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AS398499 SL Green Realty Corp

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

SL Green Realty Corp slgreen.com

US 2 Routes

AS Data

AS398499

AS398499 – SL Green Realty Corp

AS Number	398499
AS Name	OVA-HQ
Organization	SL Green Realty Corp (sgrc-1)
Country	US
Website	slgreen.com
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2020-07-06

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Use ASN data for AS398499 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2602:fd2c::/48	AS398499	SL Green Realty Corp	SL Green Realty Corp	~1×10²⁴
198.54.140.0/24	AS398499	SL Green Realty Corp	SL Green Realty Corp	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:       398499
ASName:         OVA-HQ
ASHandle:       AS398499
RegDate:        2020-07-06
Updated:        2020-07-06
Ref:            https://rdap.arin.net/registry/autnum/398499


OrgName:        SL Green Realty Corp
OrgId:          SGRC-1
Address:        420 Lexington Ave 18th Floor
City:           NY
StateProv:      NY
PostalCode:     10170
Country:        US
RegDate:        2008-04-25
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/SGRC-1


OrgAbuseHandle: ENGIN81-ARIN
OrgAbuseName:   Engineering
OrgAbusePhone:  +1-212-216-1644 
OrgAbuseEmail:  john.mathews@slgreen.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ENGIN81-ARIN

OrgTechHandle: ENGIN81-ARIN
OrgTechName:   Engineering
OrgTechPhone:  +1-212-216-1644 
OrgTechEmail:  john.mathews@slgreen.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ENGIN81-ARIN

OrgNOCHandle: ENGIN81-ARIN
OrgNOCName:   Engineering
OrgNOCPhone:  +1-212-216-1644 
OrgNOCEmail:  john.mathews@slgreen.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ENGIN81-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" : "398499",
    "as_handle" : "AS398499",
    "as_name" : "OVA-HQ",
    "tech_contacts" : [ "ENGIN81-ARIN" ],
    "abuse_contacts" : [ "ENGIN81-ARIN" ],
    "date_created" : "2020-07-06",
    "date_updated" : "2020-07-06",
    "source" : "https://rdap.arin.net/registry/autnum/398499"
  } ],
  "organization" : {
    "handle" : "SGRC-1",
    "name" : "SL Green Realty Corp",
    "address" : [ "420 Lexington Ave 18th Floor", "NY", "NY", "10170", "US" ],
    "street" : "Lexington Ave",
    "city" : "Ny",
    "state" : "NY",
    "zip_code" : "10170",
    "country" : [ "US" ],
    "date_created" : "2008-04-25",
    "date_updated" : "2024-11-25",
    "source" : "https://rdap.arin.net/registry/entity/SGRC-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "ENGIN81-ARIN",
    "name" : "Engineering",
    "email" : [ "john.mathews@slgreen.com" ],
    "phone" : [ "+1-212-216-1644" ],
    "source" : "https://rdap.arin.net/registry/entity/ENGIN81-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ENGIN81-ARIN",
    "name" : "Engineering",
    "email" : [ "john.mathews@slgreen.com" ],
    "phone" : [ "+1-212-216-1644" ],
    "source" : "https://rdap.arin.net/registry/entity/ENGIN81-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS54004	Cablevision Lightpath LLC	US

Frequently Asked Questions

What is ASN AS398499?

ASN AS398499 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS398499?

AS398499 is listed under SL Green Realty Corp.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.