Skip to main content
Autonomous System

AS12637

SEEWEB s.r.l.

Announced IPs
81,664
CIDR prefixes
29
ASN
AS12637

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 AS12637 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)
193.17.32.0/24 AS12637, AS213972 2026-09-12 10:41:02

Network profile

Source: PeeringDB →
Network type Content
Traffic level 10-20Gbps
Geographic scope Regional
Traffic ratio Mostly Outbound
Peering policy Open
IRR record AS12637:AS-CUSTOMERS

Present at 5 internet exchanges: Namex Rome: VLAN Peering, MIX-IT, AMS-IX, MINAP Milan: MINAP, VSIX: Primary

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
85.94.192.0/19 8.2K
30.5%
SEEWEB s.r.l. IT Lombardy Milan
95.174.0.0/19 8.2K
22.2%
SEEWEB s.r.l. IT Lombardy Milan
212.25.160.0/19 8.2K
47.2%
SEEWEB s.r.l. IT Lazio Frosinone
212.35.192.0/19 8.2K
33.7%
SEEWEB s.r.l. IT Lombardy Milan
212.66.224.0/19 8.2K
0.0%
SEEWEB s.r.l. IT
213.171.160.0/19 8.2K
22.4%
SEEWEB s.r.l. IT Lazio Frosinone
5.144.160.0/20 4.1K
28.8%
SEEWEB s.r.l. IT Lombardy Milan
37.9.224.0/20 4.1K
26.8%
SEEWEB s.r.l. IT Lombardy Milan
217.64.192.0/20 4.1K
30.3%
SEEWEB s.r.l. IT Lazio Frosinone
217.194.0.0/20 4.1K
15.3%
SEEWEB s.r.l. IT Lazio Frosinone
46.16.168.0/21 2.0K
1.5%
SEEWEB s.r.l. IT Lombardy Milan
176.56.128.0/21 2.0K
0.5%
SEEWEB s.r.l. EE
217.168.224.0/21 2.0K
8.5%
SEEWEB s.r.l. IT
80.241.140.0/22 1.0K
37.3%
SEEWEB s.r.l. IT
185.24.104.0/22 1.0K
0.3%
SEEWEB s.r.l. IT Lazio Frosinone
185.47.108.0/22 1.0K
12.8%
SEEWEB s.r.l. IT Lombardy Milan
185.146.252.0/22 1.0K
6.3%
SEEWEB s.r.l. SI
185.220.244.0/22 1.0K
42.8%
SEEWEB s.r.l. IT
185.222.68.0/22 1.0K
2.7%
SEEWEB s.r.l. IT Lombardy Milan
217.168.236.0/22 1.0K
25.0%
SEEWEB s.r.l. IT
77.83.64.0/23 512
28.3%
SEEWEB s.r.l. IT
217.168.224.0/23 512
0.0%
SEEWEB s.r.l. CH Ticino Lugano
217.168.228.0/23 512
0.0%
SEEWEB s.r.l. IT
217.168.234.0/23 512
0.0%
SEEWEB s.r.l. IT
45.143.157.0/24 256
2.0%
SEEWEB s.r.l. CH
93.157.185.0/24 256
0.4%
SEEWEB s.r.l. IT
185.142.68.0/24 256
0.4%
SEEWEB s.r.l. IT
185.228.250.0/24 256
1.2%
SEEWEB s.r.l. EE
185.255.138.0/24 256
0.0%
SEEWEB s.r.l. IT
193.200.3.0/24 256
0.4%
SEEWEB s.r.l. IT Lombardy Milan
217.168.227.0/24 256
0.0%
SEEWEB s.r.l. IT
217.168.230.0/24 256
0.0%
SEEWEB s.r.l. IT
217.168.231.0/24 256
0.0%
SEEWEB s.r.l. CH Zurich Rümlang
217.168.233.0/24 256
0.0%
SEEWEB s.r.l. IT
45.143.157.128/25 128
0.0%
SEEWEB s.r.l. CH
45.143.157.64/26 64
0.0%
SEEWEB s.r.l. CH
217.168.226.64/26 64
0.0%
SEEWEB s.r.l. CH
217.168.226.192/26 64
0.0%
SEEWEB s.r.l. CH
45.143.157.32/27 32
0.0%
SEEWEB s.r.l. CH
217.168.226.160/27 32
0.0%
SEEWEB s.r.l. CH
45.143.157.16/28 16
0.0%
SEEWEB s.r.l. CH
217.168.226.48/28 16
0.0%
SEEWEB s.r.l. CH
217.168.226.128/28 16
0.0%
SEEWEB s.r.l. IT
45.143.157.8/29 8
0.0%
SEEWEB s.r.l. CH
217.168.226.8/29 8
0.0%
SEEWEB s.r.l. CH
217.168.226.24/29 8
0.0%
SEEWEB s.r.l. CH
217.168.226.144/29 8
0.0%
SEEWEB s.r.l. CH
217.168.226.152/29 8
0.0%
SEEWEB s.r.l. IT
45.143.157.0/30 4
0.0%
SEEWEB s.r.l. IT
45.143.157.4/30 4
0.0%
SEEWEB s.r.l. CH
217.168.226.0/30 4
0.0%
SEEWEB s.r.l. IT
217.168.226.20/30 4
0.0%
SEEWEB s.r.l. CH
217.168.226.32/30 4
0.0%
SEEWEB s.r.l. IT
217.168.226.36/30 4
0.0%
SEEWEB s.r.l. CH
217.168.226.40/30 4
0.0%
SEEWEB s.r.l. CH
217.168.226.44/30 4
0.0%
SEEWEB s.r.l. IT
217.168.226.4/31 2
0.0%
SEEWEB s.r.l. IT
217.168.226.6/31 2
0.0%
SEEWEB s.r.l. CH
217.168.226.18/31 2
0.0%
SEEWEB s.r.l. CH
217.168.226.16 1
0.0%
SEEWEB s.r.l. IT
217.168.226.17 1
0.0%
SEEWEB s.r.l. CH

