AS28545Cablemas Telecomunicaciones SA de CV
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
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS28545 is seen behind, one and two hops out, drawn from real AS paths.
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.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS18734Operbes, S.A. de C.V. | Peer | 11,497 | 141 | |
| AS23520Columbus Networks USA, Inc. | Peer | 7,422 | 107 |
Prefixes
All 59The largest blocks AS28545 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 177.236.112.0/22 | 1k | 77/77 |
| 177.236.116.0/22 | 1k | 77/77 |
| 187.184.24.0/22 | 1k | 77/77 |
| 187.184.28.0/22 | 1k | 77/77 |
| 187.184.96.0/22 | 1k | 77/77 |
| 187.184.100.0/22 | 1k | 77/77 |
| 187.184.104.0/22 | 1k | 77/77 |
| 187.184.108.0/22 | 1k | 77/77 |
| 187.184.112.0/22 | 1k | 77/77 |
| 187.184.116.0/22 | 1k | 77/77 |
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
IPv4 — 47 prefixes
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.
- Announced2806:250:1302::/4822nd Oct 2026
- Withdrawn2806:250:1302::/4822nd Oct 2026
- Announced177.238.49.0/2420th Oct 2026
- Announced2806:250:9::/4820th Oct 2026
- Announced2806:250:9::/4819th Oct 2026
- Withdrawn2806:250:9::/4819th Oct 2026
- Withdrawn177.238.49.0/2418th Oct 2026
- Withdrawn2806:250:9::/4818th Oct 2026
- Announced177.238.49.0/2415th Oct 2026
- Announced2806:250:9::/4815th Oct 2026
- Withdrawn177.238.49.0/2415th Oct 2026
- Withdrawn2806:250:9::/4815th Oct 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.