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AS3640C I C E S E

MexicoRegistryLACNIC

As of 7th October 2026, AS3640 (C I C E S E), a network registered in Mexico with LACNIC, originates 7 IPv4 prefixes covering 65.8k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 3,528th-largest of the 79,511 networks we see originating IPv4, and the 36th-largest of 490 in Mexico. It is seen behind 1 upstream network, most often AS8151 (Telmex (Uninet)). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

7

IPv6 prefixes

2

IPv4 addresses

65.8k

IPv6 /64s

1M

Upstream graph

The networks AS3640 is seen behind, one and two hops out, drawn from real AS paths.

AS3640Toward the internet core
Upstream graph for AS3640: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3640C I C E S EThis networkAS8151Telmex (Uninet)AS174Cogent Communicat…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS3640 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS3640
NetworkCountryRelationshipPathsVantage pts
AS8151Telmex (Uninet)MXPeer688145

Prefixes

The largest blocks AS3640 originates, widest first.

Largest prefixes originated by AS3640
PrefixAddressesVisibility
158.97.128.0/1732.8k80/81
158.97.0.0/1816.4k80/81
158.97.64.0/198.2k80/81
158.97.96.0/204.1k80/81
158.97.112.0/212k80/81
158.97.120.0/212k80/81
192.84.12.0/2425680/81
2801:c4:f0::/45524k × /6464/65
2801:c4:f8::/45524k × /6464/65

Routing health

How AS3640'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

  • Valid100.0%9
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 7 prefixes

IPv6 — 2 prefixes

  • /45524k × /64100.0%2

Recent changes

Announcements that started or stopped since 10th Sept 2026.

No announcement by AS3640 started or stopped in this period.

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