ASN Lookup Tool

Theravance Biopharma US, LLC theravance.com US US 1 Routes

AS Data

AS14421

AS14421 – Theravance Biopharma US, LLC

AS Number 14421
AS Name THERAVANCE
Organization Theravance Biopharma US, LLC(tbu-3)
Country US
Website theravance.com
Number of IPv4 Routes 1
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 1999-12-09

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Use ASN data for AS14421 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
216.101.17.0/24 256

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:       14421
ASName:         THERAVANCE
ASHandle:       AS14421
RegDate:        1999-12-09
Updated:        2019-08-06    
Ref:            https://rdap.arin.net/registry/autnum/14421


OrgName:        Theravance Biopharma US, LLC
OrgId:          TBU-3
Address:        901 Gateway Blvd
City:           South San Francisco
StateProv:      CA
PostalCode:     94080
Country:        US
RegDate:        2018-11-13
Updated:        2025-02-25
Ref:            https://rdap.arin.net/registry/entity/TBU-3


OrgAbuseHandle: CHANA60-ARIN
OrgAbuseName:   Chan, Anthony 
OrgAbusePhone:  +1-650-808-6000 
OrgAbuseEmail:  achan@theravance.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CHANA60-ARIN

OrgTechHandle: SHINO4-ARIN
OrgTechName:   Shinoda, Dave 
OrgTechPhone:  +1-650-808-6488 
OrgTechEmail:  dshinoda@theravance.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SHINO4-ARIN

OrgTechHandle: CHANA60-ARIN
OrgTechName:   Chan, Anthony 
OrgTechPhone:  +1-650-808-6000 
OrgTechEmail:  achan@theravance.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CHANA60-ARIN

OrgAbuseHandle: SHINO4-ARIN
OrgAbuseName:   Shinoda, Dave 
OrgAbusePhone:  +1-650-808-6488 
OrgAbuseEmail:  dshinoda@theravance.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SHINO4-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
AS33667 Comcast Cable Communications, LLC US
AS33651 Comcast Cable Communications, LLC US

Upstreams

AS Number Description Country
AS33667 Comcast Cable Communications, LLC US
AS33651 Comcast Cable Communications, LLC US

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Frequently Asked Questions

ASN AS14421 is an Autonomous System Number used to identify a network for BGP internet routing.
AS14421 is listed under Theravance Biopharma US, LLC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.