Report for 23528

Name

SPARKPOST - Bird.com Inc., 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.

23528 SPARKPOST - Bird.com Inc., US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS3257          GTT-BACKBONE GTT, US
    AS6939          HURRICANE - Hurricane Electric LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5164  AS23528        ORIGIN  Originate:      34304 /16.93  Transit:          0 /0.00  SPARKPOST - Bird.com Inc., 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       %
 2741 AS23528       SPARKPOST - Bird.com Inc., US                     78     30     10     58     20  25.64%


  Prefix               AS Path                              Aggregation Suggestion
  91.206.59.0/24       4777 2497 3257 23528   
  103.11.244.0/24      4777 6939 23528        
  137.22.224.0/22      4777 6939 23528      + Announce - aggregate of 137.22.224.0/23 (4777 6939 23528) and 137.22.226.0/23 (4777 6939 23528)
  137.22.224.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.225.0/24 (4777 6939 23528)
  137.22.225.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.224.0/24 (4777 6939 23528)
  137.22.226.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.227.0/24 (4777 6939 23528)
  137.22.227.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.226.0/24 (4777 6939 23528)
  137.22.228.0/24      4777 6939 23528        
  137.22.229.0/24      4777 2497 3257 23528   
  137.22.230.0/23      4777 2497 3257 23528 + Announce - aggregate of 137.22.230.0/24 (4777 2497 3257 23528) and 137.22.231.0/24 (4777 2497 3257 23528)
  137.22.230.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 137.22.231.0/24 (4777 2497 3257 23528)
  137.22.231.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 137.22.230.0/24 (4777 2497 3257 23528)
  137.22.232.0/21      4777 6939 23528      + Announce - aggregate of 137.22.232.0/22 (4777 6939 23528) and 137.22.236.0/22 (4777 6939 23528)
  137.22.232.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.233.0/24 (4777 6939 23528)
  137.22.233.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.232.0/24 (4777 6939 23528)
  137.22.234.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.235.0/24 (4777 6939 23528)
  137.22.235.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.234.0/24 (4777 6939 23528)
  137.22.236.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.237.0/24 (4777 6939 23528)
  137.22.237.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.236.0/24 (4777 6939 23528)
  137.22.238.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.239.0/24 (4777 6939 23528)
  137.22.239.0/24      4777 6939 23528      - Withdrawn - aggregated with 137.22.238.0/24 (4777 6939 23528)
  137.22.240.0/22      4777 2497 3257 23528 + Announce - aggregate of 137.22.240.0/23 (4777 2497 3257 23528) and 137.22.242.0/23 (4777 2497 3257 23528)
  137.22.240.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 137.22.241.0/24 (4777 2497 3257 23528)
  137.22.241.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 137.22.240.0/24 (4777 2497 3257 23528)
  137.22.242.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 137.22.243.0/24 (4777 2497 3257 23528)
  137.22.243.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 137.22.242.0/24 (4777 2497 3257 23528)
  137.22.244.0/24      4777 2497 3257 23528   
  137.22.247.0/24      4777 6939 23528        
  137.22.248.0/24      4777 6939 23528        
  147.160.155.0/24     4777 6939 23528        
  147.253.208.0/20     4777 6939 23528        
  147.253.220.0/23     4777 2497 3257 23528   
  147.253.222.0/24     4777 2497 3257 23528   
  156.70.2.0/23        4777 6939 23528        
  156.70.4.0/23        4777 6939 23528        
  156.70.12.0/23       4777 6939 23528        
