ASN AS23138 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23138?

AS23138 is listed under FIRST STEP INTERNET, LLC.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS23138 FIRST STEP INTERNET, LLC

ASN Lookup Tool

FIRST STEP INTERNET, LLC fsr.com

US 35 Routes

AS Data

AS23138

AS23138 – FIRST STEP INTERNET, LLC

AS Number	23138
AS Name	FIRST-STEP
Organization	FIRST STEP INTERNET, LLC (1stp)
Country	US
Website	fsr.com
Number of IPv4 Routes	32
Number of IPv6 Routes	3
ASN type	ISP
Registry	ARIN
Date Allocated	2002-01-30

ASN Intelligence API for production workflows

Use ASN data for AS23138 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.52.247.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256
64.126.188.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256
64.126.162.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256
64.126.152.0/21	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	2048
64.126.182.0/23	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	512
64.126.166.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256
64.126.170.0/23	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	512
64.126.140.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256
204.52.246.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256
64.126.138.0/24	AS23138	FIRST STEP INTERNET, LLC	FIRST STEP INTERNET, LLC	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       23138
ASName:         FIRST-STEP
ASHandle:       AS23138
RegDate:        2002-01-30
Updated:        2002-01-30
Ref:            https://rdap.arin.net/registry/autnum/23138


OrgName:        FIRST STEP INTERNET, LLC
OrgId:          1STP
Address:        1420 S. BLAINE ST
Address:        SUITE 10
City:           MOSCOW
StateProv:      ID
PostalCode:     83843
Country:        US
RegDate:        1993-10-25
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/1STP


OrgNOCHandle: NOC3069-ARIN
OrgNOCName:   NETWORK OPERATIONS CENTER
OrgNOCPhone:  +1-208-882-8869 
OrgNOCEmail:  techsupport@fsr.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC3069-ARIN

OrgAbuseHandle: NAD63-ARIN
OrgAbuseName:   NETWORK ABUSE DEPARTMENT
OrgAbusePhone:  +1-208-883-3733 
OrgAbuseEmail:  abuse@fsr.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAD63-ARIN

OrgTechHandle: NOC3069-ARIN
OrgTechName:   NETWORK OPERATIONS CENTER
OrgTechPhone:  +1-208-882-8869 
OrgTechEmail:  techsupport@fsr.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC3069-ARIN

RTechHandle: MH81-ARIN
RTechName:   HARSHBARGER, MIKE 
RTechPhone:  +1-208-882-8869 
RTechEmail:  mharsh@fsr.com
RTechRef:    https://rdap.arin.net/registry/entity/MH81-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "23138",
    "as_handle" : "AS23138",
    "as_name" : "FIRST-STEP",
    "tech_contacts" : [ "NOC3069-ARIN", "MH81-ARIN" ],
    "abuse_contacts" : [ "NAD63-ARIN" ],
    "date_created" : "2002-01-30",
    "date_updated" : "2002-01-30",
    "source" : "https://rdap.arin.net/registry/autnum/23138"
  } ],
  "organization" : {
    "handle" : "1STP",
    "name" : "FIRST STEP INTERNET, LLC",
    "address" : [ "1420 S. BLAINE ST", "SUITE 10", "MOSCOW", "ID", "83843", "US" ],
    "street" : "S. Blaine St",
    "city" : "Moscow",
    "state" : "ID",
    "zip_code" : "83843",
    "country" : [ "US" ],
    "date_created" : "1993-10-25",
    "date_updated" : "2024-11-25",
    "source" : "https://rdap.arin.net/registry/entity/1STP",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NOC3069-ARIN",
    "name" : "NETWORK OPERATIONS CENTER",
    "email" : [ "techsupport@fsr.com" ],
    "phone" : [ "+1-208-882-8869" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC3069-ARIN"
  }, {
    "handle" : "MH81-ARIN",
    "name" : "HARSHBARGER, MIKE",
    "email" : [ "mharsh@fsr.com" ],
    "phone" : [ "+1-208-882-8869" ],
    "source" : "https://rdap.arin.net/registry/entity/MH81-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NAD63-ARIN",
    "name" : "NETWORK ABUSE DEPARTMENT",
    "email" : [ "abuse@fsr.com" ],
    "phone" : [ "+1-208-883-3733" ],
    "source" : "https://rdap.arin.net/registry/entity/NAD63-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS58511	Anycast Global Backbone	AU
AS24482	SG.GS	SG
AS3786	LG DACOM Corporation	KR
AS393577	Tritan Development	US
AS34927	iFog GmbH	CH
AS401703	Ordinal Advisors LLC	US
AS6939	Hurricane Electric LLC	US
AS20473	The Constant Company, LLC	US
AS64289	Macarne.com	US
AS10242	US Internet Corp	US

Upstreams

AS Number	Description	Country
AS35280	F5 Networks SARL	FR
AS7575	Australian Academic and Research Network	AU
AS394256	Tech Futures Interactive Inc.	CA
AS20055	Wholesail networks LLC	US
AS9002	RETN Limited	GB
AS6939	Hurricane Electric LLC	US
AS137409	GSL Networks Pty LTD	AU
AS16713	Northwest Open Access Network	US