AS38536 Software Technology Parks of India,

STPI-DEHRADUN - Software Technology Parks of India, · registered in India

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in India#1,143largest network in IN by IPv4 space, of 2,914 · <0.01% of IN

Rank worldwide#42,630of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryIndia2,940 ASNs registered there

Open AS38536 in ASN lookup Look up an IP in this network (203.100.75.1) All networks in India

IPv4 prefixes

All 3 prefixes, in address order.

203.100.75.0/24
203.129.247.0/24
203.193.159.0/24

IPv6 prefixes

All 1 prefix.

2402:ef38::/32

Similar-sized networks in India

ASNNameIPv4 addresses

AS154950#1140 IRINN-CRIPL-AS-IN - CRAPPLET INFOTECH PRIVATE LIMITED1,024

AS24397#1141 STPI-Lucknow - Software Technology Parks of India-Lucknow768

AS153258#1142 KAPTECH-AS-IN - KAP TECHNOSOFT PVT LTD768

AS58703#1144 AMRITANET-IN - Amrita Vishwa Vidyapeetham768

AS135825#1145 FAST2024-AS-IN - FASTWEB NETWORKS PRIVATE LIMITED768

AS138773#1146 RFTAR-AS - RFTAR NETWORKS768

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources