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Autonomous System

AS13273

Alter Way SAS

Announced IPs
27,392
CIDR prefixes
6
ASN
AS13273

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.

65/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Trust score 65 / 100

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

About Alter Way

Founded
2006
Headquarters
France

Network profile

Source: PeeringDB →
Network type Content
Traffic level 1-5Gbps
Geographic scope Europe
Traffic ratio Mostly Outbound
Peering policy Open
IRR record AS-SMILE-OSS

Present at 2 internet exchanges: Equinix Paris: Equinix IX - PA Metro, France-IX Paris

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
213.91.0.0/18 16.4K
1.2%
Alter Way SAS FR
213.162.32.0/19 8.2K
12.5%
Alter Way SAS FR
185.21.152.0/22 1.0K
17.6%
Alter Way SAS FR
185.114.208.0/22 1.0K
0.2%
Alter Way SAS FR
195.54.62.0/23 512
15.4%
Alter Way SAS FR
91.216.209.0/24 256
33.6%
Alter Way SAS FR

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS13273 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
213.162.32.0/19 8,348 2026-07-24 15:03:21
195.54.62.0/23 8,277 2026-07-24 15:03:22
185.114.208.0/22 8,270 2026-07-24 15:03:21
185.21.152.0/22 8,159 2026-07-24 15:03:22
213.91.0.0/18 7,990 2026-07-24 15:03:22
185.114.208.0/23 3,761 2026-07-24 13:53:42
185.114.210.0/23 3,759 2026-07-24 13:53:42
195.54.63.0/24 3,732 2026-07-24 13:53:42
213.162.32.0/20 3,724 2026-07-24 13:53:42
195.54.62.0/24 3,719 2026-07-24 13:53:42
91.216.209.0/24 3,694 2026-07-24 13:53:42
213.162.48.0/20 3,690 2026-07-24 13:53:42
185.21.152.0/23 3,588 2026-07-24 13:53:42
185.21.154.0/23 3,541 2026-07-24 13:53:42
213.91.32.0/19 3,525 2026-07-24 13:53:42
213.91.0.0/19 3,517 2026-07-24 13:53:42

Frequently Asked Questions

What is AS13273?

AS13273 is an Autonomous System Number assigned to Alter Way SAS. 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 AS13273 announce?

AS13273 announces 27.4K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in France.

Who operates AS13273?

AS13273 is operated by Alter Way SAS. The organization is based in France. You can view all IP ranges and related ASNs on the organization page.

What country is AS13273 registered in?

AS13273 is registered in France. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 15:10:32 UTC
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