ASN AS19551 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19551?

AS19551 is listed under Incapsula 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.

AS19551 Incapsula Inc | IPGeolocation.io

ASN Lookup Tool

Incapsula Inc thalesgroup.com

US 1571 Routes

AS Data

AS19551

AS19551 – Incapsula Inc

AS Number	19551
AS Name	INCAPSULA
Organization	Incapsula Inc(incap-5)
Country	US
Website	thalesgroup.com
Number of IPv4 Routes	866
Number of IPv6 Routes	705
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2011-01-12

ASN Intelligence API for production workflows

Use ASN data for AS19551 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
45.60.42.0/24	AS19551	Incapsula Inc	Incapsula Inc	256
45.223.75.0/24	AS19551	Incapsula Inc	Incapsula Inc	256
2a02:e980:124::/48	AS19551	Incapsula Inc	THALES IMPERVA EU6 NET 2A02 E	~1×10²⁴
107.154.237.0/24	AS19551	Incapsula Inc	Incapsula Inc	256
45.60.101.0/24	AS19551	Incapsula Inc	Incapsula Inc	256
45.60.155.0/24	AS19551	Incapsula Inc	Incapsula Inc	256
2a02:e980:e::/48	AS19551	Incapsula Inc	THALES IMPERVA EU6 NET 2A02 E	~1×10²⁴
107.154.2.0/24	AS19551	Incapsula Inc	Incapsula Inc	256
2a02:e980:19d::/48	AS19551	Incapsula Inc	THALES IMPERVA EU6 NET 2A02 E	~1×10²⁴
2a02:e980:1b3::/48	AS19551	Incapsula Inc	THALES IMPERVA EU6 NET 2A02 E	~1×10²⁴

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:       19551
ASName:         INCAPSULA
ASHandle:       AS19551
RegDate:        2011-01-12
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/19551


OrgName:        Incapsula Inc
OrgId:          INCAP-5
Address:        One Curiosity Way, Suite 203
City:           SAN MATEO
StateProv:      CA
PostalCode:     94403
Country:        US
RegDate:        2010-09-15
Updated:        2026-03-16
Ref:            https://rdap.arin.net/registry/entity/INCAP-5


OrgTechHandle: NETEN40-ARIN
OrgTechName:   NetEng
OrgTechPhone:  +1-650-345-9000 
OrgTechEmail:  ww.dis.imperva.rir@thalesgroup.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETEN40-ARIN

OrgRoutingHandle: NETEN40-ARIN
OrgRoutingName:   NetEng
OrgRoutingPhone:  +1-650-345-9000 
OrgRoutingEmail:  ww.dis.imperva.rir@thalesgroup.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETEN40-ARIN

OrgNOCHandle: NOC33850-ARIN
OrgNOCName:   NOC
OrgNOCPhone:  +1-650-345-9000 
OrgNOCEmail:  ww.dis.incapsula.noc@thalesgroup.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC33850-ARIN

OrgAbuseHandle: ABUSE9265-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-650-345-9000 
OrgAbuseEmail:  ww.dis.abuse@thalesgroup.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE9265-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
AS22884	TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.	MX
AS57435	APS Bank P.L.C.	MT
AS58057	Securebit AG	CH
AS28792	Public Internet Ltd	GB
AS40994	Hohl IT e.U.	AT
AS38880	Micron21 Datacentre Pty Ltd	AU
AS60144	3W Infra B.V.	NL
AS140940	PT Bank Seabank Indonesia	ID
AS201054	Stowarzyszenie e Poludnie	PL
AS6079	RCN	US

Upstreams

AS Number	Description	Country
AS12552	GlobalConnect AB	SE
AS5511	Orange S.A.	FR
AS6762	TELECOM ITALIA SPARKLE S.p.A.	IT
AS39249	Netassist International EOOD	BG
AS286	GTT Communications Inc.	US
AS23520	Columbus Networks USA, Inc.	US
AS31133	PJSC MegaFon	RU
AS4230	CLARO S.A.	BR
AS37468	Angola Cables	AO
AS60707	Kapteyan Bilisim Teknolojileri Sanayi ve Ticaret A.S	TR

Downstreams

AS Number	Description	Country
AS3762	Instinet	US
AS57435	APS Bank P.L.C.	MT
AS22884	TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.	MX
AS17983	Coles Supermarkets Australia Pty Ltd	AU
AS6307	American Express Company	US
AS263220	BANCO PROMERICA COSTA RICA	CR
AS57144	BCC SISTEMI INFORMATICI S.P.A.	IT
AS39584	Legal & General Investment Management Holdings Ltd	GB
AS204775	D.S.T.U. Telecom Limited	CY
AS400628	Automobile Club of Southern California	US

Contacts

Email Contacts

ww.dis.imperva.rir@thalesgroup.com

Abuse Contacts

ww.dis.abuse@thalesgroup.com

Legacy Routes

45.223.12.0/24