Report for 40401

Name

BACKBLAZE - Backblaze 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.

40401 BACKBLAZE - Backblaze Inc, US

  Adjacency:     5  Upstream:     4  Downstream:     1
  Upstream Adjacent AS list
    AS4637          ASN-TELSTRA-GLOBAL Telstra Global, HK
    AS1299          TWELVE99 Arelion, fka Telia Carrier, SE
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS3257          GTT-BACKBONE GTT, US
  Downstream Adjacent AS list
    AS396865        BACKBLAZE - Backblaze Inc, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11197 AS40401        ORG+TRN Originate:       8704 /18.91  Transit:        256 /24.00 BACKBLAZE - Backblaze 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       %
 5478 AS40401       BACKBLAZE - Backblaze Inc, US                     23     13      4     14      9  39.13%


  Prefix               AS Path                              Aggregation Suggestion
  45.11.36.0/22        4777 2497 1299 40401 + Announce - aggregate of 45.11.36.0/23 (4777 2497 1299 40401) and 45.11.38.0/23 (4777 2497 1299 40401)
  45.11.36.0/24        4777 2497 1299 40401 - Withdrawn - aggregated with 45.11.37.0/24 (4777 2497 1299 40401)
  45.11.37.0/24        4777 2497 1299 40401 - Withdrawn - aggregated with 45.11.36.0/24 (4777 2497 1299 40401)
  45.11.38.0/24        4777 2497 1299 40401 - Withdrawn - aggregated with 45.11.39.0/24 (4777 2497 1299 40401)
  45.11.39.0/24        4777 2497 1299 40401 - Withdrawn - aggregated with 45.11.38.0/24 (4777 2497 1299 40401)
  104.153.232.0/22     4608 1221 4637 40401 + Announce - aggregate of 104.153.232.0/23 (4608 1221 4637 40401) and 104.153.234.0/23 (4608 1221 4637 40401)
  104.153.232.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 104.153.234.0/23 (4608 1221 4637 40401)
  104.153.234.0/24     4608 1221 4637 40401 - Withdrawn - aggregated with 104.153.235.0/24 (4608 1221 4637 40401)
  104.153.235.0/24     4608 1221 4637 40401 - Withdrawn - aggregated with 104.153.234.0/24 (4608 1221 4637 40401)
  104.153.236.0/24     4777 2516 3257 40401   
  104.153.237.0/24     4608 1221 4637 40401   
  104.153.238.0/24     4777 2497 3257 40401   
  149.137.128.0/21     4608 1221 4637 40401 + Announce - aggregate of 149.137.128.0/22 (4608 1221 4637 40401) and 149.137.132.0/22 (4608 1221 4637 40401)
  149.137.128.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 149.137.130.0/23 (4608 1221 4637 40401)
  149.137.130.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 149.137.128.0/23 (4608 1221 4637 40401)
  149.137.132.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 149.137.134.0/23 (4608 1221 4637 40401)
  149.137.134.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 149.137.132.0/23 (4608 1221 4637 40401)
  149.137.136.0/24     4777 2516 3257 40401   
  149.137.137.0/24     4777 2497 1299 40401   
  149.137.138.0/23     4608 1221 4637 40401   
  149.137.140.0/24     4777 2516 3257 40401   
  149.137.141.0/24     4777 2497 1299 40401   
  149.137.142.0/24     4608 1221 4637 40401   
  206.190.208.0/22     4777 2497 3356 40401   
  206.190.212.0/22     4608 1221 4637 40401 + Announce - aggregate of 206.190.212.0/23 (4608 1221 4637 40401) and 206.190.214.0/23 (4608 1221 4637 40401)
  206.190.212.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 206.190.214.0/23 (4608 1221 4637 40401)
  206.190.214.0/23     4608 1221 4637 40401 - Withdrawn - aggregated with 206.190.212.0/23 (4608 1221 4637 40401)

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

AS40401   23 More Specifics   23 Total Advertisements   BACKBLAZE - Backblaze Inc, US
    45.11.36.0/24                 45.11.36.0/22
    45.11.37.0/24                 45.11.36.0/22
    45.11.38.0/24                 45.11.36.0/22
    45.11.39.0/24                 45.11.36.0/22
    104.153.232.0/23              104.153.232.0/21
    104.153.234.0/24              104.153.232.0/21
    104.153.235.0/24              104.153.232.0/21
    104.153.236.0/24              104.153.232.0/21
    104.153.237.0/24              104.153.232.0/21
    104.153.238.0/24              104.153.232.0/21
    149.137.128.0/23              149.137.128.0/20
    149.137.130.0/23              149.137.128.0/20
    149.137.132.0/23              149.137.128.0/20
    149.137.134.0/23              149.137.128.0/20
    149.137.136.0/24              149.137.128.0/20
    149.137.137.0/24              149.137.128.0/20
    149.137.138.0/23              149.137.128.0/20
    149.137.140.0/24              149.137.128.0/20
    149.137.141.0/24              149.137.128.0/20
    149.137.142.0/24              149.137.128.0/20
    206.190.208.0/22              206.190.208.0/21
    206.190.212.0/23              206.190.208.0/21
    206.190.214.0/23              206.190.208.0/21

Whois Entry

whois: 402332

IANA has recorded AS40401 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS40401\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:       40401
             ASName:         BACKBLAZE
             ASHandle:       AS40401
             RegDate:        2020-08-20
             Updated:        2020-08-20
             Comment:        www.backblaze.com
             Ref:            https://rdap.arin.net/registry/autnum/40401
             
             
             OrgName:        Backblaze Inc
             OrgId:          BACKB-7
             Address:        2261 Market Street STE 81006
             City:           San Francisco
             StateProv:      CA
             PostalCode:     94114
             Country:        US
             RegDate:        2016-02-22
             Updated:        2026-02-04
             Ref:            https://rdap.arin.net/registry/entity/BACKB-7
             
             
             OrgTechHandle: BACKB1-ARIN
             OrgTechName:   Backblaze whoisinfo
             OrgTechPhone:  +1-650-352-3738 
             OrgTechEmail:  whoisinfo@backblaze.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BACKB1-ARIN
             
             OrgAbuseHandle: ABUSE5514-ARIN
             OrgAbuseName:   Abuse Contact
             OrgAbusePhone:  +1-650-352-3738 
             OrgAbuseEmail:  abuse@backblaze.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5514-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.
             #