172.191.255.255

  • No reverse DNS
  • Not on blocklists
Network
cloud
Held by
MICROSOFT-MAINT
Range
172.191.0.0 - 172.191.255.255
CIDR
172.191.0.0/16
Type
ASSIGNED PA
Country
US
Registered on
Last updated
Status
  • active
Report abuse to
abuse@microsoft.com
Checked

Reverse DNS

Names
None

Network

Announced by
AS8075 Microsoft Corporation
Route
172.160.0.0/11, carried by 3,260 of bgp.tools' BGP feeds
Kind
Content
Country
US
Tagged
Tor services, Server Hosting, Anycast, Internet Critical Infra, Tranco 10k Host, Validating RPKI ROV

Upstreams and peers

  • AS1299 Arelion (fka. Telia Carrier)277 paths
  • AS6939 Hurricane Electric LLC240 paths
  • AS4755 TATA Communications (formerly VSNL)226 paths
  • AS6762 Telecom Italia Sparkle (Seabone)192 paths
  • AS3356 Lumen (Level 3)184 paths
  • AS174 Cogent Communications, LLC127 paths
  • AS12956 Telxius (Telefonica Global)124 paths
  • AS6453 TATA Communications (America) Inc46 paths
  • AS9002 RETN Limited46 paths
  • AS34549 meerfarbig GmbH & Co. KG39 paths
  • AS25091 IP-Max SA32 paths
  • AS3491 PCCW Global (HK) Ltd.31 paths

And 106 more

Downstreams

  • AS8069 Microsoft Corporation806 paths
  • AS8068 Microsoft Corporation605 paths
  • AS8070 Microsoft Corporation278 paths
  • AS3598 Microsoft Corporation275 paths
  • AS5761 Microsoft Corporation272 paths
  • AS58593 Microsoft Azure China (Shanghai Blue Cloud)266 paths
  • AS62540 Drake Holdings LLC237 paths

From RIPEstat

Routes AS8075 announces

1,235 IPv4 prefixes covering 81,118,720 addresses, and 123 IPv6 prefixes

From bgp.tools

Location

Map © OpenStreetMap contributors
Location
Dulles, Virginia, United States
Accuracy
Within 50 km

Location from GeoLite2 data created by MaxMind

Blocklists

  • Spamhaus ZEN Not listed
  • SpamCop Not listed
  • Mailspike Not listed
  • PSBL Not listed

WHOIS

#
# 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.
#


NetRange:       172.160.0.0 - 172.191.255.255
CIDR:           172.160.0.0/11
NetName:        RIPE
NetHandle:      NET-172-160-0-0-1
Parent:         NET172 (NET-172-0-0-0-0)
NetType:        Early Registrations, Transferred to RIPE NCC
OriginAS:       
Organization:   RIPE Network Coordination Centre (RIPE)
RegDate:        2022-06-22
Updated:        2025-02-10
Comment:        These addresses have been further assigned to users in the RIPE NCC region. Please note that the organization and point of contact details listed below are those of the RIPE NCC not the current address holder. ** You can find user contact information for the current address holder in the RIPE database at http://www.ripe.net/whois.
Ref:            https://rdap.arin.net/registry/ip/172.160.0.0

ResourceLink:  https://apps.db.ripe.net/db-web-ui/query
ResourceLink:  whois.ripe.net


OrgName:        RIPE Network Coordination Centre
OrgId:          RIPE
Address:        P.O. Box 10096
City:           Amsterdam
StateProv:      
PostalCode:     1001EB
Country:        NL
RegDate:        
Updated:        2013-07-29
Ref:            https://rdap.arin.net/registry/entity/RIPE

ReferralServer:  whois.ripe.net
ResourceLink:  https://apps.db.ripe.net/db-web-ui/query

OrgTechHandle: RNO29-ARIN
OrgTechName:   RIPE NCC Operations
OrgTechPhone:  +31 20 535 4444 
OrgTechEmail:  hostmaster@ripe.net
OrgTechRef:    https://rdap.arin.net/registry/entity/RNO29-ARIN

OrgAbuseHandle: ABUSE3850-ARIN
OrgAbuseName:   Abuse Contact
OrgAbusePhone:  +31205354444 
OrgAbuseEmail:  abuse@ripe.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3850-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.
#

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '172.191.0.0 - 172.191.255.255'

% Abuse contact for '172.191.0.0 - 172.191.255.255' is 'abuse@microsoft.com'

inetnum:        172.191.0.0 - 172.191.255.255
netname:        cloud
country:        US
admin-c:        DH5439-RIPE
tech-c:         MRPA3-RIPE
status:         ASSIGNED PA
mnt-by:         MICROSOFT-MAINT
created:        2025-09-05T22:04:02Z
last-modified:  2025-09-05T22:04:02Z
source:         RIPE

role:           Microsoft Routing, Peering, and DNS
address:        One Microsoft Way
address:        Redmond, WA 98052
nic-hdl:        MRPA3-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2014-08-26T16:25:24Z
last-modified:  2014-08-26T16:25:24Z
source:         RIPE # Filtered

person:         Divya Quamara
address:        One Microsoft Way
address:        Redmond, WA 98052
phone:          +1-425-882-8080
nic-hdl:        DH5439-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2014-08-26T16:24:14Z
last-modified:  2016-02-19T07:09:41Z
source:         RIPE

% Information related to '172.160.0.0/11AS8075'

route:          172.160.0.0/11
origin:         AS8075
descr:          Microsoft
mnt-by:         MICROSOFT-MAINT
created:        2022-07-08T19:10:28Z
last-modified:  2022-07-08T19:10:28Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.124.1 (SHETLAND)