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS12637 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
217.168.226.0/23 106,863 2026-09-12 17:37:59
217.168.224.0/23 17,531 2026-09-12 17:37:59
176.56.128.0/21 15,167 2026-09-11 15:07:58
217.64.195.0/24 15,122 2026-09-12 17:39:21
77.83.64.0/24 13,882 2026-09-12 17:37:59
37.9.224.0/20 13,779 2026-09-12 17:27:54
5.144.160.0/20 13,726 2026-09-12 17:26:04
185.222.70.0/23 13,649 2026-09-12 17:38:45
46.16.168.0/21 13,558 2026-09-12 17:27:54
85.94.192.0/19 13,363 2026-09-12 17:38:45
217.64.192.0/20 13,353 2026-09-12 17:38:39
45.143.157.0/24 13,334 2026-09-12 17:37:59
80.241.142.0/24 13,294 2026-09-12 17:27:54
93.157.185.0/24 13,264 2026-09-12 17:38:45
77.83.65.0/24 13,264 2026-09-12 17:38:39
95.174.0.0/19 13,262 2026-09-12 17:38:45
185.47.108.0/22 13,198 2026-09-12 17:38:45
85.94.208.0/20 13,154 2026-09-12 17:38:39
80.241.140.0/22 13,104 2026-09-12 17:38:39
212.35.192.0/19 13,083 2026-09-12 17:38:45
217.168.224.0/20 13,073 2026-09-12 17:38:45
37.9.239.0/24 13,064 2026-09-12 17:27:54
185.228.250.0/24 13,039 2026-09-12 17:38:45
185.24.104.0/22 13,026 2026-09-12 17:38:45
185.146.252.0/22 13,004 2026-09-12 17:38:45
193.200.3.0/24 12,995 2026-09-12 17:38:45
185.222.68.0/23 12,959 2026-09-12 17:38:39
185.220.244.0/22 12,889 2026-09-12 17:37:59
212.66.224.0/19 12,686 2026-09-12 17:38:39
212.25.160.0/19 12,422 2026-09-12 17:38:39
213.171.160.0/19 12,349 2026-09-12 17:38:39
185.255.138.0/24 12,345 2026-09-12 17:38:39
217.194.0.0/20 12,345 2026-09-12 17:38:39
185.220.244.0/23 10,373 2026-09-12 17:37:59
185.220.246.0/24 9,710 2026-09-12 17:37:59
185.142.68.0/24 5,939 2026-07-14 10:17:32
193.17.32.0/24 279 2026-09-11 10:46:31
85.137.175.0/24 35 2026-07-03 10:31:37
178.215.237.0/24 33 2026-07-03 10:31:37
195.14.9.0/24 33 2026-07-03 10:31:37

Frequently Asked Questions

What is AS12637?

AS12637 is an Autonomous System Number assigned to SEEWEB s.r.l.. 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 AS12637 announce?

AS12637 announces 81.7K IPv4 addresses distributed across 29 routed CIDR prefixes. The network is registered in Italy.

Who operates AS12637?

AS12637 is operated by SEEWEB s.r.l.. The organization is based in Italy. You can view all IP ranges and related ASNs on the organization page.

What country is AS12637 registered in?

AS12637 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-12 17:40:46 UTC
Share