subnet.im

AS18209Atria Convergence Technologies Ltd.,

IndiaRegistryAPNICTypeEyeball

As of 10th November 2026, AS18209 (Atria Convergence Technologies Ltd.,), an access network registered in India with APNIC, originates 135 IPv4 prefixes covering 85.8k addresses and 37 IPv6 prefixes. By IPv4 address space that makes it the 2,670th-largest of the 80,723 networks we see originating IPv4, and the 41st-largest of 2,966 in India. It is seen behind 4 upstream networks, most often AS4755 (TATA Communications (formerly VSNL)) and AS9498 (Bharti Airtel Ltd.), and in front of 3 downstream networks. 97% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

135

IPv6 prefixes

37

IPv4 addresses

85.8k

IPv6 /64s

2.4M

Upstream graph

The networks AS18209 is seen behind, one and two hops out, drawn from real AS paths.

AS18209Toward the internet core
Upstream graph for AS18209: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18209Atria Convergence…This networkAS4755TATA Communicatio…AS9498Bharti Airtel Ltd.AS9583Sify LimitedAS33480Web WerksAS35280F5 Networks SARLAS3491PCCW Global (HK) …AS6453TATA Communicatio…AS6939Hurricane Electri…AS55836Reliance Jio Info…AS174Cogent Communicat…AS133296Web Werks India P…

Networks observed one and two hops upstream of AS18209 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

14

adjacent networks

Upstreams
429%
Peers
750%
Downstreams
321%

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

Upstreams of AS18209
NetworkCountryRelationshipPathsVantage pts
AS4755TATA Communications (formerly VSNL)INPeer21,599139
AS9498Bharti Airtel Ltd.INPeer6,091135
AS9583Sify LimitedINPeer1554
AS33480Web WerksUSAdjacent611

Prefixes

All 172

The largest blocks AS18209 originates, widest first.

Largest prefixes originated by AS18209
PrefixAddressesVisibility
183.82.96.0/198.2k76/76
49.205.176.0/204.1k76/76
49.206.32.0/212k76/76
49.206.40.0/212k76/76
49.206.48.0/212k76/76
49.206.56.0/212k76/76
49.206.64.0/212k76/76
49.206.72.0/212k76/76
49.206.80.0/212k76/76
49.206.88.0/212k76/76

Routing health

How AS18209'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

  • Valid97.1%167
  • Invalid0.6%1
  • No ROA2.3%4

Propagation

  • Globally propagated90% of full-feed peers or more99.4%171
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.6%1

Prefix sizes

IPv4 — 135 prefixes

IPv6 — 37 prefixes

  • /4865.5k × /64100.0%37

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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