ASN AS18537 is an Autonomous System Number used to identify a network for BGP internet routing.

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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AS18537 PPDI | IPGeolocation.io

ASN Lookup Tool

PPDI ppdi.com

US 1 Routes

AS Data

AS18537

AS18537 – PPDI

AS Number	18537
AS Name	PPD-AUSTIN
Organization	PPDI(ppd-17)
Country	US
Website	ppdi.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2007-07-31

ASN Intelligence API for production workflows

Use ASN data for AS18537 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.178.190.0/24	AS18537	PPDI	PPDI	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:       18537
ASName:         PPD-AUSTIN
ASHandle:       AS18537
RegDate:        2007-07-31
Updated:        2017-01-30    
Ref:            https://rdap.arin.net/registry/autnum/18537


OrgName:        PPDI
OrgId:          PPD-17
Address:        929 North Front St
City:           Wilmington
StateProv:      NC
PostalCode:     28401
Country:        US
RegDate:        2006-01-19
Updated:        2025-01-30
Comment:        www.ppdi.com
Ref:            https://rdap.arin.net/registry/entity/PPD-17


OrgAbuseHandle: HBO2-ARIN
OrgAbuseName:   Bottles, Howard 
OrgAbusePhone:  +1-512-747-5151 
OrgAbuseEmail:  howard.bottles@ppd.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HBO2-ARIN

OrgTechHandle: MME203-ARIN
OrgTechName:   Easo, Merin Mathew
OrgTechPhone:  +918095503552 
OrgTechEmail:  merin.easo@ppd.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MME203-ARIN

OrgTechHandle: HBO2-ARIN
OrgTechName:   Bottles, Howard 
OrgTechPhone:  +1-512-747-5151 
OrgTechEmail:  howard.bottles@ppd.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HBO2-ARIN

OrgNOCHandle: HBO2-ARIN
OrgNOCName:   Bottles, Howard 
OrgNOCPhone:  +1-512-747-5151 
OrgNOCEmail:  howard.bottles@ppd.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/HBO2-ARIN

RTechHandle: BRP4-ARIN
RTechName:   Powell, Brian Ronald
RTechPhone:  +1-910-512-5691 
RTechEmail:  brian.powell@ppdi.com
RTechRef:    https://rdap.arin.net/registry/entity/BRP4-ARIN

RTechHandle: HBO2-ARIN
RTechName:   Bottles, Howard 
RTechPhone:  +1-512-747-5151 
RTechEmail:  howard.bottles@ppd.com
RTechRef:    https://rdap.arin.net/registry/entity/HBO2-ARIN

RAbuseHandle: BRP4-ARIN
RAbuseName:   Powell, Brian Ronald
RAbusePhone:  +1-910-512-5691 
RAbuseEmail:  brian.powell@ppdi.com
RAbuseRef:    https://rdap.arin.net/registry/entity/BRP4-ARIN

RAbuseHandle: HBO2-ARIN
RAbuseName:   Bottles, Howard 
RAbusePhone:  +1-512-747-5151 
RAbuseEmail:  howard.bottles@ppd.com
RAbuseRef:    https://rdap.arin.net/registry/entity/HBO2-ARIN

RNOCHandle: BRP4-ARIN
RNOCName:   Powell, Brian Ronald
RNOCPhone:  +1-910-512-5691 
RNOCEmail:  brian.powell@ppdi.com
RNOCRef:    https://rdap.arin.net/registry/entity/BRP4-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
AS3356	Level 3 Parent, LLC	US
AS11427	Charter Communications Inc	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US