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AS4761PT Indosat Tbk

IndonesiaRegistryAPNICTypeCarrier

As of 27th September 2026, AS4761 (PT Indosat Tbk), a transit carrier registered in Indonesia with APNIC, originates 851 IPv4 prefixes covering 534k addresses and 150 IPv6 prefixes. By IPv4 address space that makes it the 688th-largest of the 79,525 networks we see originating IPv4, and the 5th-largest of 2,886 in Indonesia. It is seen behind 47 upstream networks, most often AS9002 (RETN Limited) and AS3491 (PCCW Global (HK) Ltd.), and in front of 128 downstream networks. 98% of its announcements have 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

851

IPv6 prefixes

150

IPv4 addresses

534k

IPv6 /64s

4.4B

Upstream graph

The networks AS4761 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS4761 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

462

adjacent networks

Upstreams
4710%
Peers
28762%
Downstreams
12828%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 47.

Upstreams of AS4761
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer26,616102
AS3491PCCW Global (HK) Ltd.HKPeer13,73777
AS2914NTT America, Inc.USPeer11,73969
AS174Cogent Communications, LLCUSPeer7,90674
AS1299Arelion (fka. Telia Carrier)SEPeer5,15877
AS6939Hurricane Electric LLCUSPeer4,04624
AS6453TATA Communications (America) IncUSPeer3,890109
AS7713PT Telkom Indonesia TbkIDPeer3,668138
AS2497Internet Initiative Japan Inc.JPPeer3,6446
AS17922PT Indosat TbkIDPeer2,0373

Prefixes

All 1,001

The largest blocks AS4761 originates, widest first.

Largest prefixes originated by AS4761
PrefixAddressesVisibility
114.4.0.0/1665.5k81/81
114.5.0.0/1665.5k81/81
114.7.0.0/1665.5k81/81
114.4.128.0/204.1k81/81
114.4.192.0/204.1k81/81
114.4.240.0/204.1k81/81
114.5.0.0/204.1k81/81
114.5.32.0/204.1k81/81
114.6.16.0/204.1k81/81
114.6.32.0/204.1k81/81

Routing health

How AS4761'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

  • Valid98.4%985
  • Invalid0.0%0
  • No ROA1.6%16

Propagation

  • Globally propagated90% of full-feed peers or more99.9%1,000
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%<0.1%1

Prefix sizes

IPv6 — 150 prefixes

  • /324.3B × /640.7%1
  • /432.1M × /640.7%1
  • /441M × /6474.0%111
  • /45524k × /642.7%4
  • /46262k × /645.3%8
  • /47131k × /645.3%8
  • /4865.5k × /6411.3%17

Recent changes

Announcements that started or stopped since 28th Aug 2026.

77 announced and 4 withdrawn in all; the most recent are shown.

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