Report for 396041

Name

HFC-ASN - HollyFrontier 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.

396041 HFC-ASN - HollyFrontier Corporation, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS174           COGENT-174 - Cogent Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
57587 AS396041       ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  HFC-ASN - HollyFrontier 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       %
75198 AS396041      HFC-ASN - HollyFrontier Corporation, US            2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  38.146.101.0/24      4777 2516 174 396041   
  38.146.104.0/24      4777 2516 174 396041   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS396041   2 More Specifics   2 Total Advertisements   HFC-ASN - HollyFrontier Corporation, US
    38.146.101.0/24               38.0.0.0/8
    38.146.104.0/24               38.0.0.0/8

Whois Entry

whois: 402609

IANA has recorded AS396041 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS396041\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:       396041
             ASName:         HFC-ASN
             ASHandle:       AS396041
             RegDate:        2017-02-21
             Updated:        2017-02-21
             Ref:            https://rdap.arin.net/registry/autnum/396041
             
             
             OrgName:        HollyFrontier Corporation
             OrgId:          HC-1154
             Address:        2323 Victory Ave
             Address:        Suite 1400
             City:           Dallas
             StateProv:      TX
             PostalCode:     75219
             Country:        US
             RegDate:        2017-02-08
             Updated:        2025-07-24
             Ref:            https://rdap.arin.net/registry/entity/HC-1154
             
             
             OrgAbuseHandle: MCCRE59-ARIN
             OrgAbuseName:   McCrea, Mike 
             OrgAbusePhone:  +1-360-770-4741 
             OrgAbuseEmail:  Michael.McCrea@HFSinclair.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MCCRE59-ARIN
             
             OrgRoutingHandle: POTTE157-ARIN
             OrgRoutingName:   Potter, James 
             OrgRoutingPhone:  +1-214-538-9364 
             OrgRoutingEmail:  James.Potter@HFSinclair.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/POTTE157-ARIN
             
             OrgAbuseHandle: DEARM27-ARIN
             OrgAbuseName:   DeArmon, Mike 
             OrgAbusePhone:  +1-214-954-3959 
             OrgAbuseEmail:  Mike.DeArmon@HFSinclair.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/DEARM27-ARIN
             
             OrgDNSHandle: HARTV2-ARIN
             OrgDNSName:   Hartvigsen, Cody 
             OrgDNSPhone:  +1-801-550-7709 
             OrgDNSEmail:  cody.hartvigsen@hollyfrontier.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/HARTV2-ARIN
             
             OrgNOCHandle: POTTE157-ARIN
             OrgNOCName:   Potter, James 
             OrgNOCPhone:  +1-214-538-9364 
             OrgNOCEmail:  James.Potter@HFSinclair.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/POTTE157-ARIN
             
             OrgTechHandle: MCCRE59-ARIN
             OrgTechName:   McCrea, Mike 
             OrgTechPhone:  +1-360-770-4741 
             OrgTechEmail:  Michael.McCrea@HFSinclair.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MCCRE59-ARIN
             
             OrgAbuseHandle: ERNST62-ARIN
             OrgAbuseName:   Ernst, Carl 
             OrgAbusePhone:  +1-214-793-8634 
             OrgAbuseEmail:  Carl.Ernst@HFSinclair.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ERNST62-ARIN
             
             OrgTechHandle: DEARM27-ARIN
             OrgTechName:   DeArmon, Mike 
             OrgTechPhone:  +1-214-954-3959 
             OrgTechEmail:  Mike.DeArmon@HFSinclair.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/DEARM27-ARIN
             
             OrgTechHandle: BLANK211-ARIN
             OrgTechName:   Blankenship, Stephen 
             OrgTechPhone:  +1-918-594-3314 
             OrgTechEmail:  Stephen.Blankenship@HFSinclair.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BLANK211-ARIN
             
             OrgRoutingHandle: ERNST62-ARIN
             OrgRoutingName:   Ernst, Carl 
             OrgRoutingPhone:  +1-214-793-8634 
             OrgRoutingEmail:  Carl.Ernst@HFSinclair.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/ERNST62-ARIN
             
             OrgRoutingHandle: MCCRE59-ARIN
             OrgRoutingName:   McCrea, Mike 
             OrgRoutingPhone:  +1-360-770-4741 
             OrgRoutingEmail:  Michael.McCrea@HFSinclair.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/MCCRE59-ARIN
             
             OrgTechHandle: ERNST62-ARIN
             OrgTechName:   Ernst, Carl 
             OrgTechPhone:  +1-214-793-8634 
             OrgTechEmail:  Carl.Ernst@HFSinclair.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ERNST62-ARIN
             
             OrgRoutingHandle: BLANK211-ARIN
             OrgRoutingName:   Blankenship, Stephen 
             OrgRoutingPhone:  +1-918-594-3314 
             OrgRoutingEmail:  Stephen.Blankenship@HFSinclair.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/BLANK211-ARIN
             
             OrgAbuseHandle: POTTE157-ARIN
             OrgAbuseName:   Potter, James 
             OrgAbusePhone:  +1-214-538-9364 
             OrgAbuseEmail:  James.Potter@HFSinclair.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/POTTE157-ARIN
             
