What is ASN AS400816?

ASN AS400816 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400816?

AS400816 is listed under Stupp Fiber, 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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AS400816 Stupp Fiber, LLC | IPGeolocation.io

ASN Lookup Tool

Stupp Fiber, LLC stupp.com

US 7 Routes

AS Data

AS400816

AS400816 – Stupp Fiber, LLC

AS Number	400816
AS Name	STUPP-FIBER
Organization	Stupp Fiber, LLC (sfl-252)
Country	US
Website	stupp.com
Number of IPv4 Routes	6
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2022-12-02

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Use ASN data for AS400816 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.154.11.0/24	AS400816	Stupp Fiber, LLC	Stupp Fiber, LLC	256
204.154.12.0/24	AS400816	Stupp Fiber, LLC	Stupp Fiber, LLC	256
204.154.8.0/24	AS400816	Stupp Fiber, LLC	Stupp Fiber, LLC	256
204.154.9.0/24	AS400816	Stupp Fiber, LLC	Stupp Fiber, LLC	256
2607:4c0::/32	AS400816	Stupp Fiber, LLC	Stupp Fiber, LLC	~79×10²⁷
204.154.8.0/22	AS400816	Stupp Fiber, LLC	Stupp Fiber, LLC	1024
204.154.10.0/24	AS400816	Stupp Fiber, LLC	Stupp Fiber, 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:       400816
ASName:         STUPP-FIBER
ASHandle:       AS400816
RegDate:        2022-12-02
Updated:        2022-12-02
Ref:            https://rdap.arin.net/registry/autnum/400816


OrgName:        Stupp Fiber, LLC
OrgId:          SFL-252
Address:        2413 Nashville Road Suite C4
City:           Bownling Green
StateProv:      KY
PostalCode:     42101
Country:        US
RegDate:        2022-10-04
Updated:        2025-05-22
Ref:            https://rdap.arin.net/registry/entity/SFL-252


OrgTechHandle: ROOSA8-ARIN
OrgTechName:   Roosa, John 
OrgTechPhone:  +1-314-544-7519 
OrgTechEmail:  jroosa@stupp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ROOSA8-ARIN

OrgAbuseHandle: ROOSA8-ARIN
OrgAbuseName:   Roosa, John 
OrgAbusePhone:  +1-314-544-7519 
OrgAbuseEmail:  jroosa@stupp.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ROOSA8-ARIN

OrgNOCHandle: ROOSA8-ARIN
OrgNOCName:   Roosa, John 
OrgNOCPhone:  +1-314-544-7519 
OrgNOCEmail:  jroosa@stupp.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ROOSA8-ARIN

OrgNOCHandle: WILKI326-ARIN
OrgNOCName:   Wilkinson, Greg 
OrgNOCPhone:  +1-314-544-7546 
OrgNOCEmail:  gwilkinson@stupp.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/WILKI326-ARIN

OrgTechHandle: WILKI326-ARIN
OrgTechName:   Wilkinson, Greg 
OrgTechPhone:  +1-314-544-7546 
OrgTechEmail:  gwilkinson@stupp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WILKI326-ARIN

OrgDNSHandle: WILKI326-ARIN
OrgDNSName:   Wilkinson, Greg 
OrgDNSPhone:  +1-314-544-7546 
OrgDNSEmail:  gwilkinson@stupp.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/WILKI326-ARIN

OrgAbuseHandle: STUPP6-ARIN
OrgAbuseName:   Stupp, John 
OrgAbusePhone:  +1-314-544-7520 
OrgAbuseEmail:  jstupp@stupp.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/STUPP6-ARIN

OrgDNSHandle: ROOSA8-ARIN
OrgDNSName:   Roosa, John 
OrgDNSPhone:  +1-314-544-7519 
OrgDNSEmail:  jroosa@stupp.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ROOSA8-ARIN

OrgRoutingHandle: WILKI326-ARIN
OrgRoutingName:   Wilkinson, Greg 
OrgRoutingPhone:  +1-314-544-7546 
OrgRoutingEmail:  gwilkinson@stupp.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/WILKI326-ARIN

OrgRoutingHandle: ROOSA8-ARIN
OrgRoutingName:   Roosa, John 
OrgRoutingPhone:  +1-314-544-7519 
OrgRoutingEmail:  jroosa@stupp.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROOSA8-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" : "400816",
    "as_handle" : "AS400816",
    "as_name" : "STUPP-FIBER",
    "admin_contacts" : [ "WILKI326-ARIN", "ROOSA8-ARIN" ],
    "tech_contacts" : [ "ROOSA8-ARIN", "WILKI326-ARIN", "WILKI326-ARIN", "ROOSA8-ARIN" ],
    "abuse_contacts" : [ "ROOSA8-ARIN", "STUPP6-ARIN" ],
    "date_created" : "2022-12-02",
    "date_updated" : "2022-12-02",
    "source" : "https://rdap.arin.net/registry/autnum/400816"
  } ],
  "organization" : {
    "handle" : "SFL-252",
    "name" : "Stupp Fiber, LLC",
    "address" : [ "2413 Nashville Road Suite C4", "Bownling Green", "KY", "42101", "US" ],
    "street" : "Nashville Road",
    "city" : "Bownling Green",
    "state" : "KY",
    "zip_code" : "42101",
    "country" : [ "US" ],
    "date_created" : "2022-10-04",
    "date_updated" : "2025-05-22",
    "source" : "https://rdap.arin.net/registry/entity/SFL-252",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "WILKI326-ARIN",
    "name" : "Wilkinson, Greg",
    "email" : [ "gwilkinson@stupp.com" ],
    "phone" : [ "+1-314-544-7546" ],
    "source" : "https://rdap.arin.net/registry/entity/WILKI326-ARIN"
  }, {
    "handle" : "ROOSA8-ARIN",
    "name" : "Roosa, John",
    "email" : [ "jroosa@stupp.com" ],
    "phone" : [ "+1-314-544-7519" ],
    "source" : "https://rdap.arin.net/registry/entity/ROOSA8-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "ROOSA8-ARIN",
    "name" : "Roosa, John",
    "email" : [ "jroosa@stupp.com" ],
    "phone" : [ "+1-314-544-7519" ],
    "source" : "https://rdap.arin.net/registry/entity/ROOSA8-ARIN"
  }, {
    "handle" : "WILKI326-ARIN",
    "name" : "Wilkinson, Greg",
    "email" : [ "gwilkinson@stupp.com" ],
    "phone" : [ "+1-314-544-7546" ],
    "source" : "https://rdap.arin.net/registry/entity/WILKI326-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ROOSA8-ARIN",
    "name" : "Roosa, John",
    "email" : [ "jroosa@stupp.com" ],
    "phone" : [ "+1-314-544-7519" ],
    "source" : "https://rdap.arin.net/registry/entity/ROOSA8-ARIN"
  }, {
    "handle" : "STUPP6-ARIN",
    "name" : "Stupp, John",
    "email" : [ "jstupp@stupp.com" ],
    "phone" : [ "+1-314-544-7520" ],
    "source" : "https://rdap.arin.net/registry/entity/STUPP6-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS1000	LINK AMERICAN	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US