subnet.im

AS8151Telmex (Uninet)

MexicoRegistryLACNICTypeEyeball

As of 26th September 2026, AS8151 (Telmex (Uninet)), an access network registered in Mexico with LACNIC, originates 13,498 IPv4 prefixes covering 23.9M addresses and 539 IPv6 prefixes. By IPv4 address space that makes it the 27th-largest of the 79,480 networks we see originating IPv4, and the largest of 493 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. 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

13,498

IPv6 prefixes

539

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…AS3130RGnet OUAS49544i3D.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

268

adjacent networks

Upstreams
135%
Peers
13751%
Downstreams
11844%

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

Upstreams of AS8151
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer264,265145
AS1299Arelion (fka. Telia Carrier)SEPeer242,859145
AS174Cogent Communications, LLCUSPeer221,232139
AS6453TATA Communications (America) IncUSPeer206,927145
AS6939Hurricane Electric LLCUSPeer150,757102
AS3356Lumen (Level 3)USPeer55,168134
AS3257GTT Communications Inc.USPeer15,630117
AS49544i3D.net B.VNLPeer12,1952
AS701Verizon BusinessUSPeer10,445141
AS35280F5 Networks SARLFRPeer4,9196

Prefixes

All 14,037

The largest blocks AS8151 originates, widest first.

Largest prefixes originated by AS8151
PrefixAddressesVisibility
148.212.0.0/1665.5k81/81
148.217.0.0/1665.5k81/81
148.219.0.0/1665.5k81/81
187.203.0.0/1665.5k81/81
189.161.0.0/1665.5k3/81
189.170.0.0/1665.5k81/81
201.99.0.0/1665.5k81/81
201.100.0.0/1665.5k81/81
201.101.0.0/1665.5k80/81
201.109.0.0/1665.5k81/81

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%13,524
  • Invalid<0.1%3
  • No ROA3.6%510

Propagation

  • Globally propagated90% of full-feed peers or more97.5%13,687
  • Partially propagated40% to 90%<0.1%10
  • Seen by few peersUnder 40%2.4%340

Prefix sizes

IPv4 — 13,498 prefixes

IPv6 — 539 prefixes

  • /324.3B × /646.5%35
  • /4865.5k × /6493.5%504

Recent changes

Announcements that started or stopped since 27th Aug 2026.

354 announced and 41 withdrawn in all; the most recent are shown.

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