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AS27818 Cotesma

Argentina AS27818 LACNIC 71 IPv4 prefixes 18 IPv6 prefixes
IPv4 addresses
17,664
IPv6 /48 networks
54,273
RPKI
89 valid0 no ROA
Peers and downstreams
1

Holder

AS name
AS27818
Description
LACNIC generated autnum for Cotesma
Organisation
Cotesma
Abuse contact
Not published
Assigned
2006-03-30
Registered
2006-03-31
Record last changed
2006-04-01 12:00 UTC
131.161.152.0/24131.161.153.0/24131.161.154.0/24131.161.155.0/24181.114.128.0/24181.114.129.0/24181.114.130.0/24181.114.131.0/24181.114.132.0/24181.114.133.0/24181.114.134.0/24181.114.135.0/24181.114.136.0/24181.114.137.0/24181.114.138.0/24181.114.139.0/24181.114.140.0/24181.114.141.0/24181.114.142.0/24181.114.143.0/24181.114.144.0/24181.114.145.0/24181.114.146.0/24181.114.147.0/24181.114.148.0/24181.114.149.0/24181.114.150.0/24181.114.151.0/24181.114.152.0/24181.114.153.0/24181.114.154.0/24181.114.155.0/24181.114.156.0/24181.114.157.0/24181.114.158.0/24181.114.159.0/24200.47.43.0/24201.220.160.0/24201.220.161.0/24201.220.162.0/24201.220.163.0/24201.220.164.0/24201.220.165.0/24201.220.166.0/24201.220.167.0/24201.220.168.0/24201.220.169.0/24201.220.170.0/24201.220.171.0/24201.220.172.0/24201.220.173.0/24201.220.174.0/24201.220.175.0/24201.220.176.0/24201.220.177.0/24201.220.178.0/24201.220.179.0/24201.220.180.0/24201.220.181.0/24201.220.182.0/24201.220.183.0/24201.220.184.0/24201.220.185.0/24201.220.186.0/23201.220.186.0/24201.220.187.0/24201.220.188.0/22201.220.188.0/24201.220.189.0/24201.220.190.0/24201.220.191.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS174 AS174 AS174 AS174 AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS7195 EDGEUNO S.A.S AS7195 · CO EDGEUNO S.A.S AS12956 TELEFONICA GLOBAL SOLUTIONS SL AS12956 · ES TELEFONICA GLOBAL SOL… AS7049 Silica Networks Argentina S.A. AS7049 · AR Silica Networks Argen… AS52361 ARSAT - Empresa Argentina de Soluciones Satelitales S.A. AS52361 · AR ARSAT - Empresa Argen… AS22927 Telefonica de Argentina AS22927 · AR Telefonica de Argenti… AS27818 Cotesma AS27818 · AR Cotesma

Network health

Grade C · 70/100
pass Prefixes covered by valid ROAs
89 of 89 announced prefixes are RPKI valid.		 25/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
18 IPv6 prefixes.		 15/15
pass More than one upstream
3 upstreams seen in BGP.		 10/10
fail Working abuse contact
No abuse contact is published in the registry.		 0/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
fail Registry record maintained
Last changed 2006-04-01.		 0/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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Routing changes

Last 30 days
2026-10-06 04:01 UTCRelationship changed AS52294 upstream to peer

WHOIS

aut-num:        AS27818
as-name:        27818
handle:         AS27818
remarks:        Autonomous System AS27818 from AR-COTE6-LACNIC
registrant:     AR-COTE6-LACNIC (Cotesma)
administrative,technical,abuse:ANM7 (COTESMA SMA) <marcos.pytel@cotesma.com.ar>
registration:   2006-03-31T12:00:00Z
last changed:   2006-04-01T12:00:00Z
source:         LACNIC (RDAP)