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Data as of Nov 9, 2026

51.81.128.0/17

10 anonymizer addresses · 0.03%336 residential-proxy exits · 30 days

OVH SAS · space held by OVH US LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS16276
Type
Hosting
>99% of it

Residential-proxy exits

Proxy exits
336
1.0% of its addresses · 30 days
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

8.1K observations
  • VPN · anonymizer
  • Tor exit · anonymizer
  • Hosting
IPv4 market

Path

1 · Holder
OVH US LLC
record created Mar 11, 2019
2 · Leased from
not leased
3 · Announced by
AS16276 OVH SAS
since Apr 2019 · 7.6 yr ago
4 · Use
VPN servicesnamed VeePN, VPNSecurenamed Tor
Hosting

Operators, sellers and brokers

VPN services

NameParentIn 51.81.128.0/17/24s
VeePN
50.02%
3
VPNSecure
40.01%
1

Tor

NameParentIn 51.81.128.0/17/24s
TorThe Tor Project
1<0.01%
1

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

51.81.128.0/17

From the registry to its use

  1. Mar 11, 2019
    Registry record
    OVH US LLC
    Direct Allocation
    51.81.0.0/16
  2. Mar 27, 2019
    Route object
    AS16276 OVH SAS
    ARIN route object for AS16276 OVH SAS, maintainer MNT-OUL-16
  3. Apr 2, 2019– today
    Announced
    AS16276 OVH SAS
    Hosting
  4. today
    Used
    VeePN
    VPN
  5. today
    Used
    VPNSecure
    VPN
  6. today
    Used
    Tor
    Tor