             OrgNOCHandle: HARTV2-ARIN
             OrgNOCName:   Hartvigsen, Cody 
             OrgNOCPhone:  +1-801-550-7709 
             OrgNOCEmail:  cody.hartvigsen@hollyfrontier.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/HARTV2-ARIN
             
             OrgRoutingHandle: DEARM27-ARIN
             OrgRoutingName:   DeArmon, Mike 
             OrgRoutingPhone:  +1-214-954-3959 
             OrgRoutingEmail:  Mike.DeArmon@HFSinclair.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/DEARM27-ARIN
             
             OrgDNSHandle: POTTE157-ARIN
             OrgDNSName:   Potter, James 
             OrgDNSPhone:  +1-214-538-9364 
             OrgDNSEmail:  James.Potter@HFSinclair.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/POTTE157-ARIN
             
             OrgRoutingHandle: HARTV2-ARIN
             OrgRoutingName:   Hartvigsen, Cody 
             OrgRoutingPhone:  +1-801-550-7709 
             OrgRoutingEmail:  cody.hartvigsen@hollyfrontier.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/HARTV2-ARIN
             
             OrgTechHandle: POTTE157-ARIN
             OrgTechName:   Potter, James 
             OrgTechPhone:  +1-214-538-9364 
             OrgTechEmail:  James.Potter@HFSinclair.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/POTTE157-ARIN
             
             OrgAbuseHandle: HARTV2-ARIN
             OrgAbuseName:   Hartvigsen, Cody 
             OrgAbusePhone:  +1-801-550-7709 
             OrgAbuseEmail:  cody.hartvigsen@hollyfrontier.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/HARTV2-ARIN
             
             OrgNOCHandle: MCCRE59-ARIN
             OrgNOCName:   McCrea, Mike 
             OrgNOCPhone:  +1-360-770-4741 
             OrgNOCEmail:  Michael.McCrea@HFSinclair.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MCCRE59-ARIN
             
             OrgNOCHandle: BLANK211-ARIN
             OrgNOCName:   Blankenship, Stephen 
             OrgNOCPhone:  +1-918-594-3314 
             OrgNOCEmail:  Stephen.Blankenship@HFSinclair.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/BLANK211-ARIN
             
             OrgDNSHandle: MCCRE59-ARIN
             OrgDNSName:   McCrea, Mike 
             OrgDNSPhone:  +1-360-770-4741 
             OrgDNSEmail:  Michael.McCrea@HFSinclair.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/MCCRE59-ARIN
             
             OrgNOCHandle: DEARM27-ARIN
             OrgNOCName:   DeArmon, Mike 
             OrgNOCPhone:  +1-214-954-3959 
             OrgNOCEmail:  Mike.DeArmon@HFSinclair.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/DEARM27-ARIN
             
             OrgNOCHandle: HEATH159-ARIN
             OrgNOCName:   Heath, Brian 
             OrgNOCPhone:  +1-801-428-7830 
             OrgNOCEmail:  Brian.Heath@HFSinclair.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/HEATH159-ARIN
             
             OrgDNSHandle: ERNST62-ARIN
             OrgDNSName:   Ernst, Carl 
             OrgDNSPhone:  +1-214-793-8634 
             OrgDNSEmail:  Carl.Ernst@HFSinclair.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/ERNST62-ARIN
             
             OrgAbuseHandle: BLANK211-ARIN
             OrgAbuseName:   Blankenship, Stephen 
             OrgAbusePhone:  +1-918-594-3314 
             OrgAbuseEmail:  Stephen.Blankenship@HFSinclair.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BLANK211-ARIN
             
             OrgAbuseHandle: HEATH159-ARIN
             OrgAbuseName:   Heath, Brian 
             OrgAbusePhone:  +1-801-428-7830 
             OrgAbuseEmail:  Brian.Heath@HFSinclair.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/HEATH159-ARIN
             
             OrgDNSHandle: BLANK211-ARIN
             OrgDNSName:   Blankenship, Stephen 
             OrgDNSPhone:  +1-918-594-3314 
             OrgDNSEmail:  Stephen.Blankenship@HFSinclair.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/BLANK211-ARIN
             
             OrgNOCHandle: ERNST62-ARIN
             OrgNOCName:   Ernst, Carl 
             OrgNOCPhone:  +1-214-793-8634 
             OrgNOCEmail:  Carl.Ernst@HFSinclair.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ERNST62-ARIN
             
             OrgDNSHandle: DEARM27-ARIN
             OrgDNSName:   DeArmon, Mike 
             OrgDNSPhone:  +1-214-954-3959 
             OrgDNSEmail:  Mike.DeArmon@HFSinclair.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/DEARM27-ARIN
             
             OrgTechHandle: HARTV2-ARIN
             OrgTechName:   Hartvigsen, Cody 
             OrgTechPhone:  +1-801-550-7709 
             OrgTechEmail:  cody.hartvigsen@hollyfrontier.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/HARTV2-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.
             #