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AS2

University of Delaware
Announced prefixes
3
Upstreams
11
Peers
3
Downstreams
1

Adjacent ASNs

UpstreamDownstreamAS34AS34AS37613AS37613AS37628AS37628AS41837AS41837AS45609AS45609AS52752AS52752AS152709AS152709AS203794AS203794+3 more+3 moreAS37280AS372803 peer ASNs (exchange traffic as equals, not a hierarchy)Peers ×3AS2

Neighbor nodes aren't clickable. To look up an ASN, use the ASN lookup page

All Neighbor ASNs

Upstream11

Buys transit from them

  • AS34
  • AS37613
  • AS37628
  • AS41837
  • AS45609
  • AS52752
  • AS152709
  • AS203794
  • AS266893
  • AS270792
  • AS327753

Peer3

Settlement-free traffic exchange

  • AS29091
  • AS37254
  • AS61763

Downstream1

Buys transit from this AS

  • AS37280

Recent Prefix Changes

latest 15

IP prefixes this ASN started or stopped announcing (derived by diffing successive data syncs).

  • Withdrawn45.161.25.0/242026-08-27
  • Withdrawn189.76.77.0/242026-08-21
  • Withdrawn189.39.185.0/242026-08-20
  • Announced189.39.185.0/242026-08-20
  • Announced189.76.77.0/242026-08-19
  • Withdrawn189.76.77.0/242026-08-18
  • Announced189.76.77.0/242026-08-18
  • Withdrawn189.76.77.0/242026-08-18
  • Announced189.76.77.0/242026-08-17
  • Withdrawn189.39.184.0/232026-07-23
  • Announced189.39.184.0/232026-07-23
  • Withdrawn45.228.75.0/242026-07-21
  • Announced45.228.75.0/242026-07-20
  • Withdrawn189.76.77.0/242026-07-18
  • Announced189.76.77.0/242026-07-17

Data: local · Updated 2026-09-04 17:16:00