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Autonomous System

AS398808

Arch Capital Services LLC

Announced IPs
6,656
CIDR prefixes
17
ASN
AS398808

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

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
199.254.72.0/21 2.0K
0.0%
Arch Capital Services LLC US New Jersey Jersey City
199.254.66.0/23 512
0.0%
Arch Capital Services LLC US
199.254.74.0/23 512
0.0%
Arch Capital Services LLC US
199.254.92.0/23 512
0.0%
Arch Capital Services LLC US North Carolina Greensboro
8.45.114.0/24 256
0.0%
Arch Capital Services LLC US
8.245.30.0/24 256
0.0%
Arch Capital Services LLC US
12.145.65.0/24 256
0.0%
Arch Capital Services LLC US
38.108.191.0/24 256
0.0%
Arch Capital Services LLC US California San Jose
91.196.5.0/24 256
0.0%
Arch Capital Services LLC GB
149.5.34.0/24 256
0.0%
Arch Capital Services LLC US
154.59.105.0/24 256
0.0%
Arch Capital Services LLC US
192.81.191.0/24 256
0.4%
Arch Capital Services LLC US
199.254.65.0/24 256
6.3%
Arch Capital Services LLC US
199.254.68.0/24 256
0.0%
Arch Capital Services LLC US
199.254.72.0/24 256
0.0%
Arch Capital Services LLC IE
199.254.73.0/24 256
0.0%
Arch Capital Services LLC US
199.254.76.0/24 256
0.0%
Arch Capital Services LLC IE
199.254.77.0/24 256
0.0%
Arch Capital Services LLC US
199.254.78.0/24 256
0.0%
Arch Capital Services LLC SG
199.254.79.0/24 256
0.0%
Arch Capital Services LLC US
199.254.80.0/24 256
0.0%
Arch Capital Services LLC US
199.254.87.0/24 256
7.8%
Arch Capital Services LLC US
199.254.94.0/24 256
0.0%
Arch Capital Services LLC US
205.166.172.0/24 256
0.0%
Arch Capital Services LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS398808 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
38.108.191.0/24 21,076 2026-08-01 01:26:33
199.254.78.0/24 13,992 2026-08-01 01:27:28
154.59.105.0/24 11,921 2026-08-01 00:39:14
149.5.34.0/24 9,187 2026-08-01 00:41:37
199.254.87.0/24 8,822 2026-08-01 00:37:36
199.254.93.0/24 8,820 2026-08-01 00:37:36
199.254.92.0/24 8,818 2026-08-01 00:37:36
8.245.30.0/24 8,637 2026-08-01 00:57:16
91.196.5.0/24 7,931 2026-08-01 01:34:59
199.254.72.0/24 7,857 2026-08-01 00:41:36
199.254.76.0/24 7,826 2026-08-01 00:41:36
199.254.67.0/24 6,810 2026-08-01 00:37:36
199.254.66.0/24 6,779 2026-08-01 00:37:36
199.254.65.0/24 6,587 2026-08-01 00:41:31
199.254.73.0/24 6,520 2026-08-01 00:30:50
199.254.74.0/23 6,512 2026-08-01 00:30:50
8.45.114.0/24 6,466 2026-08-01 01:44:56
199.254.80.0/24 5,469 2026-08-01 01:20:13
199.254.68.0/24 5,241 2026-08-01 00:35:41
12.145.65.0/24 5,219 2026-08-01 01:44:52
199.254.79.0/24 4,863 2026-08-01 00:35:41
199.254.77.0/24 4,819 2026-08-01 00:39:14
192.81.191.0/24 4,758 2026-08-01 01:44:47
199.254.94.0/24 4,691 2026-08-01 01:20:13
205.166.172.0/24 4,617 2026-08-01 01:20:13

Frequently Asked Questions

What is AS398808?

AS398808 is an Autonomous System Number assigned to Arch Capital Services LLC. 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 AS398808 announce?

AS398808 announces 6.7K IPv4 addresses distributed across 17 routed CIDR prefixes. The network is registered in United States.

Who operates AS398808?

AS398808 is operated by Arch Capital Services LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS398808 registered in?

AS398808 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-08-01 01:55:31 UTC
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