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AS4758National Informatics Centre

IndiaRegistryAPNIC

As of 27th September 2026, AS4758 (National Informatics Centre), a network registered in India with APNIC, originates 212 IPv4 prefixes covering 323k addresses and 65 IPv6 prefixes. By IPv4 address space that makes it the 940th-largest of the 79,525 networks we see originating IPv4, and the 18th-largest of 2,922 in India. It is seen behind 2 upstream networks, most often AS9885 (NKN INTERNET GATEWAY NETWORK) and AS55824 (NKN Core Network), and in front of 6 downstream networks. 96% of its announcements have a valid RPKI ROA; 8 are RPKI-invalid. 84% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

212

IPv6 prefixes

65

IPv4 addresses

323k

IPv6 /64s

4.7B

Upstream graph

The networks AS4758 is seen behind, one and two hops out, drawn from real AS paths.

AS4758Toward the internet core
Upstream graph for AS4758: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4758National Informat…This networkAS9885NKN INTERNET GATE…AS55824NKN Core NetworkAS9498Bharti Airtel Ltd.AS55836Reliance Jio Info…

Networks observed one and two hops upstream of AS4758 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

15

adjacent networks

Upstreams
213%
Peers
747%
Downstreams
640%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS4758
NetworkCountryRelationshipPathsVantage pts
AS9885NKN INTERNET GATEWAY NETWORKINPeer14,991145
AS55824NKN Core NetworkINPeer4,403145

Prefixes

All 277

The largest blocks AS4758 originates, widest first.

Largest prefixes originated by AS4758
PrefixAddressesVisibility
164.100.0.0/1665.5k81/81
164.100.0.0/1732.8k81/81
164.100.128.0/1732.8k81/81
164.100.0.0/198.2k81/81
164.100.32.0/198.2k81/81
164.100.64.0/198.2k81/81
164.100.96.0/198.2k81/81
164.100.128.0/198.2k81/81
164.100.160.0/198.2k81/81
164.100.192.0/198.2k81/81

Routing health

How AS4758's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid95.7%265
  • Invalid2.9%8
  • No ROA1.4%4

Propagation

  • Globally propagated90% of full-feed peers or more83.8%232
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%16.2%45

Prefix sizes

IPv4 — 212 prefixes

IPv6 — 65 prefixes

  • /324.3B × /641.5%1
  • /4016.8M × /6440.0%26
  • /441M × /643.1%2
  • /45524k × /646.2%4
  • /4865.5k × /6449.2%32

Recent changes

Announcements that started or stopped since 28th Aug 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.