$ query “AS11172” --type=asn → 1 result(s)

AS11172 · ALESTRA

Alestra S. de R.L. de C.V.

AS11172 is run by Alestra S. de R.L. de C.V. and is a major transit provider, registered in Mexico since 1998. The system announces a solid 619 264 IPv4 addresses, including a /16, and supports IPv6. The bulk of its IP address space is in Mexico, with additional presence in Australia and Brazil, and smaller footprints in 3 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #4 in Mexico — Top 10 by reach within country
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇲🇽 Mexico
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
May 05, 1998
Last Changed
March 04, 2026
Last Seen
August 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
939 / 65
IPv6 Prefixes (raw / aggregated)
2 903 / 181
IPv4 Addresses
619 264
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇲🇽 Mexico (441 104 IPs), 🇦🇺 Australia (242 336 IPs), 🇧🇷 Brazil (3 840 IPs) and 3 more
Prefix Changed
August 11, 2026

Reputation

Reputation
Good — 10 flagged IPs out of 619 264 total (0.00%)
Open Proxies
2 known open proxies in this network

Connectivity Summary

Upstream Providers
7 upstreams providing transit
Downstream Customers
99 downstreams buying transit
Unclassified
7 unclassified BGP neighbors
Degree
113 unique BGP neighbors
Reach
207 networks in customer cone

Upstream Providers (7)

  • AS174 — COGENT (Tier-1 transit)
  • AS6461 — MFNX (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3491 — PCCWG-AS (Tier-1 transit)
  • AS6762 — SEABONE-NET (Tier-1 transit)
  • AS32098 — TRANSTELCO-INC
  • AS23520 — LIBERTY-NETWORKS

Prefix Lists

IPv4 Prefixes (939 total)

  • 148.238.0.0/16 (65 536 addresses (/16 prefix))
  • 189.206.0.0/16 (65 536 addresses (/16 prefix))
  • 201.163.0.0/16 (65 536 addresses (/16 prefix))
  • 201.151.0.0/16 (65 536 addresses (/16 prefix))
  • 148.244.0.0/16 (65 536 addresses (/16 prefix))
  • 148.211.0.0/16 (65 536 addresses (/16 prefix))
  • 148.216.0.0/16 (65 536 addresses (/16 prefix))
  • 200.188.0.0/17 (32 768 addresses (/17 prefix))
  • 200.94.0.0/17 (32 768 addresses (/17 prefix))
  • 200.236.64.0/18 (16 384 addresses (/18 prefix))
  • 200.76.0.0/18 (16 384 addresses (/18 prefix))
  • 200.76.128.0/18 (16 384 addresses (/18 prefix))
  • 200.94.128.0/19 (8 192 addresses (/19 prefix))
  • 207.248.224.0/19 (8 192 addresses (/19 prefix))
  • 200.56.112.0/20 (4 096 addresses (/20 prefix))
  • 200.52.112.0/20 (4 096 addresses (/20 prefix))
  • 200.39.200.0/21 (2 048 addresses (/21 prefix))
  • 201.130.12.0/22 (1 024 addresses (/22 prefix))
  • 200.106.172.0/22 (1 024 addresses (/22 prefix))
  • 143.202.156.0/22 (1 024 addresses (/22 prefix))
  • 201.139.4.0/22 (1 024 addresses (/22 prefix))
  • 201.139.16.0/22 (1 024 addresses (/22 prefix))
  • 201.158.104.0/22 (1 024 addresses (/22 prefix))
  • 192.207.204.0/23 (512 addresses (/23 prefix))
  • 200.23.18.0/23 (512 addresses (/23 prefix))
  • 38.211.200.0/23 (512 addresses (/23 prefix))
  • 38.224.96.0/23 (512 addresses (/23 prefix))
  • 201.159.44.0/23 (512 addresses (/23 prefix))
  • 201.139.22.0/23 (512 addresses (/23 prefix))
  • 201.139.8.0/23 (512 addresses (/23 prefix))
  • 192.190.30.0/23 (512 addresses (/23 prefix))
  • 38.52.116.0/23 (512 addresses (/23 prefix))
  • 201.139.0.0/24 (256 addresses (/24 prefix))
  • 201.139.15.0/24 (256 addresses (/24 prefix))
  • 198.44.203.0/24 (256 addresses (/24 prefix))
  • 193.26.114.0/24 (256 addresses (/24 prefix))
  • 200.23.32.0/24 (256 addresses (/24 prefix))
  • 200.23.37.0/24 (256 addresses (/24 prefix))
  • 192.100.244.0/24 (256 addresses (/24 prefix))
  • 192.100.196.0/24 (256 addresses (/24 prefix))
  • 201.130.2.0/24 (256 addresses (/24 prefix))
  • 192.100.194.0/24 (256 addresses (/24 prefix))
  • 201.131.72.0/24 (256 addresses (/24 prefix))
  • 201.131.120.0/24 (256 addresses (/24 prefix))
  • 200.23.39.0/24 (256 addresses (/24 prefix))
  • 161.195.140.0/24 (256 addresses (/24 prefix))
  • 200.34.168.0/24 (256 addresses (/24 prefix))
  • 201.139.10.0/24 (256 addresses (/24 prefix))
  • 201.139.13.0/24 (256 addresses (/24 prefix))
  • 200.13.111.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (2 903 total)

  • 2a0f:15c1::/32
  • 2a10:6c01::/32
  • 2001:1248:3000::/38
  • 2001:1248:ac00::/38
  • 2001:1248:4a00::/39
  • 2001:1248:8200::/39
  • 2001:1248:2200::/39
  • 2001:1248:5c00::/39
  • 2001:1248:a600::/39
  • 2001:1248:3600::/39
  • 2001:1248:5600::/39
  • 2001:1248:3a00::/39
  • 2001:1248:5a00::/39
  • 2001:1248:7200::/39
  • 2001:1248:b000::/39
  • 2001:1248:4400::/39
  • 2001:1248:aa00::/39
  • 2001:1248:4300::/40
  • 2001:1248:8000::/40
  • 2001:1248:9900::/40
  • 2001:1248:e000::/40
  • 2001:1248:8600::/40
  • 2001:1248:9c00::/40
  • 2001:1248:9a00::/40
  • 2001:1248:8900::/40
  • 2001:1248:2100::/40
  • 2001:1248:4600::/40
  • 2001:1248:a900::/40
  • 2001:1248:8400::/40
  • 2001:1248:c200::/40
  • 2001:1248:b200::/40
  • 2001:1248:4800::/40
  • 2001:1248:9f00::/40
  • 2001:1248:4000::/40
  • 2001:1248:4d00::/40
  • 2001:1248:4f00::/40
  • 2001:1248:5500::/40
  • 2001:1248:3900::/40
  • 2001:1248:2400::/40
  • 2001:1248:a500::/40
  • 2001:1248:7000::/40
  • 2001:1248:5f00::/40
  • 2001:1248:2800::/40
  • 2001:1248:5900::/40
  • 2001:1248:8700::/41
  • 2001:1248:8800::/41
  • 2001:1248:9b00::/41
  • 2001:1248:2600::/41
  • 2001:1248:9d00::/41
  • 2001:1248:7600::/41