AS17903Cognizant Technology Solutions India Pvt Ltd,
IndiaRegistryAPNICAt a glance
IPv4 prefixes
97
IPv6 prefixes
0
IPv4 addresses
36.6k
IPv6 /64s
0
Upstream graph
The networks AS17903 is seen behind, one and two hops out, drawn from real AS paths.
AS17903Toward the internet core
Networks observed one and two hops upstream of AS17903 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
27
adjacent networks
- Upstreams
- 1348%
- Peers
- 1452%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS4755TATA Communications (formerly VSNL) | IN | Peer | 2,713 | 80 |
| AS9498Bharti Airtel Ltd. | IN | Peer | 2,003 | 80 |
| AS3356Lumen (Level 3) |  US | Peer | 940 | 79 |
| AS9299PLDT (Philippine Long Distance Telephone Company) |  PH | Peer | 400 | 80 |
| AS8220COLT |  GB | Peer | 320 | 80 |
| AS55836Reliance Jio Infocomm Limited | IN | Peer | 296 | 80 |
| AS9730Bharti Telesonic Ltd | IN | Peer | 240 | 80 |
| AS701Verizon Business | US | Peer | 166 | 79 |
| AS2856British Telecommunications | GB | Peer | 160 | 80 |
| AS9304HGC Global Communications Limited |  HK | Peer | 160 | 80 |
Prefixes
All 97The largest blocks AS17903 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 203.99.192.0/21 | 2k | 80/80 |
| 27.118.36.0/22 | 1k | 80/80 |
| 27.118.40.0/22 | 1k | 80/80 |
| 116.66.148.0/22 | 1k | 80/80 |
| 116.66.152.0/22 | 1k | 80/80 |
| 203.99.192.0/22 | 1k | 80/80 |
| 203.99.196.0/22 | 1k | 80/80 |
| 203.99.204.0/22 | 1k | 80/80 |
| 116.66.138.0/23 | 512 | 80/80 |
| 116.66.140.0/23 | 512 | 80/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.