Report for 19001

Name

YELPCORP - Yelp! 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.

19001 YELPCORP - Yelp! Inc., US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3257          GTT-BACKBONE GTT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
44498 AS19001        ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  YELPCORP - Yelp! 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       %
35381 AS19001       YELPCORP - Yelp! Inc., US                          3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  104.153.227.0/24     4777 2497 3257 19001 19001   
  185.98.173.0/24      4777 2497 3257 19001 19001   
  185.98.174.0/24      4777 2497 3257 19001 19001   

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

AS19001   3 More Specifics   3 Total Advertisements   YELPCORP - Yelp! Inc., US
    104.153.227.0/24              104.153.224.0/22
    185.98.173.0/24               185.98.172.0/22
    185.98.174.0/24               185.98.172.0/22

Whois Entry

whois: 402332

IANA has recorded AS19001 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19001\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:       19001
             ASName:         YELPCORP
             ASHandle:       AS19001
             RegDate:        2014-11-24
             Updated:        2014-11-24
             Ref:            https://rdap.arin.net/registry/autnum/19001
             
             
             OrgName:        Yelp! Inc.
             OrgId:          YELPI
             Address:        140 New Montgomery
             Address:        9th Floor
             City:           San Francisco
             StateProv:      CA
             PostalCode:     94105
             Country:        US
             RegDate:        2010-03-05
             Updated:        2014-08-20
             Comment:        http://www.yelp.com
             Ref:            https://rdap.arin.net/registry/entity/YELPI
             
             
             OrgTechHandle: NETWO6360-ARIN
             OrgTechName:   Network Operations
             OrgTechPhone:  +1-415-908-3801 
             OrgTechEmail:  neteng@yelp.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO6360-ARIN
             
             OrgNOCHandle: NETWO6360-ARIN
             OrgNOCName:   Network Operations
             OrgNOCPhone:  +1-415-908-3801 
             OrgNOCEmail:  neteng@yelp.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO6360-ARIN
             
             OrgAbuseHandle: NETWO6360-ARIN
             OrgAbuseName:   Network Operations
             OrgAbusePhone:  +1-415-908-3801 
             OrgAbuseEmail:  neteng@yelp.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO6360-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.
             #