ASN AS55219 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55219?

AS55219 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.

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AS55219 Cisco Systems, Inc. | IPGeolocation.io

Cisco Systems, Inc. cisco.com

US 12 Routes

AS Data

AS55219

AS55219 – Cisco Systems, Inc.

AS Number	55219
AS Name	SOURCEFIRE-LABS
Organization	Cisco Systems, Inc. (cs-985)
Country	US
Website	cisco.com
Number of IPv4 Routes	4
Number of IPv6 Routes	8
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2013-04-24

ASN Intelligence API for production workflows

Use ASN data for AS55219 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2620:121:2::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
2620:121::/44	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~19×10²⁴
12.167.151.0/24	AS55219	Cisco Systems, Inc.	AT&T Enterprises, LLC	256
172.110.204.0/22	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	1024
2620:121:1::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
2620:28:c000::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
2620:121:4::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
2620:121::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
2620:121:7::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
2620:121:6::/48	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	~1×10²⁴
172.110.204.0/23	AS55219	Cisco Systems, Inc.	Cisco Systems, Inc.	512
198.148.78.0/23	AS55219	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:       55219
ASName:         SOURCEFIRE-LABS
ASHandle:       AS55219
RegDate:        2013-04-24
Updated:        2015-07-01
Ref:            https://rdap.arin.net/registry/autnum/55219


OrgName:        Cisco Systems, Inc.
OrgId:          CS-985
Address:        Talos
Address:        8135 Maple Lawn Blvd
City:           Fulton
StateProv:      MD
PostalCode:     20759
Country:        US
RegDate:        2015-06-12
Updated:        2025-08-29
Ref:            https://rdap.arin.net/registry/entity/CS-985


OrgDNSHandle: SINGH711-ARIN
OrgDNSName:   Singh, Sanjay 
OrgDNSPhone:  +1-408-527-4147 
OrgDNSEmail:  sansingh@cisco.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/SINGH711-ARIN

OrgAbuseHandle: BONDA36-ARIN
OrgAbuseName:   Bondalapati, Prasanth 
OrgAbusePhone:  +1-301-256-3412 
OrgAbuseEmail:  pbondala@cisco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BONDA36-ARIN

OrgTechHandle: TALOS-ARIN
OrgTechName:   Talos Operations
OrgTechPhone:  +1-301-256-3412 
OrgTechEmail:  talos.ops@cisco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TALOS-ARIN

OrgRoutingHandle: TALOS-ARIN
OrgRoutingName:   Talos Operations
OrgRoutingPhone:  +1-301-256-3412 
OrgRoutingEmail:  talos.ops@cisco.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/TALOS-ARIN

OrgTechHandle: BONDA36-ARIN
OrgTechName:   Bondalapati, Prasanth 
OrgTechPhone:  +1-301-256-3412 
OrgTechEmail:  pbondala@cisco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BONDA36-ARIN

OrgRoutingHandle: BONDA36-ARIN
OrgRoutingName:   Bondalapati, Prasanth 
OrgRoutingPhone:  +1-301-256-3412 
OrgRoutingEmail:  pbondala@cisco.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/BONDA36-ARIN

OrgTechHandle: SINGH711-ARIN
OrgTechName:   Singh, Sanjay 
OrgTechPhone:  +1-408-527-4147 
OrgTechEmail:  sansingh@cisco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SINGH711-ARIN

OrgNOCHandle: TALOS-ARIN
OrgNOCName:   Talos Operations
OrgNOCPhone:  +1-301-256-3412 
OrgNOCEmail:  talos.ops@cisco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/TALOS-ARIN

OrgDNSHandle: ATEMK-ARIN
OrgDNSName:   Atemkeng, Gildas 
OrgDNSPhone:  +1-667-415-6660 
OrgDNSEmail:  gatemken@cisco.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ATEMK-ARIN

OrgDNSHandle: TALOS-ARIN
OrgDNSName:   Talos Operations
OrgDNSPhone:  +1-301-256-3412 
OrgDNSEmail:  talos.ops@cisco.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/TALOS-ARIN

