subnet.im

AS28545Cablemas Telecomunicaciones SA de CV

MexicoRegistryLACNICTypeEyeball

As of 23rd October 2026, AS28545 (Cablemas Telecomunicaciones SA de CV), an access network registered in Mexico with LACNIC, originates 47 IPv4 prefixes covering 29.7k addresses and 12 IPv6 prefixes. By IPv4 address space that makes it the 5,719th-largest of the 79,659 networks we see originating IPv4, and the 52nd-largest of 496 in Mexico. It is seen behind 2 upstream networks, most often AS18734 (Operbes, S.A. de C.V.) and AS23520 (Columbus Networks USA, Inc.), and in front of 9 downstream networks. 69% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

47

IPv6 prefixes

12

IPv4 addresses

29.7k

IPv6 /64s

20.3M

Upstream graph

The networks AS28545 is seen behind, one and two hops out, drawn from real AS paths.

AS28545Toward the internet core
Upstream graph for AS28545: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS28545Cablemas Telecomu…This networkAS18734Operbes, S.A. de …AS23520Columbus Networks…AS6461Zayo BandwidthAS1299Arelion (fka. Tel…AS6830Liberty Global Eu…

Networks observed one and two hops upstream of AS28545 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

22

adjacent networks

Upstreams
29%
Peers
1150%
Downstreams
941%

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

Upstreams of AS28545
NetworkCountryRelationshipPathsVantage pts
AS18734Operbes, S.A. de C.V.MXPeer11,497141
AS23520Columbus Networks USA, Inc.USPeer7,422107

Prefixes

All 59

The largest blocks AS28545 originates, widest first.

Largest prefixes originated by AS28545
PrefixAddressesVisibility
177.236.112.0/221k77/77
177.236.116.0/221k77/77
187.184.24.0/221k77/77
187.184.28.0/221k77/77
187.184.96.0/221k77/77
187.184.100.0/221k77/77
187.184.104.0/221k77/77
187.184.108.0/221k77/77
187.184.112.0/221k77/77
187.184.116.0/221k77/77

Routing health

How AS28545'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

  • Valid69.5%41
  • Invalid1.7%1
  • No ROA28.8%17

Propagation

  • Globally propagated90% of full-feed peers or more98.3%58
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%1.7%1

Prefix sizes

IPv6 — 12 prefixes

  • /4016.8M × /648.3%1
  • /45524k × /6450.0%6
  • /4865.5k × /6441.7%5

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

9 announced and 9 withdrawn in all; the most recent are shown.

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