  156.70.16.0/23       4777 2497 3257 23528   
  156.70.22.0/23       4777 6939 23528        
  156.70.24.0/23       4777 6939 23528        
  156.70.34.0/23       4777 2497 3257 23528   
  156.70.46.0/23       4777 6939 23528        
  156.70.52.0/23       4777 6939 23528        
  156.70.62.0/23       4777 6939 23528        
  156.70.72.0/23       4777 6939 23528      + Announce - aggregate of 156.70.72.0/24 (4777 6939 23528) and 156.70.73.0/24 (4777 6939 23528)
  156.70.72.0/24       4777 6939 23528      - Withdrawn - aggregated with 156.70.73.0/24 (4777 6939 23528)
  156.70.73.0/24       4777 6939 23528      - Withdrawn - aggregated with 156.70.72.0/24 (4777 6939 23528)
  156.70.76.0/23       4777 6939 23528        
  156.70.88.0/23       4777 2497 3257 23528   
  156.70.116.0/23      4777 6939 23528        
  156.70.120.0/23      4777 6939 23528        
  156.70.150.0/23      4777 6939 23528        
  161.129.25.0/24      4777 6939 23528        
  161.129.27.0/24      4777 6939 23528        
  161.199.112.0/24     4777 6939 23528        
  162.247.166.0/24     4777 6939 23528        
  162.247.167.0/24     4777 2497 3257 23528   
  168.203.32.0/22      4777 6939 23528      + Announce - aggregate of 168.203.32.0/23 (4777 6939 23528) and 168.203.34.0/23 (4777 6939 23528)
  168.203.32.0/23      4777 6939 23528      - Withdrawn - aggregated with 168.203.34.0/23 (4777 6939 23528)
  168.203.34.0/23      4777 6939 23528      - Withdrawn - aggregated with 168.203.32.0/23 (4777 6939 23528)
  168.203.36.0/23      4777 6939 23528        
  168.203.42.0/23      4777 2497 3257 23528   
  168.203.46.0/23      4777 2497 3257 23528   
  168.203.48.0/22      4777 6939 23528        
  192.133.16.0/24      4777 6939 23528        
  192.158.253.0/24     4777 6939 23528        
  192.174.80.0/20      4777 6939 23528        
  192.174.92.0/24      4777 2497 3257 23528   
  192.174.94.0/23      4777 2497 3257 23528 + Announce - aggregate of 192.174.94.0/24 (4777 2497 3257 23528) and 192.174.95.0/24 (4777 2497 3257 23528)
  192.174.94.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 192.174.95.0/24 (4777 2497 3257 23528)
  192.174.95.0/24      4777 2497 3257 23528 - Withdrawn - aggregated with 192.174.94.0/24 (4777 2497 3257 23528)
  194.28.204.0/23      4777 2497 3257 23528   
  199.15.224.0/23      4777 6939 23528      + Announce - aggregate of 199.15.224.0/24 (4777 6939 23528) and 199.15.225.0/24 (4777 6939 23528)
  199.15.224.0/24      4777 6939 23528      - Withdrawn - aggregated with 199.15.225.0/24 (4777 6939 23528)
  199.15.225.0/24      4777 6939 23528      - Withdrawn - aggregated with 199.15.224.0/24 (4777 6939 23528)
  199.15.226.0/23      4777 2497 3257 23528   
  216.24.61.0/24       4777 6939 23528        
  223.165.112.0/24     4777 2497 3257 23528   
  223.165.114.0/24     4777 2497 3257 23528   
  223.165.116.0/23     4777 6939 23528      + Announce - aggregate of 223.165.116.0/24 (4777 6939 23528) and 223.165.117.0/24 (4777 6939 23528)
  223.165.116.0/24     4777 6939 23528      - Withdrawn - aggregated with 223.165.117.0/24 (4777 6939 23528)
  223.165.117.0/24     4777 6939 23528      - Withdrawn - aggregated with 223.165.116.0/24 (4777 6939 23528)
  223.165.122.0/23     4777 6939 23528      + Announce - aggregate of 223.165.122.0/24 (4777 6939 23528) and 223.165.123.0/24 (4777 6939 23528)
  223.165.122.0/24     4777 6939 23528      - Withdrawn - aggregated with 223.165.123.0/24 (4777 6939 23528)
  223.165.123.0/24     4777 6939 23528      - Withdrawn - aggregated with 223.165.122.0/24 (4777 6939 23528)
  223.165.124.0/24     4777 6939 23528        
  223.165.125.0/24     4777 2497 3257 23528   
  223.165.126.0/24     4777 6939 23528        
  223.165.127.0/24     4777 2497 3257 23528   

