Autonomous system
AS23138 FIRST-STEP
Residential ARIN
Summary
First Step Internet
cable dsl wireless isp
The AS handle FIRST-STEP is operated by First Step Internet, LLC.
What it's used for
- The address space carries access traffic, evidenced by reverse DNS entries such as
w148000.wireless.fsr.netandkb155254.dialup.fsr.net, indicating wireless and dial-up connectivity. - The network announces 17664 IPv4 addresses across 25 prefixes and 1 IPv6 prefix, while maintaining 18 observed neighbours, a ratio consistent with a regional access provider.
Notable
- Registrants for the majority of prefixes are listed as FIRST STEP INTERNET, LLC, matching the AS holder, though one prefix (204.52.246.0/23) is registered to American Registry for Internet Numbers.
- The address inventory is heavily concentrated in the 64.126.0.0/16 range, with a small number of /24 blocks in other ranges like 198.206.162.0/24 and 204.52.245.0/24.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 206.81.81.110 |
Transit providers
12 upstream, 3 downstream and 20 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 25 prefixes · 17.66K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 26 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS23138- Registry name
- FIRST-STEP
- Registrant
- FIRST STEP INTERNET, LLC
- Abuse contact
- abuse@fsr.com
- Registered
- 2002-01-30
- Last changed
- 2002-01-30
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 36 with no ROA
- ROAs
- 0 authorising AS23138
- ASPA
- no ASPA record
- IRR
- 100% registered · 36 of 36 announcements
- Route objects
- 31 naming AS23138
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,782 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere