intel, Compaq and Cisco System's certified consultants are constantly engaged in enhancing our network capabilities. COMSATS employ a team of more than 200 personnel in its countrywide network of ten major cities. The international connectivity to US Tier-1 IP backbones by submarine cable makes COMSATS the largest Internet Service Provider of Pakistan.
Ping Sweep shows these hosts up on subnet 32: 1,63
Ping Sweep shows these hosts up on subnet 0: 13,15,141,142
203.124.32.0-203.124.63.255
All subnets in this range are assigned to COMSATS.
Ping Sweep shows no hosts up on subnets 33-41.
Ping Sweep shows these hosts up on subnet 42: 1,10-12,19,31,64,65,71
Ping Sweep shows these hosts up on subnet 43: 1,11-14,21-25,31-33,63
Ping Sweep shows these hosts up on subnet 44: 85,92,102,110,129,141,144,148,152,167,177,188,233,235,239,243
Ping Sweep shows these hosts up on subnet 45: 34,60,79,96,112,158,171,223,249,251
Ping Sweep shows no hosts up on subnet 46.
Ping Sweep shows these hosts up on subnet 47: 1,3,5,15,157,159,185
Ping Sweep shows no hosts up on subnets 48-55.
Ping Sweep shows these hosts up on subnet 56: 1-254
Ping Sweep shows these hosts up on subnet 57: 1-254
Ping Sweep shows these hosts up on subnet 58: 129
Ping Sweep shows no hosts up on subnet 59.
Ping Sweep shows these hosts up on subnet 60: 1,130,134,136
Ping Sweep shows these hosts up on subnet 61: 1
Ping Sweep shows these hosts up on subnet 62: 1,200
Ping Sweep shows these hosts up on subnet 63: 4,23,44,177,213,214,235
210.56.0.0-210.56.31.255
All subnets in this range are assigned to COMSATS.
Ping Sweep shows these hosts up on subnet 1: 65-69,71,76,82,83,85-88,91
Ping Sweep shows these hosts up on subnet 2: 2-4,14,16,18,22,24-27,29,32,33,37-39
Ping Sweep shows these hosts up on subnet 3: 4,5,7,9,10,16,18,23,30,31,57,58
Ping Sweep shows these hosts up on subnet 4: 1,2,5-8,10-19,22,24,25,34,48,52,53,57,77,189,190,200,209,213,222,226,233,251
Ping Sweep shows these hosts up on subnet 5: 4,7,9,25,31,120,229
Ping Sweep shows these hosts up on subnet 6: 65,73,83,131-133,139-141,143,145,148-152,154,158,160-163,166,167,169,171,178,179,181,182,186,187,189
Ping Sweep shows these hosts up on subnet 7: 34,81,87,90,145,147-150,158,161,166,192,199,200,202,203,207,233
Ping Sweep shows these hosts up on subnet 8: 1,3,6,8,10,12,15,16,18,20,21,29,45-48,50,55,56,60,63-65,70,80,127,128,131,133,138-141,143,145,159,183,190,193,230,233,236
Ping Sweep shows these hosts up on subnet 9: 1,11,13,18,19,24,26,29,31,32,35,37,46,48,55,64,65,75,77,79,81,82,87,91
Ping Sweep shows these hosts up on subnet 10: 1,10,15,100,106,129-132,140,217,232
Ping Sweep shows these hosts up on subnet 11: 66,99,163,200,205,207
Ping Sweep shows these hosts up on subnet 12: 1,3,5,6,8,9,11,12,14-16,18,21,23,26-30,32,34,39,45,46,51,52,56-59,61-63,75,77,78,82,83,86,89,90,93,95,101,104,106,107,111,113,115,117,121,124,127,131,133,135,141,142,146,155,157,161,163-166,168,172-174,176,178,181,185,186,188,189,191,197,212,213,216,220,221,223,224,230,232,233,235,239,240,243,247,248
Ping Sweep shows these hosts up on subnet 13: 33,49,65,67,86,113,123,130,170,187,192,203-205,218,220,232,239,240,243,254
Ping Sweep shows these hosts up on subnet 14: 1,2,5,6,9,10,13,14,16,17,19-23,29,30,37,41,42,44,45,47,52-59,65,70,71,73-75,78,97,102,129-133,144,145,151,177,178,185,186,189,190,192,193,195-199,201,203,208-210,213,214,223,225
Ping Sweep shows these hosts up on subnet 15: 1-3,5,9,10,12,14-17,31,128,135,140,143,145,150,152,172,173,182,186,189,203,208,211,216,218-220,228-230,232,247,250
Ping Sweep shows no hosts up on subnets 16 & 17.
Ping Sweep shows these hosts up on subnet 18: 1,5-10,12,13,15,16,18-20,22,27,31-33,35,36,63,139,167,177,178,180,181,184-187,189,190,193,194,215,232,236,239,251,254
Ping Sweep shows these hosts up on subnet 19: 1-5,7,8,10-13,16,18,20,43,45,49,53,57,60,63,66,72,73,79,80,81,89,95,222,227-229,235-237,241,243
Ping Sweep shows no hosts up on subnets 20 & 21.
Ping Sweep shows these hosts up on subnet 22: 1,2,5,6,8,9-11,14,15,24,25,27,33,65,72-77,79-81,83,85,88,89,91,95,113-116,121,122,145,149
Ping Sweep shows no hosts up on subnet 23.
Ping Sweep shows these hosts up on subnet 24: 8,9,12,13,15,129,137,150
Ping Sweep shows these hosts up on subnet 25: 1,5,8,22,65,70,71,77,78,85,96,129-131,152-155,177,216-218,223
Ping Sweep shows no hosts up on subnet 26.
Ping Sweep shows these hosts up on subnet 27: 1,9,10,12,13,17,32,142,145,156,209,228,240
Ping Sweep shows these hosts up on subnet 28: 1,2,4,5,7,136,137,143,146,152,168,174,178,187,189,190,192,193,195,205,212,218,222,224-226,230,231,241,243,246,253,254
Ping Sweep shows no hosts up on subnet 29.
Ping Sweep shows these hosts up on subnet 30: 2,8,9,15-17,23,129,134,141,162,163,229,232
Ping Sweep shows no hosts up on subnet 31.