subnet.im

AS18101Reliance Communications Ltd.DAKC MUMBAI

IndiaRegistryAPNIC

As of 25th October 2026, AS18101 (Reliance Communications Ltd.DAKC MUMBAI), a network registered in India with APNIC, originates 588 IPv4 prefixes covering 825k addresses and 14 IPv6 prefixes. By IPv4 address space that makes it the 532nd-largest of the 79,683 networks we see originating IPv4, and the 13th-largest of 2,931 in India. It is seen behind 2 upstream networks, most often AS15412 (Flag Telecom UK Limited) and AS4755 (TATA Communications (formerly VSNL)), and in front of 15 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

588

IPv6 prefixes

14

IPv4 addresses

825k

IPv6 /64s

4.3B

Upstream graph

The networks AS18101 is seen behind, one and two hops out, drawn from real AS paths.

AS18101Toward the internet core
Upstream graph for AS18101: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18101Reliance Communic…This networkAS4755TATA Communicatio…AS15412Flag Telecom UK L…AS6453TATA Communicatio…AS35280F5 Networks SARLAS2914NTT America, Inc.AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS18101 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

39

adjacent networks

Upstreams
25%
Peers
2256%
Downstreams
1538%

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

Upstreams of AS18101
NetworkCountryRelationshipPathsVantage pts
AS15412Flag Telecom UK LimitedGBPeer52,576137
AS4755TATA Communications (formerly VSNL)INPeer1,7934

Prefixes

All 602

The largest blocks AS18101 originates, widest first.

Largest prefixes originated by AS18101
PrefixAddressesVisibility
115.248.0.0/1665.5k76/76
115.249.0.0/1665.5k76/76
115.252.0.0/1665.5k76/76
124.124.0.0/1665.5k76/76
220.226.0.0/1665.5k76/76
220.227.0.0/1665.5k76/76
115.248.128.0/1732.8k76/76
115.254.0.0/1732.8k76/76
220.225.0.0/1732.8k76/76
220.225.192.0/1816.4k76/76

Routing health

How AS18101'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

  • Valid100.0%602
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more99.7%600
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.3%2

Prefix sizes

IPv4 — 588 prefixes

IPv6 — 14 prefixes

  • /324.3B × /647.1%1
  • /4865.5k × /6492.9%13

Recent changes

Announcements that started or stopped since 26th Sept 2026.

  • Announced124.124.226.0/2425th Oct 2026
  • Announced220.227.142.0/2324th Oct 2026
  • Withdrawn124.124.226.0/2424th Oct 2026
  • Withdrawn220.227.142.0/2323rd Oct 2026
  • Withdrawn124.124.96.0/2422nd Oct 2026
  • Withdrawn124.124.97.0/2422nd Oct 2026
  • Announced124.124.22.0/2422nd Oct 2026
  • Withdrawn220.224.134.0/2422nd Oct 2026
  • Withdrawn124.124.22.0/2420th Oct 2026
  • Withdrawn115.254.0.0/1614th Oct 2026
  • Withdrawn115.254.128.0/2014th Oct 2026
  • Withdrawn115.254.144.0/2014th Oct 2026

5 announced and 33 withdrawn in all; the most recent are shown.

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