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
51.81.0.0/1665,536OUL-16OVH US LLC (OUL-16) · USDirect AllocationMar 11, 2019abuse@ovh.us
└ 51.81.129.0/25128OVH-CUST-126786447unknown———
└ 51.81.129.192/2664OVH-DEDICATED-FOunknown———
└ 51.81.130.0/2732OVH-CUST-435438unknown———
└ 51.81.130.36/304OVH-CUST-393261unknown———
└ 51.81.130.40/298OVH-CUST-58115178unknown———
└ 51.81.130.80/304OVH-CUST-11454306unknown———
└ 51.81.130.88/298OVH-CUST-125941697unknown———
└ 51.81.130.128/2664OVH-CUST-115393438unknown———
└ 51.81.131.0/2732OVH-CUST-336266unknown———
└ 51.81.131.40/298OVH-CUST-58174400unknown———
└ 51.81.131.56/304OVH-CUST-123572200unknown———
└ 51.81.131.64/2816OVH-CUST-177867428unknown———
└ 51.81.131.80/298OVH-CUST-5676779unknown———
└ 51.81.131.88/298OVH-CUST-5724280unknown———
└ 51.81.131.128/2732OVH-CUST-338604unknown———
└ 51.81.131.168/298OVH-CUST-175226931unknown———
└ 51.81.131.176/298OVH-CUST-162922978unknown———
└ 51.81.131.192/298OVH-CUST-162987959unknown———
└ 51.81.131.208/298OVH-CUST-174526788unknown———
└ 51.81.131.240/298OVH-CUST-175610347unknown———
└ 51.81.131.248/304OVH-CUST-11464337unknown———
└ 51.81.131.252/304OVH-CUST-159891678unknown———
└ 51.81.132.136/298OVH-CUST-150190554unknown———
└ 51.81.132.152/298OVH-CUST-175613033unknown———
└ 51.81.132.168/298OVH-CUST-179107684unknown———
└ 51.81.132.184/298OVH-CUST-175701062unknown———
└ 51.81.132.208/2816OVH-CUST-12434922unknown———
└ 51.81.132.232/298OVH-CUST-175875095unknown———
└ 51.81.132.248/298OVH-CUST-175894508unknown———
└ 51.81.133.0/2732OVH-CUST-340020unknown———
└ 51.81.133.48/2816OVH-CUST-173394298unknown———
└ 51.81.133.64/298OVH-CUST-176295958unknown———
└ 51.81.133.88/298OVH-CUST-11855712unknown———
└ 51.81.133.200/298OVH-CUST-176790007unknown———
└ 51.81.133.208/298OVH-CUST-177929636unknown———
└ 51.81.133.216/304OVH-CUST-174192896unknown———
└ 51.81.133.224/2816OVH-CUST-161816559unknown———
└ 51.81.133.240/2816OVH-CUST-178184929unknown———
└ 51.81.134.48/298OVH-CUST-167476550unknown———
└ 51.81.134.96/2732OVH-CUST-344284unknown———
└ 51.81.134.128/298OVH-CUST-150038056unknown———
└ 51.81.134.136/304OVH-CUST-174484144unknown———
└ 51.81.134.152/298OVH-CUST-177972290unknown———
└ 51.81.134.176/298OVH-CUST-178130336unknown———
└ 51.81.135.32/298OVH-CUST-11784260unknown———
└ 51.81.135.40/298OVH-CUST-128290447unknown———
└ 51.81.135.48/2816OVH-CUST-174193519unknown———
└ 51.81.135.144/298OVH-CUST-5537408unknown———
└ 51.81.135.152/298OVH-CUST-77254120unknown———
└ 51.81.135.216/304OVH-CUST-168644868unknown———
└ 51.81.135.220/304OVH-CUST-174502081unknown———
└ 51.81.135.224/2816OVH-CUST-112343705unknown———
└ 51.81.135.240/304OVH-CUST-88146779unknown———
└ 51.81.135.248/298OVH-CUST-11860550unknown———
└ 51.81.136.0/2664OVH-CUST-356225unknown———
└ 51.81.137.8/298OVH-CUST-8960910unknown———
└ 51.81.137.16/2816OVH-CUST-174557477unknown———
└ 51.81.137.68/304OVH-CUST-41037318unknown———
└ 51.81.137.72/304OVH-CUST-11665800unknown———
└ 51.81.137.80/2816OVH-CUST-174557488unknown———
└ 51.81.137.96/2816OVH-CUST-114548057unknown———
└ 51.81.137.112/304OVH-CUST-9295223unknown———
└ 51.81.137.116/304OVH-CUST-9330056unknown———
└ 51.81.137.128/25128OVH-DEDICATED-FOunknown———
└ 51.81.138.0/2732OVH-CUST-364437unknown———
└ 51.81.138.32/2732OVH-CUST-365961unknown———
└ 51.81.138.64/298OVH-CUST-75341078unknown———
└ 51.81.138.76/304OVH-CUST-159800900unknown———
