Report for 20105

Name

URICHMOND - University of Richmond, 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.

20105 URICHMOND - University of Richmond, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS7795          LUMOS - LUMOS Networks, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2242  AS20105        ORIGIN  Originate:     106496 /15.30  Transit:          0 /0.00  URICHMOND - University of Richmond, 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       %
 9713 AS20105       URICHMOND - University of Richmond, US             7      4      0      3      4  57.14%


  Prefix               AS Path                              Aggregation Suggestion
  141.166.0.0/16       4777 2497 3356 20105   
  141.166.32.0/19      4777 2497 3356 20105 - Withdrawn - matching aggregate 141.166.0.0/16 4777 2497 3356 20105
  141.166.96.0/19      4777 2497 3356 20105 - Withdrawn - matching aggregate 141.166.0.0/16 4777 2497 3356 20105
  141.166.128.0/20     4777 2516 3257 7795 20105   
  141.166.144.0/20     4777 2497 3356 20105 - Withdrawn - matching aggregate 141.166.0.0/16 4777 2497 3356 20105
  141.166.160.0/19     4777 2497 3356 20105 - Withdrawn - matching aggregate 141.166.0.0/16 4777 2497 3356 20105
  141.166.224.0/19     4777 2516 3257 7795 20105   

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

AS20105   6 More Specifics   7 Total Advertisements   URICHMOND - University of Richmond, US
    141.166.32.0/19               141.166.0.0/16
    141.166.96.0/19               141.166.0.0/16
    141.166.128.0/20              141.166.0.0/16
    141.166.144.0/20              141.166.0.0/16
    141.166.160.0/19              141.166.0.0/16
    141.166.224.0/19              141.166.0.0/16

Whois Entry

whois: 402591

IANA has recorded AS20105 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20105\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:       20105
             ASName:         URICHMOND
             ASHandle:       AS20105
             RegDate:        2001-03-23
             Updated:        2014-11-17
             Ref:            https://rdap.arin.net/registry/autnum/20105
             
             
             OrgName:        University of Richmond
             OrgId:          UNIVER-504
             Address:        410 Westhampton Way
             City:           Richmond
             StateProv:      VA
             PostalCode:     23173
             Country:        US
             RegDate:        2001-03-23
             Updated:        2021-03-12
             Ref:            https://rdap.arin.net/registry/entity/UNIVER-504
             
             
             OrgAbuseHandle: HOSTM256-ARIN
             OrgAbuseName:   hostmaster
             OrgAbusePhone:  +1-804-289-8000 
             OrgAbuseEmail:  hostmaster@richmond.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM256-ARIN
             
             OrgTechHandle: HOSTM256-ARIN
             OrgTechName:   hostmaster
             OrgTechPhone:  +1-804-289-8000 
             OrgTechEmail:  hostmaster@richmond.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM256-ARIN
             
             RTechHandle: HOSTM256-ARIN
             RTechName:   hostmaster
             RTechPhone:  +1-804-289-8000 
             RTechEmail:  hostmaster@richmond.edu
             RTechRef:    https://rdap.arin.net/registry/entity/HOSTM256-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.
             #