AS1124

Name: AS1124 — Universiteit van Amsterdam
Creator: ipdex

Universiteit van Amsterdam Unknown registered in Netherlands

4IPv4 prefixes

0IPv6 prefixes

75%RPKI-valid

#13,086AS Rank

327/327RIS visibility

#627Rank in Netherlands

1993-09-01Allocated

Universiteit van Amsterdam (AS1124) — Unknown, registered in Netherlands. announces 4 IPv4 prefixes + 0 IPv6 prefixes. Rank in Netherlands: #627. Allocated: 1993-09-01.

IPv4 4IPv6 0

Announced prefixes · 4

v4 145.109.0.0/17 valid
v4 145.109.128.0/17 valid
v4 145.18.0.0/16 valid
v4 146.50.0.0/16 unknown

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

Routing: 4 IPv4 · 0 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	4
2026-06-13	4

AS topology · Customer cone 1

Providers · 1

AS1103 SURF B.V.

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