$ query “AS23520” --type=asn → 1 result(s)
AS23520 — LIBERTY-NETWORKS
Columbus Networks USA Inc.
AS23520 is a major transit provider operated by Columbus Networks USA Inc., registered in the United States since 2002. The network announces a solid 285 440 IPv4 addresses, including a /16. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇺🇸 United States
- Category
- Hosting
- Network Role
- Major Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 02, 2002
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 118 / 16
- IPv6 Prefixes (raw / aggregated)
- 2 / 2
- IPv4 Addresses
- 285 440
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 US (10 IPs), 🇬🇹 GT (7 IPs), 🇨🇴 CO (46 IPs), 🇵🇷 PR, 🇦🇺 AU, 🇩🇴 DO, 🇬🇩 GD, 🇦🇳 AN, 🇭🇳 HN, 🇲🇽 MX, 🇧🇸 BS, 🇵🇦 PA, 🇸🇻 SV, 🇨🇷 CR
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 1 flagged IPs out of 285 440 total (0.00%)
Connectivity Summary
- Upstream Providers
- 4 upstream autonomous systems providing transit
- Peers
- 16 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 167 downstream autonomous systems buying transit
- Degree
- 193 unique BGP neighbors (providers + customers + peers)
- Reach
- 35 541 — customer cone size measuring network influence
- Degree Rank
- #688
- Reach Rank
- #120
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (118 total)
- 69.79.0.0/16 (65 536 addresses)
- 72.252.0.0/16 (65 536 addresses)
- 190.242.0.0/16 (65 536 addresses)
- 63.245.0.0/17 (32 768 addresses)
- 67.230.0.0/17 (32 768 addresses)
- 190.131.192.0/18 (16 384 addresses)
- 200.115.160.0/21 (2 048 addresses)
- 138.121.12.0/22 (1 024 addresses)
- 143.208.164.0/22 (1 024 addresses)
- 186.5.128.0/22 (1 024 addresses)
- 181.191.190.0/23 (512 addresses)
- 23.249.136.0/24 (256 addresses)
- 38.50.164.0/24 (256 addresses)
- 156.235.73.0/24 (256 addresses)
- 156.235.74.0/24 (256 addresses)
- 208.169.92.0/24 (256 addresses)
IPv6 Prefixes (2 total)
- 2607:f438::/32
- 2803:f950::/32