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Autonomous System

AS23138

FIRST STEP INTERNET, LLC

Announced IPs
17,664
CIDR prefixes
5
ASN
AS23138

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 1-5Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-FSR

Present at 1 internet exchange: SIX Seattle: MTU 1500

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS23138 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
64.126.148.0/24 23,080 2026-07-22 12:24:50
199.245.242.0/24 22,903 2026-07-22 12:13:01
198.206.162.0/24 20,374 2026-07-22 12:22:43
64.126.131.0/24 18,939 2026-07-22 12:16:31
64.126.132.0/22 18,259 2026-07-22 12:16:31
64.126.165.0/24 13,848 2026-07-22 11:39:06
64.126.184.0/24 13,773 2026-07-22 12:20:29
64.126.136.0/24 10,398 2026-07-22 11:49:47
64.126.138.0/24 10,222 2026-07-22 11:49:47
64.126.174.0/23 10,000 2026-07-22 11:49:47
64.126.140.0/24 9,981 2026-07-22 11:49:47
64.126.143.0/24 9,974 2026-07-22 11:49:47
64.126.162.0/24 9,829 2026-07-22 11:52:30
64.126.166.0/24 9,709 2026-07-22 11:49:47
64.126.169.0/24 9,709 2026-07-22 11:49:47
64.126.180.0/23 8,976 2026-07-22 12:21:50
64.126.182.0/23 8,963 2026-07-22 12:20:10
64.126.160.0/23 8,958 2026-07-22 12:17:37
64.126.190.0/24 8,947 2026-07-22 12:18:37
64.126.186.0/24 8,946 2026-07-22 12:22:00
64.126.188.0/24 8,933 2026-07-22 12:16:40
64.126.152.0/21 8,916 2026-07-22 12:22:50
204.52.247.0/24 8,884 2026-07-22 12:14:01
64.126.149.0/24 8,770 2026-07-22 11:39:06
64.126.128.0/21 8,748 2026-07-22 12:17:07
64.126.128.0/18 8,672 2026-07-22 12:18:33
64.126.170.0/23 8,627 2026-07-22 11:39:06
64.126.172.0/23 8,598 2026-07-22 11:39:06
204.52.246.0/23 8,190 2026-07-22 12:16:31
64.126.141.0/24 6,972 2026-07-22 12:07:54
204.52.246.0/24 1,730 2026-07-22 12:07:54
204.52.245.0/24 1,312 2026-07-22 12:07:54

Frequently Asked Questions

What is AS23138?

AS23138 is an Autonomous System Number assigned to FIRST STEP INTERNET, 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 AS23138 announce?

AS23138 announces 17.7K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in United States.

Who operates AS23138?

AS23138 is operated by FIRST STEP INTERNET, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS23138 registered in?

AS23138 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: 2026-07-22 12:25:32 UTC
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