Data as of Nov 10, 2026
212.189.36.0/24
Anonymizer · ISP proxyKorea Telecom · space held by GTT Communications Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Jul 2026
from AS9304 HGC Global Communications Limited
IPv4 market
Path
Announced by AS4766 since Jul 2026 · 3 mo ago
1 · Holder
record created Oct 31, 2022 · reallocated to ORG-PC1920-RIPE Apr 29, 2026
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 212.189.36.0/24 | /24s |
|---|---|---|
| IPXO | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 212.189.36.0/24 | /24s |
|---|---|---|
| GTT Communications Inc. | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
212.189.36.0/24
From the registry to its use
- May 9, 2005– May 15, 2016
- May 22, 2016– May 8, 2021
- Apr 27, 2021– today
- Oct 31, 2022Registry recordGTT Communications Inc.ALLOCATED PA212.189.0.0/17
- Apr 29, 2026Route objectAS3257 GTT Communications Inc.RIPE route object for AS3257 GTT Communications Inc., maintainer AS3257-ROUTE-MNT
- May 31, 2026– Jul 5, 2026
- Jul 29, 2026Route objectIPXORADB route object for AS4766 Korea Telecom, maintainer MAINT-AS834
- Jul 30, 2026– today
- todayLeased fromIPXOIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|---|
| 212.189.0.0/17 since Apr 2021 | AS3257 | Internet provider | 10,24031%ISP proxy | IP broker IPXO (part) | 58 | GTT Communications Inc. |
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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 212.189.0.0/17 | 32,768 | US-GTTCOMMUNICATIONS-19990526 | GTT Communications Inc. (ORG-GCI2-RIPE) · US | ALLOCATED PA | Oct 31, 2022 | abuse@ |
| └ 212.189.36.0/24 | 256 | IPXO-GTT | unknown | SUB-ALLOCATED PA | Apr 29, 2026 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- GTT Communications Inc.
- Handle
- ORG-GCI2-RIPE
- Range
- 212.
189. 0. 0/ 17 - Registration type
- ALLOCATED PA
- Record created
- Oct 31, 2022
- Reallocated to
- ORG-PC1920-RIPE
- Reallocated range
- 212.
189. 36. 0/ 24 - Reallocation type
- SUB-ALLOCATED PA
- Reallocated
- Apr 29, 2026
Origin network
AS4766
KR
- Name
- Korea Telecom
- Type
- Internet provider
- Registered
- Apr 22, 1996
- Domain
- kt.com
- Website
- www.kt.com/eng/main.jsp
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2026
- Current origin since
- Jul 2026 · 3 mo
- Origin networks
- 2
- Last change of origin
- Jul 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 212.189.36.0/24 | AS4766 | /24 | RIPE | RPKI valid |
| 212.189.0.0/17 | AS3257 | /17 | RIPE | Another network |
Whois
Registration for this announcement
- Range
- 212.
189. 36. 0/ 24 - Netname
- IPXO-GTT
- Registrant country
- EU
- Organization
- Not stated by the registry
- Type
- SUB-ALLOCATED PA
- Created
- Apr 29, 2026
- Updated
- Jul 29, 2026
- Maintainer
- netutils-mnt
- RIR
- RIPE NCC
- Country
- US
- Delegated
- May 26, 1999
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Private Customer
- Handle
- PC21661-RIPE