ASN AS36519 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS36519?

AS36519 is listed under CISCO SYSTEMS, INC..

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.

AS36519 CISCO SYSTEMS, INC. | IPGeolocation.io

ASN Lookup Tool

CISCO SYSTEMS, INC. cisco.com

US 2 Routes

AS Data

AS36519

AS36519 – CISCO SYSTEMS, INC.

AS Number	36519
AS Name	CISCO-TTNA
Organization	CISCO SYSTEMS, INC.(cs-2831)
Country	US
Website	cisco.com
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2019-09-09

ASN Intelligence API for production workflows

Use ASN data for AS36519 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2602:80a:f000::/48	AS36519	CISCO SYSTEMS, INC.	CISCO SYSTEMS, INC.	~1×10²⁴
172.98.16.0/23	AS36519	CISCO SYSTEMS, INC.	CISCO SYSTEMS, INC.	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:       36519
ASName:         CISCO-TTNA
ASHandle:       AS36519
RegDate:        2019-09-09
Updated:        2024-03-06    
Ref:            https://rdap.arin.net/registry/autnum/36519


OrgName:        CISCO SYSTEMS, INC.
OrgId:          CS-2831
Address:        251 LITTLE FALLS DRIVE
City:           WILMINGTON
StateProv:      DE
PostalCode:     19808
Country:        US
RegDate:        2023-06-07
Updated:        2024-02-16
Ref:            https://rdap.arin.net/registry/entity/CS-2831


OrgNOCHandle: GATC-ARIN
OrgNOCName:   GIS ARIN Technical Contact
OrgNOCPhone:  +1-408-526-8888 
OrgNOCEmail:  arin-tech@cisco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/GATC-ARIN

OrgAbuseHandle: CISCO6-ARIN
OrgAbuseName:   Cisco CSIRT
OrgAbusePhone:  +1-408-527-3227 
OrgAbuseEmail:  csirt-notify@cisco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CISCO6-ARIN

OrgTechHandle: GATC-ARIN
OrgTechName:   GIS ARIN Technical Contact
OrgTechPhone:  +1-408-526-8888 
OrgTechEmail:  arin-tech@cisco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/GATC-ARIN

RAbuseHandle: TTNA-ARIN
RAbuseName:   TXE Team - NOC Admins
RAbusePhone:  +1-408-859-8095 
RAbuseEmail:  txe-team@cisco.com
RAbuseRef:    https://rdap.arin.net/registry/entity/TTNA-ARIN

RNOCHandle: TTNA-ARIN
RNOCName:   TXE Team - NOC Admins
RNOCPhone:  +1-408-859-8095 
RNOCEmail:  txe-team@cisco.com
RNOCRef:    https://rdap.arin.net/registry/entity/TTNA-ARIN

RTechHandle: TTNA-ARIN
RTechName:   TXE Team - NOC Admins
RTechPhone:  +1-408-859-8095 
RTechEmail:  txe-team@cisco.com
RTechRef:    https://rdap.arin.net/registry/entity/TTNA-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

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US