OrgNOCHandle: BONDA36-ARIN
OrgNOCName:   Bondalapati, Prasanth 
OrgNOCPhone:  +1-301-256-3412 
OrgNOCEmail:  pbondala@cisco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BONDA36-ARIN

OrgAbuseHandle: SINGH711-ARIN
OrgAbuseName:   Singh, Sanjay 
OrgAbusePhone:  +1-408-527-4147 
OrgAbuseEmail:  sansingh@cisco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SINGH711-ARIN

OrgAbuseHandle: TALOS-ARIN
OrgAbuseName:   Talos Operations
OrgAbusePhone:  +1-301-256-3412 
OrgAbuseEmail:  talos.ops@cisco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TALOS-ARIN

OrgDNSHandle: BONDA36-ARIN
OrgDNSName:   Bondalapati, Prasanth 
OrgDNSPhone:  +1-301-256-3412 
OrgDNSEmail:  pbondala@cisco.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/BONDA36-ARIN

OrgNOCHandle: SINGH711-ARIN
OrgNOCName:   Singh, Sanjay 
OrgNOCPhone:  +1-408-527-4147 
OrgNOCEmail:  sansingh@cisco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SINGH711-ARIN

OrgRoutingHandle: ATEMK-ARIN
OrgRoutingName:   Atemkeng, Gildas 
OrgRoutingPhone:  +1-667-415-6660 
OrgRoutingEmail:  gatemken@cisco.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ATEMK-ARIN

OrgTechHandle: ATEMK-ARIN
OrgTechName:   Atemkeng, Gildas 
OrgTechPhone:  +1-667-415-6660 
OrgTechEmail:  gatemken@cisco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ATEMK-ARIN

OrgNOCHandle: ATEMK-ARIN
OrgNOCName:   Atemkeng, Gildas 
OrgNOCPhone:  +1-667-415-6660 
OrgNOCEmail:  gatemken@cisco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ATEMK-ARIN

OrgRoutingHandle: SINGH711-ARIN
OrgRoutingName:   Singh, Sanjay 
OrgRoutingPhone:  +1-408-527-4147 
OrgRoutingEmail:  sansingh@cisco.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/SINGH711-ARIN

