ASN AS5719 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS5719?

AS5719 is listed under State University of New York at Stony Brook.

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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AS5719 State University of New York at Stony Brook

ASN Lookup Tool

State University of New York at Stony Brook stonybrook.edu

US 11 Routes

AS Data

AS5719

AS5719 – State University of New York at Stony Brook

AS Number	5719
AS Name	SUNYSB
Organization	State University of New York at Stony Brook (sunyasb-z)
Country	US
Website	stonybrook.edu
Number of IPv4 Routes	9
Number of IPv6 Routes	2
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1995-09-06

ASN Intelligence API for production workflows

Use ASN data for AS5719 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.42.55.0/24	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	256
2620:101::/46	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	~5×10²⁴
129.49.0.0/17	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	32768
130.245.0.0/16	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	65536
130.245.128.0/17	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	32768
129.49.128.0/17	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	32768
2620:10d:1000::/44	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	~19×10²⁴
129.49.0.0/16	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	65536
192.12.90.0/24	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	256
130.245.0.0/17	AS5719	State University of New York at Stony Brook	State University of New York at Stony Brook	32768

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:       5719
ASName:         SUNYSB
ASHandle:       AS5719
RegDate:        1995-09-06
Updated:        2023-10-16
Ref:            https://rdap.arin.net/registry/autnum/5719


OrgName:        State University of New York at Stony Brook
OrgId:          SUNYASB-Z
Address:        247 ECC Building
City:           Stony Brook
StateProv:      NY
PostalCode:     11794-2620
Country:        US
RegDate:        2023-06-05
Updated:        2023-06-05
Ref:            https://rdap.arin.net/registry/entity/SUNYASB-Z


OrgNOCHandle: DNSTE13-ARIN
OrgNOCName:   DNS TECH
OrgNOCPhone:  +1-631-632-2899 
OrgNOCEmail:  behzad.barzideh@stonybrook.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/DNSTE13-ARIN

OrgTechHandle: BB3872-ARIN
OrgTechName:   Barzideh, Behzad 
OrgTechPhone:  +1-631-632-2899 
OrgTechEmail:  behzad.barzideh@stonybrook.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/BB3872-ARIN

OrgTechHandle: DNSTE13-ARIN
OrgTechName:   DNS TECH
OrgTechPhone:  +1-631-632-2899 
OrgTechEmail:  behzad.barzideh@stonybrook.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/DNSTE13-ARIN

OrgAbuseHandle: DNSAB-ARIN
OrgAbuseName:   DNS Abuse
OrgAbusePhone:  +1-631-632-2899 
OrgAbuseEmail:  abuse@stonybrook.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DNSAB-ARIN

RTechHandle: BB3872-ARIN
RTechName:   Barzideh, Behzad 
RTechPhone:  +1-631-632-2899 
RTechEmail:  behzad.barzideh@stonybrook.edu
RTechRef:    https://rdap.arin.net/registry/entity/BB3872-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" : "5719",
    "as_handle" : "AS5719",
    "as_name" : "SUNYSB",
    "tech_contacts" : [ "BB3872-ARIN", "DNSTE13-ARIN", "BB3872-ARIN" ],
    "abuse_contacts" : [ "DNSAB-ARIN" ],
    "date_created" : "1995-09-06",
    "date_updated" : "2023-10-16",
    "source" : "https://rdap.arin.net/registry/autnum/5719"
  } ],
  "organization" : {
    "handle" : "SUNYASB-Z",
    "name" : "State University of New York at Stony Brook",
    "address" : [ "247 ECC Building", "Stony Brook", "NY", "11794-2620", "US" ],
    "city" : "Stony Brook",
    "state" : "NY",
    "zip_code" : "11794-2620",
    "country" : [ "US" ],
    "date_created" : "2023-06-05",
    "date_updated" : "2023-06-05",
    "source" : "https://rdap.arin.net/registry/entity/SUNYASB-Z",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "BB3872-ARIN",
    "name" : "Barzideh, Behzad",
    "email" : [ "behzad.barzideh@stonybrook.edu" ],
    "phone" : [ "+1-631-632-2899" ],
    "source" : "https://rdap.arin.net/registry/entity/BB3872-ARIN"
  }, {
    "handle" : "DNSTE13-ARIN",
    "name" : "DNS TECH",
    "email" : [ "behzad.barzideh@stonybrook.edu" ],
    "phone" : [ "+1-631-632-2899" ],
    "source" : "https://rdap.arin.net/registry/entity/DNSTE13-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "DNSAB-ARIN",
    "name" : "DNS Abuse",
    "email" : [ "abuse@stonybrook.edu" ],
    "phone" : [ "+1-631-632-2899" ],
    "source" : "https://rdap.arin.net/registry/entity/DNSAB-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS3754	NYSERNet	US
AS3630	NYSERNet	US
AS174	Cogent Communications, LLC	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS3754	NYSERNet	US
AS3630	NYSERNet	US
AS174	Cogent Communications, LLC	US
AS54004	Cablevision Lightpath LLC	US

Contacts

Email Contacts

behzad.barzideh@stonybrook.edu

Abuse Contacts

abuse@stonybrook.edu