AS2

Name: AS2 — University of Delaware
Creator: ipdex

University of Delaware Unknown registered in Russia

9IPv4 prefixes

1IPv6 prefixes

10%RPKI-valid

#7,786AS Rank

327/327RIS visibility

#649Rank in Russia

1991-01-10Allocated

University of Delaware (AS2) — Unknown, registered in Russia. announces 9 IPv4 prefixes + 1 IPv6 prefixes. Rank in Russia: #649. Allocated: 1991-01-10.

IPv4 9IPv6 1

Announced prefixes · 10

v4 128.4.0.0/16 valid
v4 171.79.128.0/20 unknown
v4 171.79.144.0/20 unknown
v4 194.190.53.0/24 unknown
v4 194.190.54.0/24 unknown
v4 45.161.25.0/24 unknown
v4 45.228.74.0/24 invalid
v4 45.228.75.0/24 invalid
v4 91.143.144.0/20 unknown
v6 2804:3edc::/32 unknown

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 11 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	10
2026-06-13	10

AS topology · Customer cone 2

Providers · 11

AS37613 DOLPHIN TELECOMMUNICATION LIMITED
AS52752 Vegas Telecom Informática Ltda.
AS138283 SPEED AIRLIVE BROADBAND SERVICES PVT LTD
AS34 University of Delaware
AS45609 Bharti Airtel Ltd. AS for GPRS Service
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.

Peers · 2

AS29091 ipNX Nigeria Limited
AS37254 Green Flash Trading

Customers · 1

AS37280 Broad Based Communications Limited

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