└ 51.81.138.80/2816OVH-CUST-174557549unknown———
└ 51.81.138.96/2732OVH-CUST-368013unknown———
└ 51.81.138.160/2732OVH-CUST-16223456unknown———
└ 51.81.138.192/304OVH-CUST-160104946unknown———
└ 51.81.138.224/2816OVH-CUST-45290795unknown———
└ 51.81.138.240/298OVH-CUST-167606999unknown———
└ 51.81.139.32/2816OVH-CUST-178187771unknown———
└ 51.81.139.224/298OVH-CUST-167713773unknown———
└ 51.81.139.232/304OVH-CUST-160245064unknown———
└ 51.81.139.236/304OVH-CUST-161626910unknown———
└ 51.81.139.240/2816OVH-CUST-6902288unknown———
└ 51.81.140.0/25128OVH-DEDICATED-FOunknown———
└ 51.81.140.224/2816OVH-CUST-160498652unknown———
└ 51.81.140.240/2816OVH-CUST-174557562unknown———
└ 51.81.141.0/2816OVH-CUST-174557607unknown———
└ 51.81.141.16/2816OVH-CUST-403996unknown———
└ 51.81.141.32/2816OVH-CUST-174639011unknown———
└ 51.81.141.48/298OVH-CUST-405758unknown———
└ 51.81.141.64/2816OVH-CUST-174671323unknown———
└ 51.81.141.80/2816OVH-CUST-177959495unknown———
└ 51.81.141.96/2816OVH-CUST-406671unknown———
└ 51.81.142.0/25128OVH-DEDICATED-FOunknown———
└ 51.81.142.136/304OVH-CUST-160283404unknown———
└ 51.81.142.140/304OVH-CUST-168681505unknown———
└ 51.81.142.144/2816OVH-CUST-178218500unknown———
└ 51.81.143.128/304OVH-CUST-11507770unknown———
└ 51.81.143.132/304OVH-CUST-451595unknown———
└ 51.81.143.144/2816OVH-CUST-174671340unknown———
└ 51.81.143.176/2816OVH-CUST-5036944unknown———
└ 51.81.143.192/2816OVH-CUST-139605104unknown———
└ 51.81.143.208/2816OVH-CUST-174774366unknown———
└ 51.81.143.224/304OVH-CUST-9213190unknown———
└ 51.81.143.228/304OVH-CUST-175613034unknown———
└ 51.81.143.236/304OVH-CUST-112662661unknown———
└ 51.81.143.240/2816OVH-CUST-174774377unknown———
└ 51.81.144.0/2816OVH-CUST-12498846unknown———
└ 51.81.144.24/298OVH-CUST-20410170unknown———
└ 51.81.144.32/2816OVH-CUST-174774420unknown———
└ 51.81.144.48/298OVH-CUST-424282unknown———
└ 51.81.144.128/2664OVH-DEDICATED-FOunknown———
└ 51.81.144.192/2816OVH-CUST-174775639unknown———
└ 51.81.144.208/304OVH-CUST-160284282unknown———
└ 51.81.144.212/304OVH-CUST-479128unknown———
└ 51.81.144.220/304OVH-CUST-160291014unknown———
└ 51.81.144.240/304OVH-CUST-165764066unknown———
└ 51.81.145.32/2816OVH-CUST-160521049unknown———
└ 51.81.145.48/2816OVH-CUST-174775843unknown———
└ 51.81.145.160/2732OVH-CUST-11760326unknown———
└ 51.81.145.192/2816OVH-CUST-11761415unknown———
└ 51.81.145.216/298OVH-CUST-12610654unknown———
└ 51.81.146.0/25128OVH-DEDICATED-FOunknown———
└ 51.81.146.192/2816OVH-CUST-174775844unknown———
└ 51.81.146.208/2816OVH-CUST-131010651unknown———
└ 51.81.146.224/2732OVH-CUST-11537397unknown———
└ 51.81.147.8/304OVH-CUST-51361190unknown———
└ 51.81.147.16/2816OVH-CUST-11539536unknown———
└ 51.81.147.32/2732OVH-CUST-11539315unknown———
└ 51.81.147.64/2816OVH-CUST-37516827unknown———
└ 51.81.147.124/304OVH-CUST-41180556unknown———
└ 51.81.147.128/25128OVH-DEDICATED-FOunknown———
└ 51.81.148.128/25128OVH-DEDICATED-FOunknown———
└ 51.81.149.72/298OVH-CUST-453755unknown———
└ 51.81.149.80/2816OVH-CUST-174775857unknown———
└ 51.81.149.108/304OVH-CUST-131778927unknown———
└ 51.81.149.112/2816OVH-CUST-175125855unknown———
└ 51.81.149.128/25128OVH-DEDICATED-FOunknown———
└ 51.81.150.0/25128OVH-DEDICATED-FOunknown———
└ 51.81.150.128/25128OVH-CUST-12601485unknown———
└ 51.81.151.128/25128OVH-DEDICATED-FOunknown———
└ 51.81.152.0/24256SD-1G-HB-H109B-RANGE-2unknown———
└ 51.81.153.0/24256PCI-US-WEST-OR-1unknown———
