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Data as of Nov 3, 2026

37.44.231.0/24

Anonymizer · ISP proxy

British Telecommunications Limited · space held by Netwise Hosting Ltd

Announcement
this exact prefix
RPKI valid
Announced by
AS2856
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Netwise Hosting Ltd
record created Nov 23, 2020
2 · Leased from
IPXO
for its owner Netwise Hosting Ltd
3 · Announced by
AS2856 British Telecommunications Limited
since Sep 2025 · 13 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 37.44.231.0/24/24s
IPXO
256100%
1
Leased from

Owners leasing their own space

NameIn 37.44.231.0/24/24s
Netwise Hosting Ltd
256100%
1

Lineage

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

37.44.231.0/24

From the registry to its use

  1. Nov 21, 2018– Apr 13, 2019
    Announced
    AS60721 Bursabil Teknoloji A.S.
    Hosting
  2. Apr 2, 2019– Jan 14, 2020
    Announced
    AS57844 SPDNet Telekomunikasyon Hizmetleri Bilgi Teknolojileri Taahhut Sanayi Ve Ticaret A.S.
    Hosting
  3. Jan 3, 2020– Nov 21, 2020
    Announced
    AS40676 Psychz Networks
    Hosting
  4. Nov 23, 2020
    Registry record
    Netwise Hosting Ltd
    ALLOCATED PA
    37.44.228.0/22
  5. Mar 29, 2022– Apr 9, 2022
    Announced
    AS210892 Lightspeed Networks Ltd
    Internet provider
  6. Aug 8, 2022– Jul 21, 2023
    Announced
    AS210892 Lightspeed Networks Ltd
    Internet provider
  7. Aug 16, 2025– Aug 27, 2025
    Announced
    AS214937 Eleven Holdings Limited
    Internet provider
  8. Aug 22, 2025
    Route object
    IPXO
    RADB route object for AS2856 British Telecommunications Limited, maintainer MAINT-AS834
  9. Sep 21, 2025– today
    Announced
    AS2856 British Telecommunications Limited
    Internet provider
  10. Sep 24, 2025
    Reallocated
    Netwise Hosting Ltd
    SUB-ALLOCATED PA
    37.44.230.0/23
  11. today
    Leased from
    IPXO
    IP broker

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
37.44.228.0/221,024UK-NETWISE3-20181112Netwise Hosting Ltd (ORG-NHL21-RIPE) · GBALLOCATED PANov 23, 2020[email protected]
└ 37.44.230.0/23512IPXONetwise Hosting Ltd (ORG-NHL21-RIPE) · GBSUB-ALLOCATED PASep 24, 2025[email protected]
└ 37.44.231.0/24256IPXOunknownASSIGNED PAFeb 15, 2023[email protected]
via IPXO

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

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Netwise Hosting Ltd
Handle
ORG-NHL21-RIPE
Range
37.44.228.0/22
Registration type
ALLOCATED PA
Record created
Nov 23, 2020
Origin network

AS2856

GB
Name
British Telecommunications Limited
Type
Internet provider
Registered
Dec 22, 1993
Domain
bt.net
Website
www.bt.net
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
12