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Data as of Nov 7, 2026

137.236.0.0/16

No anonymizer space · no proxy exits in 30 days

Open Text Corporation

Announcement
this exact prefix
No RPKI
Announced by
AS27495
Type
Business
>99% of it

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

Arrived
PrefixOriginTypeHolderRPKI
137.236.20.0/24
since Sep 2025
AS35888BusinessOpen Text Corporation
137.236.21.0/24
since Jul 2025
AS7381HostingOpen Text Corporation
137.236.27.0/24
since Oct 2018
AS27570BusinessOpen Text Corporation
137.236.34.0/24
since Jul 2008
AS27495BusinessOpen Text Corporation
137.236.36.0/24
since Jun 2026
AS27495BusinessOpen Text Corporation
137.236.42.0/24
since Apr 2023
AS3356BusinessOpen Text Corporation
137.236.44.0/24
since Nov 2005
AS31917BusinessOpen Text Corporation
137.236.48.0/24
since Jan 2020
AS3356BusinessOpen Text Corporation
137.236.81.0/24
since Aug 2018
AS27570BusinessOpen Text Corporation
137.236.131.0/24
since Aug 2013
AS31917BusinessOpen Text Corporation
137.236.151.0/24
since Jul 2013
AS6468BusinessOpen Text Corporation
137.236.154.0/24
since May 2005
AS31917BusinessOpen Text Corporation
137.236.157.0/24
since Feb 2011
AS31917BusinessOpen Text Corporation
137.236.164.0/24
since May 2005
AS31917BusinessOpen Text Corporation
137.236.165.0/24
since May 2005
AS31917BusinessOpen Text Corporation
137.236.182.0/24
since May 2011
AS31917BusinessOpen Text Corporation
137.236.183.0/24
since Oct 2023
AS31917BusinessOpen Text Corporation
137.236.211.0/24
since Sep 2018
AS27495BusinessOpen Text Corporation
137.236.241.0/24
since Aug 2013
AS27495BusinessOpen Text Corporation

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
137.236.0.0/1665,536OPENTEXT-NET-EL-XPEDOpen Text Corporation (OTC-68) · CADirect AllocationJul 31, 1989smithr@opentext.com
└ 137.236.2.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.4.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.30.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.45.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.154.0/24256XDDS-TINTON-FALLS-NJunknownReassignedSep 24, 2025smithr@opentext.com
via OPENTEXT-NET-EL-XPED
└ 137.236.164.0/24256XDDS-TINTON-FALLS-NJunknownReassignedSep 24, 2025smithr@opentext.com
via OPENTEXT-NET-EL-XPED
└ 137.236.165.0/24256XDDS-TINTON-FALLS-NJunknownReassignedSep 24, 2025smithr@opentext.com
via OPENTEXT-NET-EL-XPED
└ 137.236.177.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.182.0/24256XDDS-TINTON-FALLS-NJunknownReassignedSep 24, 2025smithr@opentext.com
via OPENTEXT-NET-EL-XPED
└ 137.236.183.0/24256XDDS-TINTON-FALLS-NJunknownReassignedSep 24, 2025smithr@opentext.com
via OPENTEXT-NET-EL-XPED
└ 137.236.218.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.223.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.230.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.233.0/24256XDDS-TINTON-FALLS-NJunknown———
└ 137.236.241.0/24256XDDS-TINTON-FALLS-NJunknownReassignedSep 25, 2025smithr@opentext.com
via OPENTEXT-NET-EL-XPED
└ 137.236.253.0/24256XDDS-TINTON-FALLS-NJunknown———

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

65,536 addresses
TypeAddressesShareRanges
Business65,280>99%35
Hosting2560.39%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS27495

CA
Name
Open Text Corporation
Type
Business
Registered
Jul 30, 2018
Domain
opentext.com
Industry
Software Development
Spamhaus ASN-DROP
not listed