What is ASN AS401951?

ASN AS401951 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS401951?

AS401951 is listed under SPDNet Corporation.

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS401951 SPDNet Corporation | IPGeolocation.io

ASN Lookup Tool

SPDNet Corporation spd.net.tr

US 5 Routes

AS Data

AS401951

AS401951 – SPDNet Corporation

AS Number	401951
AS Name	SPDNET
Organization	SPDNet Corporation (sc-3901)
Country	US
Website	spd.net.tr
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2025-09-08

ASN Intelligence API for production workflows

Use ASN data for AS401951 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
66.167.172.0/22	AS401951	SPDNet Corporation	SPDNet Corporation	1024
66.167.8.0/22	AS401951	SPDNet Corporation	SPDNet Corporation	1024
66.167.88.0/23	AS401951	SPDNet Corporation	GTT Americas, LLC	512
66.167.148.0/23	AS401951	SPDNet Corporation	GTT Americas, LLC	512
66.167.170.0/23	AS401951	SPDNet Corporation	GTT Americas, LLC	512

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:       401951
ASName:         SPDNET
ASHandle:       AS401951
RegDate:        2025-09-08
Updated:        2025-09-08
Comment:        Website: https://www.spd.net.tr
Comment:        Standard NOC hours are 24/7 (GMT+3)
Ref:            https://rdap.arin.net/registry/autnum/401951


OrgName:        SPDNet Corporation
OrgId:          SC-3901
Address:        1391, 1007 N Orange St. 4th Floor , Wilmington, DE, New Castle, US, 19801
City:           Delaware
StateProv:      DE
PostalCode:     19801
Country:        US
RegDate:        2023-03-14
Updated:        2023-04-05
Ref:            https://rdap.arin.net/registry/entity/SC-3901


OrgDNSHandle: EYIGU-ARIN
OrgDNSName:   Eyigunlu, Cahit 
OrgDNSPhone:  +1-269-281-2876 
OrgDNSEmail:  cahit.eyigunlu@spd.net.tr
OrgDNSRef:    https://rdap.arin.net/registry/entity/EYIGU-ARIN

OrgTechHandle: EYIGU-ARIN
OrgTechName:   Eyigunlu, Cahit 
OrgTechPhone:  +1-269-281-2876 
OrgTechEmail:  cahit.eyigunlu@spd.net.tr
OrgTechRef:    https://rdap.arin.net/registry/entity/EYIGU-ARIN

OrgRoutingHandle: EYIGU-ARIN
OrgRoutingName:   Eyigunlu, Cahit 
OrgRoutingPhone:  +1-269-281-2876 
OrgRoutingEmail:  cahit.eyigunlu@spd.net.tr
OrgRoutingRef:    https://rdap.arin.net/registry/entity/EYIGU-ARIN

OrgAbuseHandle: EYIGU-ARIN
OrgAbuseName:   Eyigunlu, Cahit 
OrgAbusePhone:  +1-269-281-2876 
OrgAbuseEmail:  cahit.eyigunlu@spd.net.tr
OrgAbuseRef:    https://rdap.arin.net/registry/entity/EYIGU-ARIN

OrgNOCHandle: EYIGU-ARIN
OrgNOCName:   Eyigunlu, Cahit 
OrgNOCPhone:  +1-269-281-2876 
OrgNOCEmail:  cahit.eyigunlu@spd.net.tr
OrgNOCRef:    https://rdap.arin.net/registry/entity/EYIGU-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" : "401951",
    "as_handle" : "AS401951",
    "as_name" : "SPDNET",
    "admin_contacts" : [ "EYIGU-ARIN" ],
    "tech_contacts" : [ "EYIGU-ARIN", "EYIGU-ARIN" ],
    "abuse_contacts" : [ "EYIGU-ARIN" ],
    "date_created" : "2025-09-08",
    "date_updated" : "2025-09-08",
    "source" : "https://rdap.arin.net/registry/autnum/401951"
  } ],
  "organization" : {
    "handle" : "SC-3901",
    "name" : "SPDNet Corporation",
    "address" : [ "1391, 1007 N Orange St. 4th Floor , Wilmington, DE, New Castle, US, 19801", "Delaware", "DE", "19801", "US" ],
    "street" : "Delaware De",
    "city" : "Wilmington De New",
    "zip_code" : "19801",
    "country" : [ "US" ],
    "date_created" : "2023-03-14",
    "date_updated" : "2023-04-05",
    "source" : "https://rdap.arin.net/registry/entity/SC-3901",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "EYIGU-ARIN",
    "name" : "Eyigunlu, Cahit",
    "email" : [ "cahit.eyigunlu@spd.net.tr" ],
    "phone" : [ "+1-269-281-2876" ],
    "source" : "https://rdap.arin.net/registry/entity/EYIGU-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "EYIGU-ARIN",
    "name" : "Eyigunlu, Cahit",
    "email" : [ "cahit.eyigunlu@spd.net.tr" ],
    "phone" : [ "+1-269-281-2876" ],
    "source" : "https://rdap.arin.net/registry/entity/EYIGU-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "EYIGU-ARIN",
    "name" : "Eyigunlu, Cahit",
    "email" : [ "cahit.eyigunlu@spd.net.tr" ],
    "phone" : [ "+1-269-281-2876" ],
    "source" : "https://rdap.arin.net/registry/entity/EYIGU-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR

Upstreams

AS Number	Description	Country
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR

Legacy Routes

66.167.12.0/23