Report for 16477

Name

NCL-203-16477 - Nielsen Consumer LLC, 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.

16477 NCL-203-16477 - Nielsen Consumer LLC, US

  Adjacency:    11  Upstream:    11  Downstream:     0
  Upstream Adjacent AS list
    AS6660          CWASIA, GB
    AS2856          BT-UK-AS BTnet UK Regional network, GB
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS9930          TTNET-MY TIME dotCom Berhad No. 14, Jalan Majistret U126 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia, MY
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS139883        SPTEL-AS-AP SPTEL PTE. LTD., SG
    AS9924          TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
    AS9457          DREAMX-AS DREAMLINE CO., KR
    AS4755          TATACOMM-AS TATA Communications formerly VSNL is Leading ISP, IN
    AS8220          COLT COLT Technology Services Group Limited, GB
    AS9304          HUTCHISON-AS-AP HGC Global Communications Limited, HK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11343 AS16477        ORIGIN  Originate:       8448 /18.96  Transit:          0 /0.00  NCL-203-16477 - Nielsen Consumer LLC, 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       %
 7209 AS16477       NCL-203-16477 - Nielsen Consumer LLC, US          21     10      4     15      6  28.57%


  Prefix               AS Path                              Aggregation Suggestion
  138.108.3.0/24       4777 2516 8220 16477   
  138.108.32.0/23      4777 2497 3356 16477 + Announce - aggregate of 138.108.32.0/24 (4777 2497 3356 16477) and 138.108.33.0/24 (4777 2497 3356 16477)
  138.108.32.0/24      4777 2497 3356 16477 - Withdrawn - aggregated with 138.108.33.0/24 (4777 2497 3356 16477)
  138.108.33.0/24      4777 2497 3356 16477 - Withdrawn - aggregated with 138.108.32.0/24 (4777 2497 3356 16477)
  138.108.36.0/24      4777 2516 3356 16477   
  138.108.80.0/23      4777 2497 3356 16477 + Announce - aggregate of 138.108.80.0/24 (4777 2497 3356 16477) and 138.108.81.0/24 (4777 2497 3356 16477)
  138.108.80.0/24      4777 2497 3356 16477 - Withdrawn - aggregated with 138.108.81.0/24 (4777 2497 3356 16477)
  138.108.81.0/24      4777 2497 3356 16477 - Withdrawn - aggregated with 138.108.80.0/24 (4777 2497 3356 16477)
  138.108.82.0/24      4777 2497 3356 16477   
  138.108.96.0/21      4777 2516 8220 16477   
  138.108.104.0/22     4777 2516 8220 16477 + Announce - aggregate of 138.108.104.0/23 (4777 2516 8220 16477) and 138.108.106.0/23 (4777 2516 8220 16477)
  138.108.104.0/23     4777 2516 8220 16477 - Withdrawn - aggregated with 138.108.106.0/23 (4777 2516 8220 16477)
  138.108.106.0/23     4777 2516 8220 16477 - Withdrawn - aggregated with 138.108.104.0/23 (4777 2516 8220 16477)
  138.108.115.0/24     4777 2497 7018 16477   
  138.108.136.0/24     4608 9930 16477        
  138.108.137.0/24     4608 24115 23856 139883 16477   
  138.108.140.0/22     4777 4713 2914 9304 16477   
  138.108.141.0/24     4777 4713 2914 9304 16477 - Withdrawn - matching aggregate 138.108.140.0/22 4777 4713 2914 9304 16477
  138.108.143.0/24     4777 4713 2914 9304 16477 - Withdrawn - matching aggregate 138.108.140.0/22 4777 4713 2914 9304 16477
  138.108.144.0/24     4777 2516 3491 9924 16477   
  138.108.154.0/23     4777 2516 6453 4755 16477 + Announce - aggregate of 138.108.154.0/24 (4777 2516 6453 4755 16477) and 138.108.155.0/24 (4777 2516 6453 4755 16477)
  138.108.154.0/24     4777 2516 6453 4755 16477 - Withdrawn - aggregated with 138.108.155.0/24 (4777 2516 6453 4755 16477)
  138.108.155.0/24     4777 2516 6453 4755 16477 - Withdrawn - aggregated with 138.108.154.0/24 (4777 2516 6453 4755 16477)
  138.108.157.0/24     4777 2516 6453 4755 16477   
  138.108.162.0/24     4777 2516 4637 9457 16477   

