subnet.im

AS11172Alestra, S. de R.L. de C.V.

MexicoRegistryLACNICTypeEyeball

As of 26th September 2026, AS11172 (Alestra, S. de R.L. de C.V.), an access network registered in Mexico with LACNIC, originates 947 IPv4 prefixes covering 1.2M addresses and 3,060 IPv6 prefixes. By IPv4 address space that makes it the 399th-largest of the 79,480 networks we see originating IPv4, and the 4th-largest of 493 in Mexico. It is seen behind 11 upstream networks, most often AS174 (Cogent Communications, LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 105 downstream networks. Over 99% 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, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

947

IPv6 prefixes

3,060

IPv4 addresses

1.2M

IPv6 /64s

10B

Upstream graph

The networks AS11172 is seen behind, one and two hops out, drawn from real AS paths.

AS11172Toward the internet core
Upstream graph for AS11172: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS11172Alestra, S. de R.…This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS6461Zayo BandwidthAS6762Telecom Italia Sp…AS32098Flō Networks (Tra…AS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS32590Valve CorporationAS2914NTT America, Inc.AS52075Wifirst S.A.S.AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS11172 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

246

adjacent networks

Upstreams
114%
Peers
13053%
Downstreams
10543%

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

Upstreams of AS11172
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer117,742139
AS1299Arelion (fka. Telia Carrier)SEPeer103,802144
AS32098Flō Networks (Transtelco Inc.)USPeer67,249145
AS6461Zayo BandwidthUSPeer3,911145
AS6762Telecom Italia Sparkle (Seabone)ITPeer1,584144
AS3491PCCW Global (HK) Ltd.HKPeer1,490143
AS8151Telmex (Uninet)MXPeer7941
AS23520Columbus Networks USA, Inc.USPeer455143
AS28502Axtel, S.A.B. de C.V.MXPeer10863
AS6503Axtel, S.A.B. de C.V.MXPeer7575

Prefixes

All 4,007

The largest blocks AS11172 originates, widest first.

Largest prefixes originated by AS11172
PrefixAddressesVisibility
148.211.0.0/1665.5k80/81
148.216.0.0/1665.5k80/81
148.238.0.0/1665.5k81/81
148.244.0.0/1665.5k81/81
189.206.0.0/1665.5k81/81
201.151.0.0/1665.5k80/81
201.163.0.0/1665.5k81/81
189.206.0.0/1732.8k81/81
189.206.128.0/1732.8k80/81
200.94.0.0/1732.8k80/81

Routing health

How AS11172'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

  • Valid99.2%3,976
  • Invalid0.0%0
  • No ROA0.8%31

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4,006
  • Partially propagated40% to 90%<0.1%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 947 prefixes

IPv6 — 3,060 prefixes

  • /324.3B × /64<0.1%2
  • /4016.8M × /640.2%6
  • /424.2M × /648.7%265
  • /441M × /640.3%8
  • /4865.5k × /6490.8%2,779

Recent changes

Announcements that started or stopped since 27th Aug 2026.

203 announced and 42 withdrawn in all; the most recent are shown.

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