$ query “AS11537” --type=asn → 1 result(s)

AS11537 — INTERNET2-RESEARCH-EDU

Internet2

AS11537 is a major transit provider run by Internet2, registered in the United States since 1998. The network announces 9 728 IPv4 addresses. Supports IPv6.

  • 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
March 04, 2026

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
🇺🇸 US (14 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs out of 9 728 total (0.00%)

Connectivity Summary

Upstream Providers
1 upstream autonomous systems providing transit
Peers
12 autonomous systems exchanging traffic without transit fees
Downstream Customers
106 downstream autonomous systems buying transit
Degree
122 unique BGP neighbors (providers + customers + peers)
Reach
2 830 — customer cone size measuring network influence
Degree Rank
#1 224
Reach Rank
#608

Upstream Providers (1)

Prefix Lists

IPv4 Prefixes (20 total)

  • 64.57.16.0/20 (4 096 addresses)
  • 163.253.0.0/22 (1 024 addresses)
  • 163.253.12.0/22 (1 024 addresses)
  • 163.253.16.0/23 (512 addresses)
  • 163.253.56.0/23 (512 addresses)
  • 163.253.66.0/23 (512 addresses)
  • 162.252.70.0/24 (256 addresses)
  • 163.253.9.0/24 (256 addresses)
  • 163.253.23.0/24 (256 addresses)
  • 163.253.28.0/24 (256 addresses)
  • 163.253.63.0/24 (256 addresses)
  • 163.253.64.0/24 (256 addresses)
  • 198.71.45.0/24 (256 addresses)
  • 198.71.46.0/24 (256 addresses)

IPv6 Prefixes (6 total)

  • 2001:468::/32