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Autonomous System

AS12355

HeLi NET Telekommunikation GmbH & Co.

Announced IPs
66,560
CIDR prefixes
5
ASN
AS12355

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.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 20-50Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-HELINET-V4 AS-HELINET-V6

Present at 4 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, AMS-IX, DO-IX, MegaIX Dusseldorf

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS12355 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
88.208.128.0/18 6,770 2026-07-22 10:25:40
83.216.224.0/19 6,734 2026-07-22 10:25:40
188.136.0.0/17 6,714 2026-07-22 10:37:21
212.37.32.0/19 6,708 2026-07-22 10:37:21
185.166.176.0/22 6,688 2026-07-22 10:37:21
88.208.160.0/19 4,472 2026-07-22 10:25:40
88.208.128.0/19 4,424 2026-07-22 10:25:40
188.136.0.0/19 4,395 2026-07-22 10:37:21
188.136.64.0/19 4,372 2026-07-22 10:37:21
188.136.32.0/19 4,369 2026-07-22 10:37:21
188.136.96.0/19 4,366 2026-07-22 10:37:21
188.136.72.0/21 681 2026-07-22 08:24:50
188.136.64.0/21 675 2026-07-22 08:24:50
188.136.3.0/24 652 2026-07-22 08:24:50
188.136.64.0/20 640 2026-07-22 08:25:30

Frequently Asked Questions

What is AS12355?

AS12355 is an Autonomous System Number assigned to HeLi NET Telekommunikation GmbH & Co.. 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 AS12355 announce?

AS12355 announces 66.6K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Germany.

Who operates AS12355?

AS12355 is operated by HeLi NET Telekommunikation GmbH & Co.. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.

What country is AS12355 registered in?

AS12355 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-22 10:55:31 UTC
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