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AS24164UNION BROADBAND NETWORK

TaiwanRegistryAPNICTypeEyeball

As of 10th November 2026, AS24164 (UNION BROADBAND NETWORK), an access network registered in Taiwan with APNIC, originates 249 IPv4 prefixes covering 961k addresses and 12 IPv6 prefixes. By IPv4 address space that makes it the 480th-largest of the 80,733 networks we see originating IPv4, and the 12th-largest of 241 in Taiwan. It is seen behind 2 upstream networks, most often AS9924 (Taiwan Fixed Network, Telco and Network…) and AS24165 (UNION BROADBAND NETWORK), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 94% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

249

IPv6 prefixes

12

IPv4 addresses

961k

IPv6 /64s

1.1B

Upstream graph

The networks AS24164 is seen behind, one and two hops out, drawn from real AS paths.

AS24164Toward the internet core
Upstream graph for AS24164: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS24164UNION BROADBAND N…This networkAS9924Taiwan Fixed Netw…AS24165UNION BROADBAND N…AS3491PCCW Global (HK) …AS9002RETN Limited

Networks observed one and two hops upstream of AS24164 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS24164
NetworkCountryRelationshipPathsVantage pts
AS9924Taiwan Fixed Network, Telco and Network Service Provider.TWPeer18,494138
AS24165UNION BROADBAND NETWORKTWPeer138138

Prefixes

All 261

The largest blocks AS24164 originates, widest first.

Largest prefixes originated by AS24164
PrefixAddressesVisibility
49.158.0.0/15131k76/76
49.158.0.0/1665.5k76/76
49.159.0.0/1665.5k76/76
180.218.0.0/1665.5k76/76
119.77.128.0/1732.8k76/76
180.218.0.0/1732.8k76/76
180.218.128.0/1732.8k76/76
115.165.192.0/1816.4k76/76
119.77.128.0/1816.4k76/76
119.77.192.0/1816.4k76/76

Routing health

How AS24164'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%261
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more93.9%245
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%6.1%16

Prefix sizes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Withdrawn119.77.208.0/219th Nov 2026
  • Withdrawn119.77.216.0/219th Nov 2026

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