ASN AS18870 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18870?

AS18870 is listed under Great Western Bank.

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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AS18870 Great Western Bank | IPGeolocation.io

ASN Lookup Tool

Great Western Bank fib.com

US 2 Routes

AS Data

AS18870

AS18870 – Great Western Bank

AS Number	18870
AS Name	GWB
Organization	Great Western Bank (gwb-3)
Country	US
Website	fib.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2012-10-03

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Use ASN data for AS18870 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.40.218.0/24	AS18870	Great Western Bank	Great Western Bank	256
192.40.219.0/24	AS18870	Great Western Bank	Great Western Bank	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:       18870
ASName:         GWB
ASHandle:       AS18870
RegDate:        2012-10-03
Updated:        2012-12-31
Ref:            https://rdap.arin.net/registry/autnum/18870


OrgName:        Great Western Bank
OrgId:          GWB-3
Address:        225 S Main Ave
City:           Sioux Falls
StateProv:      SD
PostalCode:     57104
Country:        US
RegDate:        2012-08-29
Updated:        2024-04-01
Ref:            https://rdap.arin.net/registry/entity/GWB-3


OrgTechHandle: ASKEP-ARIN
OrgTechName:   Aske, Phillip  
OrgTechPhone:  +1-509-315-1079 
OrgTechEmail:  Phillip.Aske@fib.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ASKEP-ARIN

OrgTechHandle: KLIME16-ARIN
OrgTechName:   Klimes, Aaron 
OrgTechPhone:  +1-605-370-6784 
OrgTechEmail:  aaron.klimes@fib.com
OrgTechRef:    https://rdap.arin.net/registry/entity/KLIME16-ARIN

OrgAbuseHandle: ASKEP-ARIN
OrgAbuseName:   Aske, Phillip  
OrgAbusePhone:  +1-509-315-1079 
OrgAbuseEmail:  Phillip.Aske@fib.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ASKEP-ARIN

OrgAbuseHandle: KLIME16-ARIN
OrgAbuseName:   Klimes, Aaron 
OrgAbusePhone:  +1-605-370-6784 
OrgAbuseEmail:  aaron.klimes@fib.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/KLIME16-ARIN

OrgNOCHandle: NOC12963-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-605-553-9470 
OrgNOCEmail:  fib.network@fib.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC12963-ARIN

OrgRoutingHandle: ASKEP-ARIN
OrgRoutingName:   Aske, Phillip  
OrgRoutingPhone:  +1-509-315-1079 
OrgRoutingEmail:  Phillip.Aske@fib.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ASKEP-ARIN

OrgRoutingHandle: KLIME16-ARIN
OrgRoutingName:   Klimes, Aaron 
OrgRoutingPhone:  +1-605-370-6784 
OrgRoutingEmail:  aaron.klimes@fib.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/KLIME16-ARIN

OrgAbuseHandle: NOC12963-ARIN
OrgAbuseName:   Network Operations Center
OrgAbusePhone:  +1-605-553-9470 
OrgAbuseEmail:  fib.network@fib.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC12963-ARIN

OrgTechHandle: NOC12963-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-605-553-9470 
OrgTechEmail:  fib.network@fib.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC12963-ARIN

OrgDNSHandle: KLIME16-ARIN
OrgDNSName:   Klimes, Aaron 
OrgDNSPhone:  +1-605-370-6784 
OrgDNSEmail:  aaron.klimes@fib.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/KLIME16-ARIN

OrgDNSHandle: ASKEP-ARIN
OrgDNSName:   Aske, Phillip  
OrgDNSPhone:  +1-509-315-1079 
OrgDNSEmail:  Phillip.Aske@fib.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ASKEP-ARIN

OrgNOCHandle: ASKEP-ARIN
OrgNOCName:   Aske, Phillip  
OrgNOCPhone:  +1-509-315-1079 
OrgNOCEmail:  Phillip.Aske@fib.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ASKEP-ARIN

OrgNOCHandle: KLIME16-ARIN
OrgNOCName:   Klimes, Aaron 
OrgNOCPhone:  +1-605-370-6784 
OrgNOCEmail:  aaron.klimes@fib.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/KLIME16-ARIN