OrgAbuseHandle: ATEMK-ARIN
OrgAbuseName:   Atemkeng, Gildas 
OrgAbusePhone:  +1-667-415-6660 
OrgAbuseEmail:  gatemken@cisco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ATEMK-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" : "55219",
    "as_handle" : "AS55219",
    "as_name" : "SOURCEFIRE-LABS",
    "admin_contacts" : [ "SINGH711-ARIN", "ATEMK-ARIN", "TALOS-ARIN", "BONDA36-ARIN" ],
    "tech_contacts" : [ "TALOS-ARIN", "TALOS-ARIN", "BONDA36-ARIN", "BONDA36-ARIN", "SINGH711-ARIN", "ATEMK-ARIN", "ATEMK-ARIN", "SINGH711-ARIN" ],
    "abuse_contacts" : [ "BONDA36-ARIN", "SINGH711-ARIN", "TALOS-ARIN", "ATEMK-ARIN" ],
    "date_created" : "2013-04-24",
    "date_updated" : "2015-07-01",
    "source" : "https://rdap.arin.net/registry/autnum/55219"
  } ],
  "organization" : {
    "handle" : "CS-985",
    "name" : "Cisco Systems, Inc.",
    "address" : [ "Talos", "8135 Maple Lawn Blvd", "Fulton", "MD", "20759", "US" ],
    "street" : "Maple Lawn Blvd",
    "city" : "Fulton",
    "state" : "MD",
    "zip_code" : "20759",
    "country" : [ "US" ],
    "date_created" : "2015-06-12",
    "date_updated" : "2025-08-29",
    "source" : "https://rdap.arin.net/registry/entity/CS-985",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "SINGH711-ARIN",
    "name" : "Singh, Sanjay",
    "email" : [ "sansingh@cisco.com" ],
    "phone" : [ "+1-408-527-4147" ],
    "source" : "https://rdap.arin.net/registry/entity/SINGH711-ARIN"
  }, {
    "handle" : "ATEMK-ARIN",
    "name" : "Atemkeng, Gildas",
    "email" : [ "gatemken@cisco.com" ],
    "phone" : [ "+1-667-415-6660" ],
    "source" : "https://rdap.arin.net/registry/entity/ATEMK-ARIN"
  }, {
    "handle" : "TALOS-ARIN",
    "name" : "Talos Operations",
    "email" : [ "talos.ops@cisco.com" ],
    "phone" : [ "+1-301-256-3412" ],
    "source" : "https://rdap.arin.net/registry/entity/TALOS-ARIN"
  }, {
    "handle" : "BONDA36-ARIN",
    "name" : "Bondalapati, Prasanth",
    "email" : [ "pbondala@cisco.com" ],
    "phone" : [ "+1-301-256-3412" ],
    "source" : "https://rdap.arin.net/registry/entity/BONDA36-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "TALOS-ARIN",
    "name" : "Talos Operations",
    "email" : [ "talos.ops@cisco.com" ],
    "phone" : [ "+1-301-256-3412" ],
    "source" : "https://rdap.arin.net/registry/entity/TALOS-ARIN"
  }, {
    "handle" : "BONDA36-ARIN",
    "name" : "Bondalapati, Prasanth",
    "email" : [ "pbondala@cisco.com" ],
    "phone" : [ "+1-301-256-3412" ],
    "source" : "https://rdap.arin.net/registry/entity/BONDA36-ARIN"
  }, {
    "handle" : "SINGH711-ARIN",
    "name" : "Singh, Sanjay",
    "email" : [ "sansingh@cisco.com" ],
    "phone" : [ "+1-408-527-4147" ],
    "source" : "https://rdap.arin.net/registry/entity/SINGH711-ARIN"
  }, {
    "handle" : "ATEMK-ARIN",
    "name" : "Atemkeng, Gildas",
    "email" : [ "gatemken@cisco.com" ],
    "phone" : [ "+1-667-415-6660" ],
    "source" : "https://rdap.arin.net/registry/entity/ATEMK-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "BONDA36-ARIN",
    "name" : "Bondalapati, Prasanth",
    "email" : [ "pbondala@cisco.com" ],
    "phone" : [ "+1-301-256-3412" ],
    "source" : "https://rdap.arin.net/registry/entity/BONDA36-ARIN"
  }, {
    "handle" : "SINGH711-ARIN",
    "name" : "Singh, Sanjay",
    "email" : [ "sansingh@cisco.com" ],
    "phone" : [ "+1-408-527-4147" ],
    "source" : "https://rdap.arin.net/registry/entity/SINGH711-ARIN"
  }, {
    "handle" : "TALOS-ARIN",
    "name" : "Talos Operations",
    "email" : [ "talos.ops@cisco.com" ],
    "phone" : [ "+1-301-256-3412" ],
    "source" : "https://rdap.arin.net/registry/entity/TALOS-ARIN"
  }, {
    "handle" : "ATEMK-ARIN",
    "name" : "Atemkeng, Gildas",
    "email" : [ "gatemken@cisco.com" ],
    "phone" : [ "+1-667-415-6660" ],
    "source" : "https://rdap.arin.net/registry/entity/ATEMK-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS12552	GlobalConnect AB	SE
AS25220	equada network GmbH	DE
AS20932	Service Telecom	CH
AS51907	Kanton Zug	CH
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS38880	Micron21 Datacentre Pty Ltd	AU
AS31133	PJSC MegaFon	RU
AS198150	SIACOM JSC	GE
AS14537	Continent 8 LLC	US
AS45352	IP ServerOne Solutions Sdn Bhd	MY
AS15943	wilhelm.tel GmbH	DE
AS31500	Global Network Management Inc	AG
AS37468	Angola Cables	AO
AS47957	Worldline IGSA SA	FR
AS14907	Wikimedia Foundation Inc.	US
AS34288	Kantonsschule Zug	CH
AS293	ESnet	US
AS394177	SHIFT HOSTING LLC	US
AS58511	Anycast Holdings Pty Ltd	AU
AS49127	Asimo Networks B.V.	NL
AS53597	Hoyos Consulting LLC	US
AS213576	Robert Weir	IE
AS37497	Network Platforms PTY LTD	ZA
AS23367	Adaptive Data Networks, LLC	US
AS50673	Serverius Holding B.V.	NL
AS6461	Zayo Bandwidth	US
AS207113	Cyrus Mbitao trading as Wofbit Networks	KE
AS12859	BIT BV	NL
AS206735	Novelcomm LP	GR
AS398465	Rackdog, LLC	US
AS13237	euNetworks GmbH	DE
AS14840	BR.Digital Telecom	BR
AS32590	Valve Corporation	US
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS20766	Association Gitoyen	FR
AS399337	Netcrawler Inc	CA
AS559	SWITCH	CH
AS51873	Arcade Solutions AG	CH
AS60602	Inovare Prim SRL	MD
AS8801	Rocket Fibre Ltd	GB
AS20647	IPB Internet Provider in Berlin GmbH	DE
AS61461	Airtek Solutions C.A.	VE
AS56457	FASTPATH IKE	GR
AS52210	Accuris Technologies Ltd.	CA
AS1828	Unitas Global	US
AS211358	Patrizio Palumbo	IT
AS19009	Missouri Network Alliance, LLC	US
AS57695	Misaka Network, Inc.	US
AS63927	RISE ASIA TECHNOLOGY LIMITED	PH
AS23106	AMERICAN TOWER DO BRASIL COMUNICAÇÃO MULTIMÍDIA LT	BR
AS8298	IPng Networks GmbH	CH
AS28917	Fiord Networks, UAB	LT
AS14630	Invesco Group Services, Inc.	US
AS55685	PT Jala Lintas Media	ID
AS132337	AXCLUSIVE PTE. LTD.	SG
AS34177	Celeste SAS	FR
AS34019	Hivane Association	FR
AS6777	Amsterdam Internet Exchange B.V.	NL
AS28398	INTERNET TELEFONIA Y TV DE MICHOACAN SA DE CV	MX
AS52025	ParadoxNetworks Limited	GB

