Report for 4043

Name

MIC-ASN - Montana Internet Corporation, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

4043 MIC-ASN - Montana Internet Corporation, US

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS7575          AARNET-AS-AP - Australian Academic and Research Network (AARNet), AU
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
  Downstream Adjacent AS list
    AS399986        SPH-HELENA-MT-01 - St. Peter's Health, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6015  AS4043         ORG+TRN Originate:      25344 /17.37  Transit:        256 /24.00 MIC-ASN - Montana Internet Corporation, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
31059 AS4043        MIC-ASN - Montana Internet Corporation, US         4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  199.5.172.0/24       4608 7575 4043         
  205.207.148.0/23     4777 2497 6461 4043    
  206.127.64.0/18      4608 7575 4043         
  209.161.128.0/19     4608 7575 4043         

Whois Entry

whois: 402603

IANA has recorded AS4043 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS4043\n             
             #
             # 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:       4043
             ASName:         MIC-ASN
             ASHandle:       AS4043
             RegDate:        1994-11-17
             Updated:        2023-12-29
             Ref:            https://rdap.arin.net/registry/autnum/4043
             
             
             OrgName:        Montana Internet Corporation
             OrgId:          MIC-Z
             Address:        1424 National Ave
             City:           Helena
             StateProv:      MT
             PostalCode:     59601
             Country:        US
             RegDate:        2023-12-19
             Updated:        2025-08-22
             Ref:            https://rdap.arin.net/registry/entity/MIC-Z
             
             
             OrgTechHandle: JOSHU24-ARIN
             OrgTechName:   Romandia, Joshua A
             OrgTechPhone:  +1-406-443-3347 
             OrgTechEmail:  josh@mic.mt.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/JOSHU24-ARIN
             
             OrgTechHandle: FWC-ARIN
             OrgTechName:   Christian, Forrest 
             OrgTechPhone:  +1-406-449-3345 
             OrgTechEmail:  forrestc@imach.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/FWC-ARIN
             
             OrgNOCHandle: NANC-ARIN
             OrgNOCName:   Network Abuse and NOC Contact
             OrgNOCPhone:  +1-406-449-3345 
             OrgNOCEmail:  support@mt.net
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NANC-ARIN
             
             OrgAbuseHandle: NANC-ARIN
             OrgAbuseName:   Network Abuse and NOC Contact
             OrgAbusePhone:  +1-406-449-3345 
             OrgAbuseEmail:  support@mt.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NANC-ARIN
             
             RTechHandle: FWC-ARIN
             RTechName:   Christian, Forrest 
             RTechPhone:  +1-406-449-3345 
             RTechEmail:  forrestc@imach.com
             RTechRef:    https://rdap.arin.net/registry/entity/FWC-ARIN
             
             RTechHandle: AU8-ARIN
             RTechName:   Utick, Andy 
             RTechPhone:  +1-406-443-3347 
             RTechEmail:  AUTICK@mt.net
             RTechRef:    https://rdap.arin.net/registry/entity/AU8-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.
             #