ASN AS19637 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19637?

AS19637 is listed under Avago Technologies U.S. 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.

AS19637 Avago Technologies U.S. Inc.

ASN Lookup Tool

Avago Technologies U.S. Inc. broadcom.com

US 103 Routes

AS Data

AS19637

AS19637 – Avago Technologies U.S. Inc.

AS Number	19637
AS Name	AVG19637
Organization	Avago Technologies U.S. Inc.(atu-3)
Country	US
Website	broadcom.com
Number of IPv4 Routes	94
Number of IPv6 Routes	9
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2001-01-29

ASN Intelligence API for production workflows

Use ASN data for AS19637 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2604:b040:589::/48	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	~1×10²⁴
135.14.236.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.220.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.152.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.164.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.211.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.143.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.232.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.202.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. Inc.	256
192.19.134.0/24	AS19637	Avago Technologies U.S. Inc.	Avago Technologies U.S. 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:       19637
ASName:         AVG19637
ASHandle:       AS19637
RegDate:        2001-01-29
Updated:        2014-09-19    
Ref:            https://rdap.arin.net/registry/autnum/19637


OrgName:        Avago Technologies U.S. Inc.
OrgId:          ATU-3
Address:        1320 Ridder Park Drive
City:           San Jose
StateProv:      CA
PostalCode:     95131
Country:        US
RegDate:        2006-01-23
Updated:        2021-04-19
Ref:            https://rdap.arin.net/registry/entity/ATU-3


OrgTechHandle: NVS2-ARIN
OrgTechName:   Network and Voice Services
OrgTechPhone:  +1-888-574-4357 
OrgTechEmail:  domains.admin@broadcom.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NVS2-ARIN

OrgRoutingHandle: NUTHA-ARIN
OrgRoutingName:   nuthall, stephen 
OrgRoutingPhone:  +07827 232391 
OrgRoutingEmail:  stephen.nuthall@broadcom.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NUTHA-ARIN

OrgAbuseHandle: NVS2-ARIN
OrgAbuseName:   Network and Voice Services
OrgAbusePhone:  +1-888-574-4357 
OrgAbuseEmail:  domains.admin@broadcom.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NVS2-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
AS7474	SingTel Optus Pty Ltd	AU
AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	MY
AS9930	TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia	MY
AS9498	Bharti Airtel Limited	IN
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS8866	Vivacom Bulgaria EAD	BG
AS3491	PCCW Global	US
AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	TW
AS286	GTT Communications Inc.	US
AS33652	Comcast Cable Communications, LLC	US

Upstreams

AS Number	Description	Country
AS7474	SingTel Optus Pty Ltd	AU
AS9498	Bharti Airtel Limited	IN
AS8866	Vivacom Bulgaria EAD	BG
AS9924	Taiwan Fixed Network, Telco and Network Service Provider.	TW
AS286	GTT Communications Inc.	US
AS33652	Comcast Cable Communications, LLC	US
AS33667	Comcast Cable Communications, LLC	US
AS12849	Hot Net internet services Ltd.	IL
AS1221	Telstra Limited	AU
AS6461	Zayo Bandwidth	US