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 4 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	3
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
216.31.62.0/23	AS19388	Team Cymru Inc.	Team Cymru Inc.	512
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:        2024-11-25
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

OrgTechHandle: NOC13461-ARIN
OrgTechName:   NOC
OrgTechPhone:  +1-847-378-3300 
OrgTechEmail:  peering@cymru.com
OrgTechRef:    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

RNOCHandle: ATL13-ARIN
RNOCName:   AS19388 TC Labs
RNOCPhone:  +1-847-378-3300 
RNOCEmail:  as19388@cymru.com
RNOCRef:    https://rdap.arin.net/registry/entity/ATL13-ARIN

RTechHandle: ATL13-ARIN
RTechName:   AS19388 TC Labs
RTechPhone:  +1-847-378-3300 
RTechEmail:  as19388@cymru.com
RTechRef:    https://rdap.arin.net/registry/entity/ATL13-ARIN

RAbuseHandle: ATL13-ARIN
RAbuseName:   AS19388 TC Labs
RAbusePhone:  +1-847-378-3300 
RAbuseEmail:  as19388@cymru.com
RAbuseRef:    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" : "2024-11-25",
    "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" : [ "+1-847-378-3300" ],
    "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" : [ "+1-847-378-3300" ],
    "source" : "https://rdap.arin.net/registry/entity/ATL13-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS12552	GlobalConnect AB	SE
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS60602	Inovare-Prim SRL	MD
AS38880	Micron21 Datacentre Pty Ltd	AU
AS31133	PJSC MegaFon	RU
AS198150	SIACOM JSC	GE
AS267256	ONETIS TECNOLOGIA LTDA	BR
AS37468	Angola Cables	AO
AS199524	G-Core Labs S.A.	LU
AS14773	Lancaster Lebanon Intermediate Unit 13	US

Upstreams

AS Number	Description	Country
AS7195	EDGEUNO S.A.S	CO
AS34927	iFog GmbH	CH
AS39351	31173 Services AB	SE
AS6939	Hurricane Electric LLC	US
AS6204	ZET.NET IP Transit	RO
AS6663	Euroweb Romania S.R.L.	RO
AS34019	Hivane Association	FR
AS37468	Angola Cables	AO
AS43727	JSC KVANT TELEKOM	RU
AS6777	Amsterdam Internet Exchange B.V.	NL