View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	199.5.172.0/24	Carroll College
	205.207.148.0/23	Montana Internet Corporation
	206.127.64.0/18	Montana Internet Corporation
	209.161.128.0/19	Montana Internet Corporation
	2607:f6b8::/32	Montana Internet Corporation

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy vigilant_rosalind Policy crazy_einstein Policy lucid_haslett

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✔
	AS6939	Hurricane Electric LLC	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS6461	Zayo Bandwidth	✔	✔
	AS399986	St. Peter's Health	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS52025	ParadoxNetworks Limited	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS9002	RETN Limited	✔	✘
	AS47689	Pudu, LLC	✔	✘
	AS395823	doof.net	✔	✘
	AS55850	Mercury NZ Limited	✔	✘
	AS393577	Tritan Development	✔	✘
	AS64289	Macarne.com	✔	✘
	AS16276	OVH SAS	✔	✘
	AS54429	Local Connectivity Lab	✔	✘
	AS27523	Kawaii Networks LLC	✔	✘
	AS20473	The Constant Company, LLC	✔	✘
	AS62642	Bigleaf Networks, Inc.	✔	✘
	AS16909	imput	✔	✘
	AS4474	TCT West, Inc.	✔	✘
	AS46997	Black Mesa Corporation	✔	✘
	AS40350	Key Cooperative	✔	✘
	AS4842	Tianhai InfoTech	✔	✘
	AS27578	AirBridge Broadband LLC	✔	✘
	AS205329	Kai-Jung Chen	✔	✘
	AS7575	Australian Academic and Research Network (AARNet)	✔	✘
	AS46733	x6c	✔	✘
	AS199524	Gcore S.A.	✔	✘
	AS215724	Edgevana, Inc.	✔	✘
	AS400818	Ausra LLC	✔	✘
	AS32943	Web of Nevada	✔	✘
	AS18914	ETS TELECOM	✔	✘
	AS9299	PLDT (Philippine Long Distance Telephone Company)	✔	✘
	AS10242	US Internet Corp	✔	✘
	AS53597	Hoyos Consulting LLC	✔	✘
	AS4455	IX Reach Ltd	✔	✘
	AS32133	Ting Fiber Inc.	✔	✘
	AS24482	SG.GS	✔	✘
	AS398465	Rackdog LLC	✔	✘
	AS917	Misaka Network, Inc.	✔	✘
	AS62887	WhiteSky Communications, LLC.	✔	✘
	AS55818	Matrix Cable Internet Exchange	✔	✘
	AS23033	Wowrack.com	✔	✘
	AS397326	South Front Networks	✔	✘
	AS50131	Spartan Host Ltd	✔	✘
	AS36236	NetActuate, Inc	✔	✘
	AS136557	Host Universal Pty Ltd	✔	✘
	AS23428	ServerForge LLC	✔	✘
	AS394256	Tech Futures Interactive Inc.	✔	✘
	AS293	ESnet	✔	✘
	AS13415	FirstDigital Communications, LLC	✔	✘
	AS215248	Bastiaan Mathijs Brink	✔	✘
	AS19754	The Fusion Network, LLC	✔	✘
	AS20055	Ziply Fiber	✔	✘

---

Downstreams

	ASN	Description	IPv4	IPv6
	AS399986	St. Peter's Health	✔	✘

ASHandle:       AS4043
OrgID:          MIC-Z
ASName:         MIC-ASN
ASNumber:       4043
RegDate:        1994-11-17
Updated:        2023-12-29
TechHandle:     AU8-ARIN
TechHandle:     FWC-ARIN
Source:         ARIN



OrgID:          MIC-Z
OrgName:        Montana Internet Corporation
CanAllocate:    
Street:         1424 National Ave
City:           Helena
State/Prov:     MT
Country:        US
PostalCode:     59601
RegDate:        2023-12-19
Updated:        2025-08-22
OrgAdminHandle: CRS12-ARIN
OrgTechHandle:  FWC-ARIN
OrgTechHandle:  JOSHU24-ARIN
OrgAbuseHandle: NANC-ARIN
OrgNOCHandle:   NANC-ARIN
Source:         ARIN





OrgAdminHandle:       CRS12-ARIN
OrgAdminName:         Charles Siefert
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        FWC-ARIN
OrgTechName:          Forrest Christian
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        JOSHU24-ARIN
OrgTechName:          Joshua Romandia
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NANC-ARIN
OrgAbuseName:          Network Abuse and NOC Contact
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         NANC-ARIN
OrgNOCName:            Network Abuse and NOC Contact
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           AU8-ARIN
TechName:             Andy Utick
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           FWC-ARIN
TechName:             Forrest Christian
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-05-07T03:37:01Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-gblx	964
BELL	as6539:as-customers	475
ALTDB	as-set-as4043	2
RADB	as-10835-transit	99