$ query “AS57” --type=asn → 1 result(s)
AS57 · NL-GIGAPOP
University of Minnesota
AS57 is operated by University of Minnesota and serves as a mid-size transit provider, established in the United States in 1985. The system announces 2 816 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in 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
- December 18, 1985
- Last Changed
- March 04, 2026
- Last Seen
- July 26, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 4 / 4
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 2 816
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 United States (2 816 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 7 upstreams providing transit
- Peers
- 6 networks exchanging traffic without transit
- Downstream Customers
- 21 downstreams buying transit
- Degree
- 34 unique BGP neighbors
- Reach
- 105 networks in customer cone
Upstream Providers (7)
Prefix Lists
IPv4 Prefixes (4 total)
- 146.57.248.0/21 (2 048 addresses (/21 prefix))
- 64.62.149.0/24 (256 addresses (/24 prefix))
- 192.35.86.0/24 (256 addresses (/24 prefix))
- 192.42.152.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (1 total)
- 2607:ea00::/32