$ query “AS16519” --type=asn → 1 result(s)
AS16519 · CUDENVER
University of Colorado Denver
AS16519 is operated by University of Colorado Denver and serves as an educational/research access provider, established in the United States in 2000. The system announces a solid 131 072 IPv4 addresses, including a /16, and supports IPv6. The bulk of its IP address space is in the United States.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- May 05, 2000
- Last Changed
- August 01, 2026
- Last Seen
- August 10, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 2
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 131 072
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /40
- Geolocated Countries
- 🇺🇸 United States (262 144 IPs)
- Prefix Changed
- April 17, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Downstream Customers
- 1 downstream buying transit
- Degree
- 3 unique BGP neighbors
- Reach
- 1 network in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (2 total)
- 132.194.0.0/16 (65 536 addresses (/16 prefix))
- 140.226.0.0/16 (65 536 addresses (/16 prefix))
IPv6 Prefixes (1 total)
- 2620:123:5000::/40