$ query “AS11537” --type=asn → 1 result(s)
AS11537 · INTERNET2-RESEARCH-EDU
Internet2
AS11537 is run by Internet2 and is a major transit provider, established in the United States in 1998. The system announces 9 728 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States. Prefix announcements for this AS were recently updated.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Major Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 23, 1998
- Last Changed
- March 04, 2026
- Last Seen
- April 28, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 20 / 14
- IPv6 Prefixes (raw / aggregated)
- 6 / 1
- IPv4 Addresses
- 9 728
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 United States (9 728 IPs)
- Prefix Changed
- April 27, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Peers
- 12 networks exchanging traffic without transit
- Downstream Customers
- 106 downstreams buying transit
- Unclassified
- 4 unclassified BGP neighbors
- Degree
- 123 unique BGP neighbors
- Reach
- 2 741 networks in customer cone
Upstream Providers (1)
- AS7660 — APAN-JP
Prefix Lists
IPv4 Prefixes (20 total)
- 64.57.16.0/20 (4 096 addresses (/20 prefix))
- 163.253.0.0/22 (1 024 addresses (/22 prefix))
- 163.253.12.0/22 (1 024 addresses (/22 prefix))
- 163.253.66.0/23 (512 addresses (/23 prefix))
- 163.253.56.0/23 (512 addresses (/23 prefix))
- 163.253.16.0/23 (512 addresses (/23 prefix))
- 163.253.23.0/24 (256 addresses (/24 prefix))
- 163.253.28.0/24 (256 addresses (/24 prefix))
- 163.253.9.0/24 (256 addresses (/24 prefix))
- 163.253.63.0/24 (256 addresses (/24 prefix))
- 163.253.64.0/24 (256 addresses (/24 prefix))
- 162.252.70.0/24 (256 addresses (/24 prefix))
- 198.71.45.0/24 (256 addresses (/24 prefix))
- 198.71.46.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (6 total)
- 2001:468::/32