ASN AS19388 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19388?

AS19388 is listed under Team Cymru 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?

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AS19388 Team Cymru Inc. | IPGeolocation.io

ASN Lookup Tool

Team Cymru Inc. cymru.com

US 3 Routes

AS Data

AS19388

AS19388 – Team Cymru Inc.

AS Number	19388
AS Name	TEAM-CYMRU-3
Organization	Team Cymru Inc. (teamc-1)
Country	US
Website	cymru.com
Number of IPv4 Routes	2
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2025-12-05

ASN Intelligence API for production workflows

Use ASN data for AS19388 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2604:8800:ffff::/48	AS19388	Team Cymru Inc.	Team Cymru Inc.	~1×10²⁴
216.31.63.0/24	AS19388	Team Cymru Inc.	Team Cymru Inc.	256
216.31.62.0/24	AS19388	Team Cymru Inc.	Team Cymru Inc.	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:       19388
ASName:         TEAM-CYMRU-3
ASHandle:       AS19388
RegDate:        2025-12-05
Updated:        2025-12-10
Comment:        https://www.team-cymru.com
Comment:        Please contact peering@cymru.com for assistance
Comment:        Standard support hours are 8:00 AM to 6:00 PM EST
Ref:            https://rdap.arin.net/registry/autnum/19388


OrgName:        Team Cymru Inc.
OrgId:          TEAMC-1
Address:        901 International Parkway
Address:        Suite 350
City:           Lake Mary
StateProv:      FL
PostalCode:     32746
Country:        US
RegDate:        2005-08-12
Updated:        2026-06-22
Ref:            https://rdap.arin.net/registry/entity/TEAMC-1


OrgAbuseHandle: NOC13461-ARIN
OrgAbuseName:   NOC
OrgAbusePhone:  +1-847-378-3300 
OrgAbuseEmail:  peering@cymru.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC13461-ARIN

OrgNOCHandle: NOC13461-ARIN
OrgNOCName:   NOC
OrgNOCPhone:  +1-847-378-3300 
OrgNOCEmail:  peering@cymru.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC13461-ARIN

OrgTechHandle: NOC13461-ARIN
OrgTechName:   NOC
OrgTechPhone:  +1-847-378-3300 
OrgTechEmail:  peering@cymru.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC13461-ARIN

RTechHandle: ATL13-ARIN
RTechName:   AS19388 TC Labs
RTechPhone:  +1-407-878-7833 
RTechEmail:  as19388@cymru.com
RTechRef:    https://rdap.arin.net/registry/entity/ATL13-ARIN

RAbuseHandle: ATL13-ARIN
RAbuseName:   AS19388 TC Labs
RAbusePhone:  +1-407-878-7833 
RAbuseEmail:  as19388@cymru.com
RAbuseRef:    https://rdap.arin.net/registry/entity/ATL13-ARIN