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

AS23528   53 More Specifics   78 Total Advertisements   SPARKPOST - Bird.com Inc., US
    137.22.224.0/24               137.22.224.0/19
    137.22.225.0/24               137.22.224.0/19
    137.22.226.0/24               137.22.224.0/19
    137.22.227.0/24               137.22.224.0/19
    137.22.228.0/24               137.22.224.0/19
    137.22.229.0/24               137.22.224.0/19
    137.22.230.0/24               137.22.224.0/19
    137.22.231.0/24               137.22.224.0/19
    137.22.232.0/24               137.22.224.0/19
    137.22.233.0/24               137.22.224.0/19
    137.22.234.0/24               137.22.224.0/19
    137.22.235.0/24               137.22.224.0/19
    137.22.236.0/24               137.22.224.0/19
    137.22.237.0/24               137.22.224.0/19
    137.22.238.0/24               137.22.224.0/19
    137.22.239.0/24               137.22.224.0/19
    137.22.240.0/24               137.22.224.0/19
    137.22.241.0/24               137.22.224.0/19
    137.22.242.0/24               137.22.224.0/19
    137.22.243.0/24               137.22.224.0/19
    137.22.244.0/24               137.22.224.0/19
    137.22.247.0/24               137.22.224.0/19
    137.22.248.0/24               137.22.224.0/19
    147.253.220.0/23              147.253.208.0/20
    147.253.222.0/24              147.253.208.0/20
    156.70.72.0/24                156.70.72.0/23
    156.70.73.0/24                156.70.72.0/23
    161.129.25.0/24               161.129.24.0/22
    161.129.27.0/24               161.129.24.0/22
    162.247.166.0/24              162.247.160.0/21
    162.247.167.0/24              162.247.160.0/21
    168.203.32.0/23               168.203.32.0/19
    168.203.34.0/23               168.203.32.0/19
    168.203.36.0/23               168.203.32.0/19
    168.203.42.0/23               168.203.32.0/19
    168.203.46.0/23               168.203.32.0/19
    168.203.48.0/22               168.203.32.0/19
    192.174.92.0/24               192.174.80.0/20
    192.174.94.0/24               192.174.80.0/20
    192.174.95.0/24               192.174.80.0/20
    199.15.224.0/24               199.15.224.0/22
    199.15.225.0/24               199.15.224.0/22
    199.15.226.0/23               199.15.224.0/22
    223.165.112.0/24              223.165.112.0/20
    223.165.114.0/24              223.165.112.0/20
    223.165.116.0/24              223.165.112.0/20
    223.165.117.0/24              223.165.112.0/20
    223.165.122.0/24              223.165.112.0/20
    223.165.123.0/24              223.165.112.0/20
    223.165.124.0/24              223.165.112.0/20
    223.165.125.0/24              223.165.112.0/20
    223.165.126.0/24              223.165.112.0/20
    223.165.127.0/24              223.165.112.0/20

Whois Entry

whois: 402332

IANA has recorded AS23528 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23528\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:       23528
             ASName:         SPARKPOST
             ASHandle:       AS23528
             RegDate:        2018-04-16
             Updated:        2018-04-16
             Ref:            https://rdap.arin.net/registry/autnum/23528
             
             
             OrgName:        Bird.com Inc.
             OrgId:          MS-820
             Address:        4701 Sangamore Road suite 100N-139
             City:           Bethesda
             StateProv:      MD
             PostalCode:     20816
             Country:        US
             RegDate:        2015-12-09
             Updated:        2025-08-14
             Ref:            https://rdap.arin.net/registry/entity/MS-820
             
             
             OrgTechHandle: PILLA10-ARIN
             OrgTechName:   Pillai, Balasubramania 
             OrgTechPhone:  +1-410-953-9519 
             OrgTechEmail:  balu.pillai@bird.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/PILLA10-ARIN
             
             OrgDNSHandle: PARMA32-ARIN
             OrgDNSName:   Parman, Tyler 
             OrgDNSPhone:  +1-415-578-5222 
             OrgDNSEmail:  tyler.parman@bird.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/PARMA32-ARIN
             
             OrgNOCHandle: SEA25-ARIN
             OrgNOCName:   SparkPost Elite Abuse
             OrgNOCPhone:  +1-410-872-4910 
             OrgNOCEmail:  abuse@sparkpostelite.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/SEA25-ARIN
             
             OrgRoutingHandle: PARMA32-ARIN
             OrgRoutingName:   Parman, Tyler 
             OrgRoutingPhone:  +1-415-578-5222 
             OrgRoutingEmail:  tyler.parman@bird.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/PARMA32-ARIN
             
             OrgTechHandle: MATTR5-ARIN
             OrgTechName:   Mattrat, Felix 
             OrgTechPhone:  +3000000000 
             OrgTechEmail:  felix@bird.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MATTR5-ARIN
             
             OrgAbuseHandle: SEA25-ARIN
             OrgAbuseName:   SparkPost Elite Abuse
             OrgAbusePhone:  +1-410-872-4910 
             OrgAbuseEmail:  abuse@sparkpostelite.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/SEA25-ARIN
             
             OrgTechHandle: PARMA32-ARIN
             OrgTechName:   Parman, Tyler 
             OrgTechPhone:  +1-415-578-5222 
             OrgTechEmail:  tyler.parman@bird.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/PARMA32-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.
             #