RAbuseHandle: NOC12963-ARIN
RAbuseName:   Network Operations Center
RAbusePhone:  +1-605-553-9470 
RAbuseEmail:  fib.network@fib.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NOC12963-ARIN

RTechHandle: NOC12963-ARIN
RTechName:   Network Operations Center
RTechPhone:  +1-605-553-9470 
RTechEmail:  fib.network@fib.com
RTechRef:    https://rdap.arin.net/registry/entity/NOC12963-ARIN

RNOCHandle: NOC12963-ARIN
RNOCName:   Network Operations Center
RNOCPhone:  +1-605-553-9470 
RNOCEmail:  fib.network@fib.com
RNOCRef:    https://rdap.arin.net/registry/entity/NOC12963-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" : "18870",
    "as_handle" : "AS18870",
    "as_name" : "GWB",
    "admin_contacts" : [ "KLIME16-ARIN", "ASKEP-ARIN" ],
    "tech_contacts" : [ "ASKEP-ARIN", "KLIME16-ARIN", "ASKEP-ARIN", "KLIME16-ARIN", "NOC12963-ARIN", "NOC12963-ARIN" ],
    "abuse_contacts" : [ "ASKEP-ARIN", "KLIME16-ARIN", "NOC12963-ARIN", "NOC12963-ARIN" ],
    "date_created" : "2012-10-03",
    "date_updated" : "2012-12-31",
    "source" : "https://rdap.arin.net/registry/autnum/18870"
  } ],
  "organization" : {
    "handle" : "GWB-3",
    "name" : "Great Western Bank",
    "address" : [ "225 S Main Ave", "Sioux Falls", "SD", "57104", "US" ],
    "street" : "S Main Ave",
    "city" : "Sioux Falls",
    "state" : "SD",
    "zip_code" : "57104",
    "country" : [ "US" ],
    "date_created" : "2012-08-29",
    "date_updated" : "2024-04-01",
    "source" : "https://rdap.arin.net/registry/entity/GWB-3",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "KLIME16-ARIN",
    "name" : "Klimes, Aaron",
    "email" : [ "aaron.klimes@fib.com" ],
    "phone" : [ "+1-605-370-6784" ],
    "source" : "https://rdap.arin.net/registry/entity/KLIME16-ARIN"
  }, {
    "handle" : "ASKEP-ARIN",
    "name" : "Aske, Phillip",
    "email" : [ "Phillip.Aske@fib.com" ],
    "phone" : [ "+1-509-315-1079" ],
    "source" : "https://rdap.arin.net/registry/entity/ASKEP-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "ASKEP-ARIN",
    "name" : "Aske, Phillip",
    "email" : [ "Phillip.Aske@fib.com" ],
    "phone" : [ "+1-509-315-1079" ],
    "source" : "https://rdap.arin.net/registry/entity/ASKEP-ARIN"
  }, {
    "handle" : "KLIME16-ARIN",
    "name" : "Klimes, Aaron",
    "email" : [ "aaron.klimes@fib.com" ],
    "phone" : [ "+1-605-370-6784" ],
    "source" : "https://rdap.arin.net/registry/entity/KLIME16-ARIN"
  }, {
    "handle" : "NOC12963-ARIN",
    "name" : "Network Operations Center",
    "email" : [ "fib.network@fib.com" ],
    "phone" : [ "+1-605-553-9470" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC12963-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ASKEP-ARIN",
    "name" : "Aske, Phillip",
    "email" : [ "Phillip.Aske@fib.com" ],
    "phone" : [ "+1-509-315-1079" ],
    "source" : "https://rdap.arin.net/registry/entity/ASKEP-ARIN"
  }, {
    "handle" : "KLIME16-ARIN",
    "name" : "Klimes, Aaron",
    "email" : [ "aaron.klimes@fib.com" ],
    "phone" : [ "+1-605-370-6784" ],
    "source" : "https://rdap.arin.net/registry/entity/KLIME16-ARIN"
  }, {
    "handle" : "NOC12963-ARIN",
    "name" : "Network Operations Center",
    "email" : [ "fib.network@fib.com" ],
    "phone" : [ "+1-605-553-9470" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC12963-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS13576	SDN Communications	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS13576	SDN Communications	US