Report for 2923

Name

AS-TIAA-NET - TIAA-CREF, 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.

2923 AS-TIAA-NET - TIAA-CREF, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS32787         PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4357  AS2923         ORIGIN  Originate:      49664 /16.40  Transit:          0 /0.00  AS-TIAA-NET - TIAA-CREF, 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       %
 3791 AS2923        AS-TIAA-NET - TIAA-CREF, US                       29     16      3     16     13  44.83%


  Prefix               AS Path                              Aggregation Suggestion
  103.175.178.0/24     4777 32787 2923        
  103.215.155.0/24     4777 32787 2923        
  143.165.0.0/18       4777 32787 2923      + Announce - aggregate of 143.165.0.0/19 (4777 32787 2923) and 143.165.32.0/19 (4777 32787 2923)
  143.165.0.0/19       4777 32787 2923      - Withdrawn - aggregated with 143.165.32.0/19 (4777 32787 2923)
  143.165.32.0/19      4777 32787 2923      - Withdrawn - aggregated with 143.165.0.0/19 (4777 32787 2923)
  143.165.32.0/20      4777 32787 2923      - Withdrawn - matching aggregate 143.165.32.0/19 4777 32787 2923
  143.165.41.0/24      4777 32787 2923      - Withdrawn - matching aggregate 143.165.32.0/19 4777 32787 2923
  143.165.80.0/22      4777 32787 2923        
  143.165.80.0/24      4777 32787 2923      - Withdrawn - matching aggregate 143.165.80.0/22 4777 32787 2923
  143.165.88.0/24      4777 2497 7018 2923    
  143.165.90.0/23      4777 32787 2923        
  143.165.128.0/19     4777 32787 2923        
  143.165.128.0/20     4777 32787 2923      - Withdrawn - matching aggregate 143.165.128.0/19 4777 32787 2923
  143.165.136.0/24     4777 32787 2923      - Withdrawn - matching aggregate 143.165.128.0/19 4777 32787 2923
  143.165.138.0/24     4777 32787 2923      - Withdrawn - matching aggregate 143.165.128.0/19 4777 32787 2923
  143.165.161.0/24     4777 32787 2923        
  143.165.187.0/24     4777 32787 2923        
  143.165.188.0/24     4777 2497 3356 2923    
  143.165.190.0/23     4777 32787 2923        
  143.165.208.0/22     4777 2497 3356 2923    
  143.165.208.0/22     4777 32787 2923      + Announce - aggregate of 143.165.208.0/23 (4777 32787 2923) and 143.165.210.0/23 (4777 32787 2923)
  143.165.208.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.209.0/24 (4777 32787 2923)
  143.165.209.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.208.0/24 (4777 32787 2923)
  143.165.210.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.211.0/24 (4777 32787 2923)
  143.165.211.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.210.0/24 (4777 32787 2923)
  143.165.216.0/22     4777 2497 3356 2923    
  143.165.216.0/22     4777 32787 2923      + Announce - aggregate of 143.165.216.0/23 (4777 32787 2923) and 143.165.218.0/23 (4777 32787 2923)
  143.165.216.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.217.0/24 (4777 32787 2923)
  143.165.217.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.216.0/24 (4777 32787 2923)
  143.165.218.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.219.0/24 (4777 32787 2923)
  143.165.219.0/24     4777 32787 2923      - Withdrawn - aggregated with 143.165.218.0/24 (4777 32787 2923)
  143.165.224.0/19     4777 32787 2923        

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

AS2923   27 More Specifics   29 Total Advertisements   AS-TIAA-NET - TIAA-CREF, US
    143.165.0.0/19                143.165.0.0/16
    143.165.32.0/19               143.165.0.0/16
    143.165.32.0/20               143.165.0.0/16
    143.165.41.0/24               143.165.0.0/16
    143.165.80.0/22               143.165.0.0/16
    143.165.80.0/24               143.165.0.0/16
    143.165.88.0/24               143.165.0.0/16
    143.165.90.0/23               143.165.0.0/16
    143.165.128.0/19              143.165.0.0/16
    143.165.128.0/20              143.165.0.0/16
    143.165.136.0/24              143.165.0.0/16
    143.165.138.0/24              143.165.0.0/16
    143.165.161.0/24              143.165.0.0/16
    143.165.187.0/24              143.165.0.0/16
    143.165.188.0/24              143.165.0.0/16
    143.165.190.0/23              143.165.0.0/16
    143.165.208.0/22              143.165.0.0/16
    143.165.208.0/24              143.165.0.0/16
    143.165.209.0/24              143.165.0.0/16
    143.165.210.0/24              143.165.0.0/16
    143.165.211.0/24              143.165.0.0/16
    143.165.216.0/22              143.165.0.0/16
    143.165.216.0/24              143.165.0.0/16
    143.165.217.0/24              143.165.0.0/16
    143.165.218.0/24              143.165.0.0/16
    143.165.219.0/24              143.165.0.0/16
    143.165.224.0/19              143.165.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS2923 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS2923\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:       2923
             ASName:         AS-TIAA-NET
             ASHandle:       AS2923
             RegDate:        1993-09-24
             Updated:        2015-11-09
             Ref:            https://rdap.arin.net/registry/autnum/2923
             
             
             OrgName:        TIAA-CREF
             OrgId:          TIAACR-1
             Address:        730 Third Ave.
             City:           New York
             StateProv:      NY
             PostalCode:     10017
             Country:        US
             RegDate:        1993-09-24
             Updated:        2014-05-28
             Ref:            https://rdap.arin.net/registry/entity/TIAACR-1
             
             
             OrgTechHandle: WANEN4-ARIN
             OrgTechName:   WAN Engineering
             OrgTechPhone:  +1-704-595-1000 
             OrgTechEmail:  DL_NetworkWAN@tiaa-cref.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/WANEN4-ARIN
             
             OrgAbuseHandle: WANEN4-ARIN
             OrgAbuseName:   WAN Engineering
             OrgAbusePhone:  +1-704-595-1000 
             OrgAbuseEmail:  DL_NetworkWAN@tiaa-cref.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/WANEN4-ARIN
             
             RTechHandle: WANEN4-ARIN
             RTechName:   WAN Engineering
             RTechPhone:  +1-704-595-1000 
             RTechEmail:  DL_NetworkWAN@tiaa-cref.org
             RTechRef:    https://rdap.arin.net/registry/entity/WANEN4-ARIN
             
             RNOCHandle: WANEN4-ARIN
             RNOCName:   WAN Engineering
             RNOCPhone:  +1-704-595-1000 
             RNOCEmail:  DL_NetworkWAN@tiaa-cref.org
             RNOCRef:    https://rdap.arin.net/registry/entity/WANEN4-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.
             #