subnet.im

AS8151Telmex (Uninet)

MexicoRegistryLACNICTypeEyeball

As of 13th October 2026, AS8151 (Telmex (Uninet)), an access network registered in Mexico with LACNIC, originates 13,547 IPv4 prefixes covering 23.9M addresses and 542 IPv6 prefixes. By IPv4 address space that makes it the 27th-largest of the 79,585 networks we see originating IPv4, and the largest of 490 in Mexico. It is seen behind 13 upstream networks, most often AS2914 (NTT America, Inc.) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 118 downstream networks. 96% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 97% 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

13,547

IPv6 prefixes

542

IPv4 addresses

23.9M

IPv6 /64s

150B

Upstream graph

The networks AS8151 is seen behind, one and two hops out, drawn from real AS paths.

AS8151Toward the internet core
Upstream graph for AS8151: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8151Telmex (Uninet)This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6453TATA Communicatio…AS6939Hurricane Electri…AS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS38880Micron21 Datacent…AS49544i3D.net B.VAS8220COLTAS35280F5 Networks SARL

Networks observed one and two hops upstream of AS8151 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

267

adjacent networks

Upstreams
135%
Peers
13651%
Downstreams
11844%

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

Upstreams of AS8151
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer275,086144
AS1299Arelion (fka. Telia Carrier)SEPeer247,348146
AS174Cogent Communications, LLCUSPeer245,615140
AS6453TATA Communications (America) IncUSPeer202,658145
AS6939Hurricane Electric LLCUSPeer94,098104
AS3356Lumen (Level 3)USPeer62,017145
AS3257GTT Communications Inc.USPeer13,762119
AS49544i3D.net B.VNLPeer12,9442
AS7195EdgeUnoCOPeer12,6094
AS701Verizon BusinessUSPeer10,552119

Prefixes

All 14,089

The largest blocks AS8151 originates, widest first.

Largest prefixes originated by AS8151
PrefixAddressesVisibility
148.212.0.0/1665.5k81/81
148.217.0.0/1665.5k80/81
148.219.0.0/1665.5k81/81
187.203.0.0/1665.5k81/81
189.161.0.0/1665.5k3/81
201.99.0.0/1665.5k79/81
201.100.0.0/1665.5k81/81
201.101.0.0/1665.5k79/81
201.109.0.0/1665.5k81/81
201.122.0.0/1665.5k80/81

Routing health

How AS8151'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

  • Valid96.3%13,574
  • Invalid<0.1%3
  • No ROA3.6%512

Propagation

  • Globally propagated90% of full-feed peers or more97.5%13,732
  • Partially propagated40% to 90%<0.1%10
  • Seen by few peersUnder 40%2.5%347

Prefix sizes

IPv4 — 13,547 prefixes

IPv6 — 542 prefixes

  • /324.3B × /646.5%35
  • /4865.5k × /6493.5%507

Recent changes

Announcements that started or stopped since 13th Sept 2026.

593 announced and 228 withdrawn in all; the most recent are shown.

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