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	Prefix	Description
	66.62.88.0/21	Zayo Bandwidth
	66.62.128.0/24	Zayo Bandwidth
	66.62.160.0/21	Zayo Bandwidth
	66.62.168.0/21	Zayo Bandwidth
	66.62.176.0/21	Zayo Bandwidth
	66.62.200.0/21	Zayo Bandwidth
	66.62.227.0/24	Zayo Bandwidth
	66.62.228.0/22	Zayo Bandwidth
	216.166.128.0/18	Zayo Bandwidth
	66.62.0.0/16	Zayo Bandwidth
	2607:f1e0::/32	Zayo Bandwidth

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✔
	AS16503	Zayo Bandwidth	✔	✘
	AS32605	BraveSoftTech Inc	✔	✘
	AS23211	J2 Cloud Services, LLC	✔	✘
	AS10947	Mountain West Technologies Corporation	✘	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS32605	BraveSoftTech Inc	✔	✘
	AS10947	Mountain West Technologies Corporation	✘	✔
	AS23211	J2 Cloud Services, LLC	✔	✘
	AS16503	Zayo Bandwidth	✔	✘

ASHandle:       AS19092
OrgID:          ZAYOB
ASName:         360NETWORKS-US
ASNumber:       19092
RegDate:        2000-11-17
Updated:        2016-12-02
Source:         ARIN



OrgID:          ZAYOB
OrgName:        Zayo Bandwidth
CanAllocate:    
Street:         1401 Wynkoop St.
Street:         #500
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80202
RegDate:        2007-10-12
Updated:        2024-11-25
OrgAdminHandle: ZIE-ARIN
OrgTechHandle:  ZIE-ARIN
OrgAbuseHandle: ABUSE5675-ARIN
OrgNOCHandle:   ZIE-ARIN
Source:         ARIN





OrgAdminHandle:       ZIE-ARIN
OrgAdminName:          Zayo IP Engineering
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ZIE-ARIN
OrgTechName:           Zayo IP Engineering
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE5675-ARIN
OrgAbuseName:          Abuse
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         ZIE-ARIN
OrgNOCName:            Zayo IP Engineering
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-11T03:29:43Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-lumen-customers-asns	10695
RADB	as7575:as-peer	256
LEVEL3	as-level3-customers-na	0
LEVEL3	as-level3-origins-na	0
RADB	as-any2-rs	247