$ query “AS4557” --type=asn → 1 result(s)
AS4557 · SOUTHEAST-TEXAS-GIGAPOP
Rice University
AS4557 is run by Rice University and is a mid-size transit provider, registered in the United States since 1995. The system announces 4 096 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States.
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 14, 1995
- Last Changed
- March 04, 2026
- Last Seen
- June 26, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 6 / 1
- IPv6 Prefixes (raw / aggregated)
- 4 / 1
- IPv4 Addresses
- 4 096
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Largest IPv6 Prefix
- /40
- Geolocated Countries
- 🇺🇸 United States (8 192 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 4 upstreams providing transit
- Peers
- 5 networks exchanging traffic without transit
- Downstream Customers
- 14 downstreams buying transit
- Degree
- 23 unique BGP neighbors
- Reach
- 22 networks in customer cone
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (6 total)
- 198.32.224.0/20 (4 096 addresses (/20 prefix))
IPv6 Prefixes (4 total)
- 2001:468:1a00::/40