└ 51.81.154.0/24256SD-HIL-H110A00-MAGGIE-INFRA-002unknown———
└ 51.81.155.0/24256SD-HILOVH US LLC (OUL-58) · USReassignedOct 5, 2021abuse@ovh.us
└ 51.81.156.68/304OVH-CUST-127906583unknown———
└ 51.81.156.72/298OVH-CUST-108833735unknown———
└ 51.81.156.96/2816OVH-CUST-175125856unknown———
└ 51.81.156.112/2816OVH-CUST-12480569unknown———
└ 51.81.158.0/24256OVH-CUST-125909449unknown———
└ 51.81.159.32/298OVH-CUST-119041278unknown———
└ 51.81.159.40/304OVH-CUST-41037839unknown———
└ 51.81.159.48/298OVH-CUST-460612unknown———
└ 51.81.159.104/304OVH-CUST-136105270unknown———
└ 51.81.159.112/2816OVH-CUST-132221799unknown———
└ 51.81.159.128/2816OVH-CUST-472222unknown———
└ 51.81.159.144/2816OVH-CUST-175125857unknown———
└ 51.81.159.168/298OVH-CUST-114565192unknown———
└ 51.81.159.176/2816OVH-CUST-160553552unknown———
└ 51.81.160.48/2816OVH-CUST-176302983unknown———
└ 51.81.160.96/2816OVH-CUST-176302977unknown———
└ 51.81.160.112/298OVH-CUST-57150387unknown———
└ 51.81.160.128/2732OVH-CUST-479133unknown———
└ 51.81.160.160/2816OVH-CUST-54170872unknown———
└ 51.81.160.176/298OVH-CUST-8394341unknown———
└ 51.81.160.224/2816OVH-CUST-48207305unknown———
└ 51.81.160.240/2816OVH-CUST-482049unknown———
└ 51.81.161.192/2732OVH-CUST-11773535unknown———
└ 51.81.161.224/298OVH-CUST-11775902unknown———
└ 51.81.161.232/304OVH-CUST-165923756unknown———
└ 51.81.161.236/304OVH-CUST-131723251unknown———
└ 51.81.161.240/298OVH-CUST-12529890unknown———
└ 51.81.161.248/298OVH-CUST-11776960unknown———
└ 51.81.162.0/2816OVH-CUST-479559unknown———
└ 51.81.162.28/304OVH-CUST-11747915unknown———
└ 51.81.162.128/2816OVH-CUST-57093580unknown———
└ 51.81.162.144/2816OVH-CUST-471186unknown———
└ 51.81.162.160/304OVH-CUST-165958294unknown———
└ 51.81.162.220/304OVH-CUST-478391unknown———
└ 51.81.163.0/304OVH-CUST-11753017unknown———
└ 51.81.163.40/298OVH-CUST-11746089unknown———
└ 51.81.163.88/298OVH-CUST-11621331unknown———
└ 51.81.163.96/2732OVH-CUST-152847754unknown———
└ 51.81.163.128/2816OVH-CUST-108174599unknown———
└ 51.81.163.144/2816OVH-CUST-150943672unknown———
└ 51.81.164.0/2664OVH-DEDICATED-FOunknown———
└ 51.81.164.64/298OVH-CUST-11746464unknown———
└ 51.81.164.80/304OVH-CUST-482357unknown———
└ 51.81.164.96/2816OVH-CUST-55554067unknown———
└ 51.81.164.160/2816OVH-CUST-108151398unknown———
└ 51.81.164.176/304OVH-CUST-483207unknown———
└ 51.81.164.180/304OVH-CUST-55715123unknown———
└ 51.81.164.208/298OVH-CUST-120063805unknown———
└ 51.81.164.244/304OVH-CUST-488189unknown———
└ 51.81.164.248/304OVH-CUST-488215unknown———
└ 51.81.164.252/304OVH-CUST-53749741unknown———
└ 51.81.165.0/2816OVH-CUST-115393196unknown———
└ 51.81.165.16/298OVH-CUST-11786526unknown———
└ 51.81.165.64/2816OVH-CUST-61119756unknown———
└ 51.81.165.104/298OVH-CUST-489197unknown———
└ 51.81.165.112/298OVH-CUST-489376unknown———
└ 51.81.165.120/304OVH-CUST-11523279unknown———
└ 51.81.165.136/298OVH-CUST-16256547unknown———
└ 51.81.165.148/304OVH-CUST-5619068unknown———
← Previous1–200 of 563 · page 1 of 3Next →

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

32,768 addresses
TypeAddressesShareRanges
Hosting32,758>99%31
VPNanonymizer90.03%9
Tor exitanonymizer1<0.01%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS16276

FR
Name
OVH SAS
Type
Hosting
Registered
Feb 15, 2001
Domain
ovhcloud.com
Website
www.ovhcloud.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed
VPN servers
360
Tor exits
12