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

AS16477   21 More Specifics   21 Total Advertisements   NCL-203-16477 - Nielsen Consumer LLC, US
    138.108.3.0/24                138.108.0.0/16
    138.108.32.0/24               138.108.0.0/16
    138.108.33.0/24               138.108.0.0/16
    138.108.36.0/24               138.108.0.0/16
    138.108.80.0/24               138.108.0.0/16
    138.108.81.0/24               138.108.0.0/16
    138.108.82.0/24               138.108.0.0/16
    138.108.96.0/21               138.108.0.0/16
    138.108.104.0/23              138.108.0.0/16
    138.108.106.0/23              138.108.0.0/16
    138.108.115.0/24              138.108.0.0/16
    138.108.136.0/24              138.108.0.0/16
    138.108.137.0/24              138.108.0.0/16
    138.108.140.0/22              138.108.0.0/16
    138.108.141.0/24              138.108.0.0/16
    138.108.143.0/24              138.108.0.0/16
    138.108.144.0/24              138.108.0.0/16
    138.108.154.0/24              138.108.0.0/16
    138.108.155.0/24              138.108.0.0/16
    138.108.157.0/24              138.108.0.0/16
    138.108.162.0/24              138.108.0.0/16
    138.108.38.0/24               138.108.0.0/16

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

    - 138.108.38.0/24             Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS16477 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS16477\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:       16477
             ASName:         NCL-203-16477
             ASHandle:       AS16477
             RegDate:        2023-05-03
             Updated:        2023-05-03
             Ref:            https://rdap.arin.net/registry/autnum/16477
             
             
             OrgName:        Nielsen Consumer LLC
             OrgId:          NCL-203
             Address:        200 W Jackson Blvd
             City:           Chicago
             StateProv:      IL
             PostalCode:     60606
             Country:        US
             RegDate:        2022-01-04
             Updated:        2024-08-05
             Ref:            https://rdap.arin.net/registry/entity/NCL-203
             
             
             OrgAbuseHandle: WHITE2731-ARIN
             OrgAbuseName:   White, David 
             OrgAbusePhone:  +1-727-421-0847 
             OrgAbuseEmail:  david.white@nielseniq.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/WHITE2731-ARIN
             
             OrgRoutingHandle: WHITE2731-ARIN
             OrgRoutingName:   White, David 
             OrgRoutingPhone:  +1-727-421-0847 
             OrgRoutingEmail:  david.white@nielseniq.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/WHITE2731-ARIN
             
             OrgDNSHandle: WHITE2731-ARIN
             OrgDNSName:   White, David 
             OrgDNSPhone:  +1-727-421-0847 
             OrgDNSEmail:  david.white@nielseniq.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/WHITE2731-ARIN
             
             OrgTechHandle: BUNNE50-ARIN
             OrgTechName:   Bunnell, Scott 
             OrgTechPhone:  +1-847-466-4673 
             OrgTechEmail:  scott.bunnell@nielseniq.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BUNNE50-ARIN
             
             OrgNOCHandle: WHITE2731-ARIN
             OrgNOCName:   White, David 
             OrgNOCPhone:  +1-727-421-0847 
             OrgNOCEmail:  david.white@nielseniq.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/WHITE2731-ARIN
             
             OrgAbuseHandle: BUNNE50-ARIN
             OrgAbuseName:   Bunnell, Scott 
             OrgAbusePhone:  +1-847-466-4673 
             OrgAbuseEmail:  scott.bunnell@nielseniq.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BUNNE50-ARIN
             
             OrgTechHandle: FARAG13-ARIN
             OrgTechName:   Farag, John 
             OrgTechPhone:  +1-727-916-7610 
             OrgTechEmail:  john.farag@nielseniq.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/FARAG13-ARIN
             
             OrgTechHandle: WHITE2731-ARIN
             OrgTechName:   White, David 
             OrgTechPhone:  +1-727-421-0847 
             OrgTechEmail:  david.white@nielseniq.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/WHITE2731-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.
             #