ASN AS19158 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19158?

AS19158 is listed under Zayo Bandwidth.

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.

AS19158 Zayo Bandwidth | IPGeolocation.io

ASN Lookup Tool

Zayo Bandwidth zayo.com

US 2 Routes

AS Data

AS19158

AS19158 – Zayo Bandwidth

AS Number	19158
AS Name	ZAYOB-19158
Organization	Zayo Bandwidth(zayob)
Country	US
Website	zayo.com
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2000-11-29

ASN Intelligence API for production workflows

Use ASN data for AS19158 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2001:438:8046::/48	AS19158	Zayo Bandwidth	Mordor Forging Test Account	~1×10²⁴
216.123.100.0/24	AS19158	Zayo Bandwidth	Mordor Forging Test Account	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:       19158
ASName:         ZAYOB-19158
ASHandle:       AS19158
RegDate:        2000-11-29
Updated:        2023-04-25    
Ref:            https://rdap.arin.net/registry/autnum/19158


OrgName:        Zayo Bandwidth
OrgId:          ZAYOB
Address:        1401 Wynkoop St.
Address:        #500
City:           Denver
StateProv:      CO
PostalCode:     80202
Country:        US
RegDate:        2007-10-12
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/ZAYOB


OrgTechHandle: ZIE-ARIN
OrgTechName:   Zayo IP Engineering
OrgTechPhone:  +1-866-236-2824 
OrgTechEmail:  ipeng@zayo.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZIE-ARIN

OrgAbuseHandle: ABUSE5675-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-866-236-2824 
OrgAbuseEmail:  abuse@zayo.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5675-ARIN

OrgNOCHandle: ZIE-ARIN
OrgNOCName:   Zayo IP Engineering
OrgNOCPhone:  +1-866-236-2824 
OrgNOCEmail:  ipeng@zayo.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZIE-ARIN

RNOCHandle: TECH1401-ARIN
RNOCName:   Tech
RNOCPhone:  +1-866-236-2824 
RNOCEmail:  nos@zayo.com
RNOCRef:    https://rdap.arin.net/registry/entity/TECH1401-ARIN

RTechHandle: TECH1401-ARIN
RTechName:   Tech
RTechPhone:  +1-866-236-2824 
RTechEmail:  nos@zayo.com
RTechRef:    https://rdap.arin.net/registry/entity/TECH1401-ARIN

RAbuseHandle: TECH1401-ARIN
RAbuseName:   Tech
RAbusePhone:  +1-866-236-2824 
RAbuseEmail:  nos@zayo.com
RAbuseRef:    https://rdap.arin.net/registry/entity/TECH1401-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
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS6461	Zayo Bandwidth	US

Contacts

Email Contacts

ipeng@zayo.com

Abuse Contacts

abuse@zayo.com