RNOCHandle: ATL13-ARIN
RNOCName:   AS19388 TC Labs
RNOCPhone:  +1-407-878-7833 
RNOCEmail:  as19388@cymru.com
RNOCRef:    https://rdap.arin.net/registry/entity/ATL13-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" : "19388",
    "as_handle" : "AS19388",
    "as_name" : "TEAM-CYMRU-3",
    "tech_contacts" : [ "NOC13461-ARIN", "ATL13-ARIN" ],
    "abuse_contacts" : [ "NOC13461-ARIN", "ATL13-ARIN" ],
    "date_created" : "2025-12-05",
    "date_updated" : "2025-12-10",
    "source" : "https://rdap.arin.net/registry/autnum/19388"
  } ],
  "organization" : {
    "handle" : "TEAMC-1",
    "name" : "Team Cymru Inc.",
    "address" : [ "901 International Parkway", "Suite 350", "Lake Mary", "FL", "32746", "US" ],
    "street" : "International Parkway",
    "city" : "Lake Mary",
    "state" : "FL",
    "zip_code" : "32746",
    "country" : [ "US" ],
    "date_created" : "2005-08-12",
    "date_updated" : "2026-06-22",
    "source" : "https://rdap.arin.net/registry/entity/TEAMC-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NOC13461-ARIN",
    "name" : "NOC",
    "email" : [ "peering@cymru.com" ],
    "phone" : [ "+1-847-378-3300" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC13461-ARIN"
  }, {
    "handle" : "ATL13-ARIN",
    "name" : "AS19388 TC Labs",
    "email" : [ "as19388@cymru.com" ],
    "phone" : [ "+1-407-878-7833" ],
    "source" : "https://rdap.arin.net/registry/entity/ATL13-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NOC13461-ARIN",
    "name" : "NOC",
    "email" : [ "peering@cymru.com" ],
    "phone" : [ "+1-847-378-3300" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC13461-ARIN"
  }, {
    "handle" : "ATL13-ARIN",
    "name" : "AS19388 TC Labs",
    "email" : [ "as19388@cymru.com" ],
    "phone" : [ "+1-407-878-7833" ],
    "source" : "https://rdap.arin.net/registry/entity/ATL13-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS268624	Gamers Club Ltda	BR
AS48185	team.blue NV	BE
AS7195	EDGEUNO S.A.S	CO
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS39351	31173 Services AB	SE
AS6939	Hurricane Electric LLC	US
AS60602	Inovare-Prim SRL	MD
AS198150	SIACOM JSC	GE
AS267256	ONETIS TECNOLOGIA LTDA	BR
AS37468	Angola Cables	AO
AS199524	G-Core Labs S.A.	LU
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS14773	Lancaster Lebanon Intermediate Unit 13	US
AS34288	Kantonsschule Zug	CH
AS9498	Bharti Airtel Ltd	IN
AS22381	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS49127	Asimo Networks B.V.	NL
AS262588	EXPLORERNET INFOLINK TECNOLOGIA E TELECOMUNICACOES	BR
AS1000	LINK AMERICAN	US
AS51185	MainStreaming SpA	IT
AS263661	BRASIL DIGITAL SERVIÇOS DE INFORMATICA E COMERCIO	BR
AS60503	FNX Tecnologia LTDA	BR
AS34224	Neterra Ltd.	BG
AS53062	GGNET TELECOMUNICACOES LTDA	BR
AS206735	Novelcomm LP	GR
AS270353	Tyna Host - Datacenter no Brasil	BR
AS37721	Virtual Technologies & Solutions	BF
AS61573	IP TELECOM	BR
AS57463	NetIX Communications JSC	BG
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS8801	Rocket Fibre Ltd	GB
AS2734	CoreSite	US
AS1031	PEER 1031 LLC	US
AS212483	LEVEL EIGHTY SIX COMMUNICATIONS LTD	GB
AS1828	Unitas Global	US
AS999	CORIX NETWORKS	US
AS52999	START NETWORKS S/A	BR
AS20485	Joint Stock Company TransTeleCom	RU
AS264479	Turbozone Internet	BR
AS266519	PROVERADIO TELECOM	BR
AS61832	DB3 SERVICOS DE TELECOMUNICACOES S.A	BR
AS24482	SG.GS	SG
AS12741	Netia SA	PL
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.	CO
AS34927	iFog GmbH	CH
AS11432	Telium Telecomunicações Ltda	BR
AS31027	GlobalConnect A/S	DK
AS266213	PLANETCLICK TELECOMUNICACOES LTDA	BR
AS28917	Fiord Networks, UAB	LT
AS6663	Euroweb Romania S.R.L.	RO
AS264409	Huge Solucoes Corporativas Ltda	BR
AS8849	Melbikomas UAB	LT
AS56665	Proximus Luxembourg S.A.	LU
AS34019	Hivane Association	FR
AS6777	Amsterdam Internet Exchange B.V.	NL
AS36236	NetActuate, Inc	US
AS18106	Viewqwest Pte Ltd	SG
AS265197	são miguel telecomunicações e informatica ltda - m	BR
AS4455	IX Reach Ltd	GB

Upstreams

AS Number	Description	Country
AS7195	EDGEUNO S.A.S	CO
AS9002	RETN Limited	GB
AS34927	iFog GmbH	CH
AS39351	31173 Services AB	SE
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS6663	Euroweb Romania S.R.L.	RO
AS41327	Fiber Telecom S.p.A.	IT
AS3214	xTom GmbH	DE
AS34019	Hivane Association	FR
AS9370	SAKURA Internet Inc.	JP
AS37468	Angola Cables	AO
AS6777	Amsterdam Internet Exchange B.V.	NL
AS36236	NetActuate, Inc	US
AS4455	IX Reach Ltd	GB
AS20485	Joint Stock Company TransTeleCom	RU
AS9044	BSE Software GmbH	CH
AS137409	GSL Networks Pty LTD	AU