Report for 2

Name

UDEL-DCN - University of Delaware, 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.

2 UDEL-DCN - University of Delaware, US

  Adjacency:     6  Upstream:     6  Downstream:     0
  Upstream Adjacent AS list
    AS41837         UTC-AS South Telephony Company LTD, RU
    AS203794        GALS-TELECOM-AS -- Upsreams --, RU
    AS266893        MULTIMEDIA NETWORK, S.A. DE C.V., SV
    AS45609         BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
    AS34            UDELNET - University of Delaware, US
    AS266674        Cooperativa Electrica de Las Perdices Ltda., AR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2733  AS2            ORIGIN  Originate:      79104 /15.73  Transit:          0 /0.00  UDEL-DCN - University of Delaware, 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       %
15130 AS2           UDEL-DCN - University of Delaware, US              9      4      2      7      2  22.22%


  Prefix               AS Path                              Aggregation Suggestion
  45.161.25.0/24       4777 2497 5511 52468 266893 2   
  45.228.74.0/23       4777 2516 6762 7303 7303 7303 7303 266674 2 + Announce - aggregate of 45.228.74.0/24 (4777 2516 6762 7303 7303 7303 7303 266674 2) and 45.228.75.0/24 (4777 2516 6762 7303 7303 7303 7303 266674 2)
  45.228.74.0/24       4777 2516 6762 7303 7303 7303 7303 266674 2 - Withdrawn - aggregated with 45.228.75.0/24 (4777 2516 6762 7303 7303 7303 7303 266674 2)
  45.228.75.0/24       4777 2516 6762 7303 7303 7303 7303 266674 2 - Withdrawn - aggregated with 45.228.74.0/24 (4777 2516 6762 7303 7303 7303 7303 266674 2)
  91.143.144.0/20      4777 2497 12389 41837 41837 2   
  128.4.0.0/16         4608 7575 11537 3754 34 34 2   
  171.79.128.0/19      4777 2497 9498 45609 2 + Announce - aggregate of 171.79.128.0/20 (4777 2497 9498 45609 2) and 171.79.144.0/20 (4777 2497 9498 45609 2)
  171.79.128.0/20      4777 2497 9498 45609 2 - Withdrawn - aggregated with 171.79.144.0/20 (4777 2497 9498 45609 2)
  171.79.144.0/20      4777 2497 9498 45609 2 - Withdrawn - aggregated with 171.79.128.0/20 (4777 2497 9498 45609 2)
  194.190.53.0/24      4777 2497 3216 203794 2   
  194.190.54.0/24      4777 2497 3216 203794 2   

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

AS2   7 More Specifics   9 Total Advertisements   UDEL-DCN - University of Delaware, US
    45.161.25.0/24                45.161.24.0/22
    45.228.74.0/24                45.228.72.0/22
    45.228.75.0/24                45.228.72.0/22
    171.79.128.0/20               171.76.0.0/14
    171.79.144.0/20               171.76.0.0/14
    194.190.53.0/24               194.190.0.0/18
    194.190.54.0/24               194.190.0.0/18
    171.79.128.0/19               171.76.0.0/14

Prefixes added and withdrawn by this origin AS in the past 7 days.

    - 171.79.128.0/19             Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS2 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS2\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:       2
             ASName:         UDEL-DCN
             ASHandle:       AS2
             RegDate:        1991-01-10
             Updated:        2023-11-08
             Ref:            https://rdap.arin.net/registry/autnum/2
             
             
             OrgName:        University of Delaware
             OrgId:          UNIVER-19-Z
             Address:        Information Technologies
             Address:        192 South Chapel Street
             City:           Newark
             StateProv:      DE
             PostalCode:     19716
             Country:        US
             RegDate:        2008-03-18
             Updated:        2024-08-15
             Ref:            https://rdap.arin.net/registry/entity/UNIVER-19-Z
             
             
             OrgNOCHandle: UDELN-ARIN
             OrgNOCName:   UDel NOC
             OrgNOCPhone:  +1-302-831-6000 
             OrgNOCEmail:  noc@udel.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/UDELN-ARIN
             
             OrgTechHandle: NSS13-ARIN
             OrgTechName:   Network and Systems Services
             OrgTechPhone:  +1-302-831-6000 
             OrgTechEmail:  noc@udel.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/NSS13-ARIN
             
             OrgDNSHandle: UDELN-ARIN
             OrgDNSName:   UDel NOC
             OrgDNSPhone:  +1-302-831-6000 
             OrgDNSEmail:  noc@udel.edu
             OrgDNSRef:    https://rdap.arin.net/registry/entity/UDELN-ARIN
             
             OrgRoutingHandle: NSS13-ARIN
             OrgRoutingName:   Network and Systems Services
             OrgRoutingPhone:  +1-302-831-6000 
             OrgRoutingEmail:  noc@udel.edu
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/NSS13-ARIN
             
             OrgAbuseHandle: UDELN-ARIN
             OrgAbuseName:   UDel NOC
             OrgAbusePhone:  +1-302-831-6000 
             OrgAbuseEmail:  noc@udel.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/UDELN-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.
             #