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Autonomous System

AS21221

Infopact Netwerkdiensten B.V.

Announced IPs
99,840
CIDR prefixes
19
ASN
AS21221

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 AS21221 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)
185.169.76.0/24 AS21221, AS31537 2026-09-10 15:10:46

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Restrictive
IRR record AS-INFOPACT

Present at 6 internet exchanges: NL-ix: Main, ERA-IX Amsterdam, Speed-IX: SPEED-IX, LSIX: Main, Frys-IX, AMS-IX

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21221 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
45.14.3.0/24 25,604 2026-09-11 00:43:44
2.56.226.0/23 25,314 2026-09-11 00:43:44
212.29.160.0/19 24,935 2026-09-11 00:43:44
185.3.176.0/22 24,736 2026-09-11 00:43:44
109.71.104.0/22 24,272 2026-09-11 00:43:44
82.150.140.0/22 24,245 2026-09-11 00:43:44
217.18.64.0/20 24,014 2026-09-11 00:43:44
46.182.176.0/21 24,012 2026-09-11 00:43:44
45.135.210.0/24 23,837 2026-09-11 00:43:44
84.35.0.0/16 23,718 2026-09-11 00:43:44
82.210.96.0/19 23,618 2026-09-11 00:43:44
185.214.148.0/22 23,599 2026-09-11 00:43:44
185.70.208.0/22 23,408 2026-09-11 00:43:44
178.255.192.0/21 23,383 2026-09-11 00:43:44
217.18.70.0/24 20,985 2026-08-11 15:21:28
89.106.160.0/21 15,295 2026-09-11 00:43:44
139.28.112.0/22 15,209 2026-09-11 00:43:44
45.14.2.0/24 12,861 2026-09-11 00:49:52
212.29.185.0/24 7,454 2026-08-10 14:21:58
91.235.83.0/24 4,305 2026-09-11 00:37:05
212.29.176.0/24 2,077 2026-08-17 01:32:13
185.169.76.0/24 1,988 2026-09-09 15:21:38
45.14.0.0/24 1,214 2026-09-11 00:43:44

Frequently Asked Questions

What is AS21221?

AS21221 is an Autonomous System Number assigned to Infopact Netwerkdiensten 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 AS21221 announce?

AS21221 announces 99.8K IPv4 addresses distributed across 19 routed CIDR prefixes. The network is registered in The Netherlands.

Who operates AS21221?

AS21221 is operated by Infopact Netwerkdiensten 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 AS21221 registered in?

AS21221 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: 2026-09-11 00:54:05 UTC
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