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Autonomous System

AS3917

Shell Information Technology International B.V.

Announced IPs
13,312
CIDR prefixes
30
ASN
AS3917

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS3917 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
134.146.11.0/24 AS3917, AS5384 2026-07-27 06:09:13

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
134.146.80.0/21 2.0K
8.4%
Shell Information Technology International B.V. NL
134.146.112.0/21 2.0K
4.4%
Shell Information Technology International B.V. NL
134.146.176.0/22 1.0K
2.3%
Shell Information Technology International B.V. NL North Holland Amsterdam
134.145.188.0/23 512
0.0%
Shell Information Technology International B.V. NL
134.145.194.0/23 512
0.0%
Shell Information Technology International B.V. NL
134.146.6.0/23 512
13.9%
Shell Information Technology International B.V. NL
134.146.124.0/23 512
0.0%
Shell Information Technology International B.V. NL
134.146.172.0/23 512
0.0%
Shell Information Technology International B.V. NL
134.146.186.0/23 512
0.2%
Shell Information Technology International B.V. NL
134.146.254.0/23 512
0.0%
Shell Information Technology International B.V. NL North Holland Amsterdam
134.145.73.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.145.75.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.0.0/24 256
12.5%
Shell Information Technology International B.V. NL North Holland Amsterdam
134.146.3.0/24 256
1.6%
Shell Information Technology International B.V. NL
134.146.5.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.7.0/24 256
26.6%
Shell Information Technology International B.V. NL
134.146.8.0/24 256
1.2%
Shell Information Technology International B.V. NL
134.146.14.0/24 256
1.6%
Shell Information Technology International B.V. NL
134.146.29.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.89.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.120.0/24 256
2.7%
Shell Information Technology International B.V. NL
134.146.123.0/24 256
11.7%
Shell Information Technology International B.V. NL
134.146.125.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.126.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.164.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.174.0/24 256
0.0%
Shell Information Technology International B.V. NL
134.146.222.0/24 256
0.8%
Shell Information Technology International B.V. NL
134.146.251.0/24 256
13.7%
Shell Information Technology International B.V. NL
134.162.12.0/24 256
0.4%
Shell Information Technology International B.V. US
134.162.212.0/24 256
0.0%
Shell Information Technology International B.V. US
134.146.222.0/25 128
0.0%
Shell Information Technology International B.V. TR
134.146.222.128/25 128
0.0%
Shell Information Technology International B.V. NL
134.162.12.0/25 128
0.0%
Shell Information Technology International B.V. BR Goiás Aparecida de Goiânia
134.162.12.192/26 64
0.0%
Shell Information Technology International B.V. US
134.162.12.160/27 32
0.0%
Shell Information Technology International B.V. US
134.162.12.144/28 16
0.0%
Shell Information Technology International B.V. US
134.162.12.128/29 8
0.0%
Shell Information Technology International B.V. US
134.162.12.136/29 8
0.0%
Shell Information Technology International B.V. BR

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS3917 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
134.162.212.0/24 35,631 2026-07-27 23:54:15
134.162.12.0/24 35,595 2026-07-27 23:54:16
134.146.5.0/24 23,896 2026-07-27 23:28:47
134.146.222.0/24 22,695 2026-07-27 23:28:47
134.146.255.0/24 12,487 2026-07-27 23:48:22
134.146.174.0/24 6,198 2026-07-27 23:29:58
134.146.173.0/24 5,604 2026-07-27 23:29:58
134.146.8.0/24 5,581 2026-07-27 23:29:58
134.146.172.0/24 5,393 2026-07-27 23:29:58
134.146.179.0/24 4,692 2026-07-27 23:48:21
134.146.178.0/24 4,682 2026-07-27 23:48:21
134.146.177.0/24 4,671 2026-07-27 23:48:21
134.146.176.0/24 4,654 2026-07-27 23:48:21
134.146.7.0/24 4,652 2026-07-27 23:48:22
134.146.3.0/24 4,651 2026-07-27 23:48:22
134.146.89.0/24 4,645 2026-07-27 23:48:22
134.146.125.0/24 4,639 2026-07-27 23:48:22
134.146.254.0/24 4,635 2026-07-27 23:48:22
134.146.0.0/24 4,630 2026-07-27 23:48:22
134.146.14.0/24 4,629 2026-07-27 23:48:22
134.146.112.0/21 4,628 2026-07-27 23:48:21
134.146.80.0/21 4,626 2026-07-27 23:48:21
134.146.126.0/24 4,619 2026-07-27 23:48:22
134.146.164.0/24 4,615 2026-07-27 23:48:22
134.146.120.0/24 4,614 2026-07-27 23:48:22
134.146.6.0/24 4,613 2026-07-27 23:48:22
134.146.251.0/24 4,607 2026-07-27 23:48:21
134.146.29.0/24 4,606 2026-07-27 23:48:21
134.146.124.0/24 4,605 2026-07-27 23:48:22
134.146.123.0/24 4,597 2026-07-27 23:48:21
134.146.11.0/24 103 2026-07-27 20:21:21

Frequently Asked Questions

What is AS3917?

AS3917 is an Autonomous System Number assigned to Shell Information Technology International B.V.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS3917 announce?

AS3917 announces 13.3K IPv4 addresses distributed across 30 routed CIDR prefixes. The network is registered in The Netherlands.

Who operates AS3917?

AS3917 is operated by Shell Information Technology International B.V.. The organization is based in The Netherlands. You can view all IP ranges and related ASNs on the organization page.

What country is AS3917 registered in?

AS3917 is registered in The Netherlands. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-27 23:55:35 UTC
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