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	Prefix	Description
	23.252.0.0/20	Mainstream Fiber Networks, LLC
	38.2.0.0/19	Mainstream Fiber Networks, LLC
	38.194.0.0/18	Mainstream Fiber Networks, LLC
	74.116.20.0/22	Mainstream Fiber Networks, LLC
	147.160.8.0/21	Mainstream Fiber Networks, LLC
	149.20.248.0/21	Mainstream Fiber Networks, LLC
	163.182.176.0/20	Mainstream Fiber Networks, LLC
	206.126.242.0/23	Mainstream Fiber Networks, LLC
	2607:1c80::/32	Mainstream Fiber Networks, LLC

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS6461	Zayo Bandwidth	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS6461	Zayo Bandwidth	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS137409	GSL Networks Pty LTD	✔	✔
	AS32097	WholeSale Internet, Inc.	✔	✘
	AS25091	IP-Max SA	✔	✔
	AS394177	Shift Hosting LLC	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS209823	Enki Multimedia EURL	✔	✘
	AS64289	Macarne.com	✔	✔
	AS35847	Ezee Fiber	✔	✔
	AS52025	ParadoxNetworks Limited	✔	✔
	AS16276	OVH SAS	✔	✔
	AS4230	Claro (Embratel)	✔	✔
	AS62467	TXNet Communications LLC	✔	✔
	AS6300	Fidium	✔	✘
	AS32590	Valve Corporation	✔	✔
	AS397423	Tier.Net Technologies LLC	✔	✔
	AS17378	TierPoint, LLC	✔	✔
	AS42473	Anexia Cloud Solutions GmbH	✔	✔
	AS30690	Kazehana Networks LLC	✔	✔
	AS401682	Dialwave, Inc.	✔	✔
	AS10242	US Internet Corp	✔	✔
	AS33218	Belzoni Cable, LLC	✔	✘
	AS32709	Joink, LLC	✔	✘
	AS28283	Adyl Telecom	✔	✔
	AS14907	Wikimedia Foundation Inc.	✔	✔
	AS4455	IX Reach Ltd	✔	✔
	AS13335	Cloudflare, Inc.	✔	✔
	AS215724	Edgevana, Inc.	✔	✘
	AS51531	DE-CIX Management GmbH	✔	✘
	AS28398	INTERNET TELEFONIA Y TV DE MICHOACAN SA DE CV	✔	✘
	AS29802	HIVELOCITY, Inc.	✘	✔
	AS20473	The Constant Company, LLC	✘	✔
	AS971	PureVoltage Hosting Inc.	✘	✔
	AS2734	CoreSite	✘	✔

ASHandle:       AS18615
OrgID:          MFNL-2
ASName:         MAINSTREAM-FIBER
ASNumber:       18615
RegDate:        2013-11-12
Updated:        2016-03-15
Source:         ARIN



OrgID:          MFNL-2
OrgName:        Mainstream Fiber Networks, LLC
CanAllocate:    
Street:         4788 Old State Road 46
City:           Nashville
State/Prov:     IN
Country:        US
PostalCode:     47448
RegDate:        2015-12-01
Updated:        2026-05-08
OrgAdminHandle: ZLV3-ARIN
OrgTechHandle:  GABRI2-ARIN
OrgTechHandle:  NBL12-ARIN
OrgTechHandle:  SERPI-ARIN
OrgTechHandle:  ZLV3-ARIN
OrgAbuseHandle: ABUSE8911-ARIN
OrgNOCHandle:   GABRI2-ARIN
OrgNOCHandle:   ZLV3-ARIN
OrgDNSHandle:   NBL12-ARIN
OrgDNSHandle:   SERPI-ARIN
Source:         ARIN





OrgAdminHandle:       ZLV3-ARIN
OrgAdminName:         Zach Vance
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        GABRI2-ARIN
OrgTechName:          Bryan Gabriel
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NBL12-ARIN
OrgTechName:          Nathaniel Lynn
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        SERPI-ARIN
OrgTechName:          Jon Serpico
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ZLV3-ARIN
OrgTechName:          Zach Vance
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE8911-ARIN
OrgAbuseName:          Abuse Complaints
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         GABRI2-ARIN
OrgNOCName:           Bryan Gabriel
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         ZLV3-ARIN
OrgNOCName:           Zach Vance
# Email removed, Log into bgp.tools to see whois emails


OrgDNSHandle:         NBL12-ARIN
OrgDNSName:           Nathaniel Lynn
# Email removed, Log into bgp.tools to see whois emails


OrgDNSHandle:         SERPI-ARIN
OrgDNSName:           Jon Serpico
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-08T03:24:26Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-windstream-cust	2138
ARIN	as62760:as-decix-ord-rs	78
ARIN	as62499:as-decix-dfw-rs	172
RADB	as-msfn	1
ARIN	as18615:as-all	3
ARIN	as62760:as-decix-ord-connected	78
ARIN	as62499:as-decix-dfw-connected	172
ARIN	as62760:as-decix-ord-rs-v6	78
ARIN	as62499:as-decix-dfw-v6	61454
ARIN	as62499:as-decix-dfw-rs-v6	172
ARIN	as62499:as-decix-dfw	63502
ARIN	as14333:as-peers	12