subnet.im

AS4780Digital United Inc.

TaiwanRegistryAPNICTypeEyeball

As of 10th November 2026, AS4780 (Digital United Inc.), an access network registered in Taiwan with APNIC, originates 1,612 IPv4 prefixes covering 5.2M addresses and 15 IPv6 prefixes. By IPv4 address space that makes it the 134th-largest of the 80,733 networks we see originating IPv4, and the 3rd-largest of 241 in Taiwan. It is seen behind 22 upstream networks, most often AS9002 (RETN Limited) and AS6453 (TATA Communications (America) Inc), and in front of 62 downstream networks. Over 99% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1,612

IPv6 prefixes

15

IPv4 addresses

5.2M

IPv6 /64s

279B

Upstream graph

The networks AS4780 is seen behind, one and two hops out, drawn from real AS paths.

AS4780Toward the internet core
Upstream graph for AS4780: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4780Digital United In…This networkAS2497Internet Initiati…AS2914NTT America, Inc.AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS9002RETN LimitedAS49544i3D.net B.VAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS8220COLTAS35280F5 Networks SARLAS3356Lumen (Level 3)AS6667Elisa Oyj

Networks observed one and two hops upstream of AS4780 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

176

adjacent networks

Upstreams
2213%
Peers
9252%
Downstreams
6235%

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

Upstreams of AS4780
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer171,692138
AS6453TATA Communications (America) IncUSPeer51,145138
AS3491PCCW Global (HK) Ltd.HKPeer49,634138
AS2914NTT America, Inc.USPeer45,824138
AS2497Internet Initiative Japan Inc.JPPeer12,4055
AS6939Hurricane Electric LLCUSPeer9,11118
AS9505Taiwan Internet GatewayTWPeer1,71837
AS132337AxclusiveSGAdjacent1,0192
AS4635HKIX Route ServersHKPeer89118
AS24482SG.GSSGPeer8632

Prefixes

All 1,627

The largest blocks AS4780 originates, widest first.

Largest prefixes originated by AS4780
PrefixAddressesVisibility
59.104.0.0/15131k76/76
112.104.0.0/15131k76/76
123.204.0.0/15131k76/76
59.104.0.0/1665.5k76/76
59.105.0.0/1665.5k76/76
61.59.0.0/1665.5k76/76
106.104.0.0/1665.5k76/76
112.104.0.0/1665.5k76/76
112.105.0.0/1665.5k76/76
123.204.0.0/1665.5k76/76

Routing health

How AS4780'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

  • Valid99.9%1,626
  • Invalid0.0%0
  • No ROA<0.1%1

Propagation

  • Globally propagated90% of full-feed peers or more97.3%1,583
  • Partially propagated40% to 90%0.4%6
  • Seen by few peersUnder 40%2.3%38

Prefix sizes

IPv4 — 1,612 prefixes

IPv6 — 15 prefixes

  • /26275B × /646.7%1
  • /324.3B × /646.7%1
  • /36268M × /646.7%1
  • /441M × /646.7%1
  • /4865.5k × /6473.3%11

Recent changes

Announcements that started or stopped since 12th Oct 2026.

82 announced and 34 withdrawn in all; the most recent are shown.

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