$ query “AS4550” --type=asn → 1 result(s)
AS4550 · COGENT-4550
Cogent Communications LLC
AS4550 is operated by Cogent Communications LLC and serves as an enterprise stub network, based in the United States since 1995. The system announces 3 072 IPv4 addresses. Its primary geographic footprint is in Australia. This AS has recently updated its prefix announcements. No IPv6 support — it's 2026, just saying.
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 21, 1995
- Last Changed
- September 03, 2026
- Last Seen
- September 08, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 7 / 2
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 3 072
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Geolocated Countries
- 🇦🇺 Australia (3 072 IPs)
- Prefix Changed
- September 03, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Degree
- 1 unique BGP neighbor
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS10429 — TELEFONICA-BRASIL
Prefix Lists
IPv4 Prefixes (7 total)
- 187.33.176.0/21 (2 048 addresses (/21 prefix))
- 187.33.188.0/22 (1 024 addresses (/22 prefix))