Upstreams

AS Number	Description	Country
AS7195	EDGEUNO S.A.S	CO
AS34927	iFog GmbH	CH
AS1764	Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH	AT
AS39351	31173 Services AB	SE
AS6204	ZET.NET IP Transit	RO
AS25091	IP Max SA	CH
AS6939	Hurricane Electric LLC	US
AS48362	Stadtwerke Feldkirch	AT
AS8298	IPng Networks GmbH	CH
AS6663	Euroweb Romania S.R.L.	RO
AS34177	Celeste SAS	FR
AS34019	Hivane Association	FR
AS37468	Angola Cables	AO
AS6777	Amsterdam Internet Exchange B.V.	NL
AS20764	CJSC RASCOM	RU
AS60171	AFR IX TELECOM S.A.	ES
AS15958	CETIN Ltd. Belgrade	RS
AS37497	Network Platforms PTY LTD	ZA
AS61049	Exascale Ltd	GB
AS47147	ANEXIA Internetdienstleistungs GmbH	AT
AS50673	Serverius Holding B.V.	NL
AS6797	GlobalConnect AB	SE
AS1103	SURF B.V.	NL
AS37100	SEACOM Limited	MU
AS6461	Zayo Bandwidth	US
AS47886	Equinix Netherlands B.V.	NL
AS3216	PJSC Vimpelcom	RU
AS8220	COLT Technology Services Group Limited	GB
AS14840	BR.Digital Telecom	BR
AS9002	RETN Limited	GB
AS24961	WIIT AG	DE
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS20766	Association Gitoyen	FR
AS5405	Inter.link GmbH	DE
AS12779	IT.Gate S.p.A.	IT
AS13786	Seabras 1 USA, LLC	US
AS13194	UAB Bite Lietuva	LT
AS15576	NTS workspace AG	CH
AS35280	F5 Networks SARL	FR
AS30844	Liquid Telecommunications Ltd	GB
AS3356	Level 3 Parent, LLC	US
AS9044	BSE Software GmbH	CH
AS701	Verizon Business	US
AS137409	GSL Networks Pty LTD	AU

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