Data as of Nov 6, 2026
37.57.55.0/24
No anonymizer space · no proxy exits in 30 daysContent Delivery Network Ltd
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 37.57.48.0/21 since Jun 2012 | AS13188 | Residential | 23 5 always on | Content Delivery Network Ltd |
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 |
|---|---|---|---|---|---|---|
| 37.57.0.0/16 | 65,536 | UA-CDNETWORK-20120113 | Content Delivery Network Ltd (ORG-CDNL2-RIPE) · UA | ALLOCATED PA | Oct 14, 2014 | abuse@ |
| └ 37.57.55.0/24 | 256 | TRIOLAN | unknown | ASSIGNED PA | Oct 19, 2016 | abuse@ via UA-CDNETWORK-20120113 |
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
IPv4 market
Holder
- Organization
- Content Delivery Network Ltd
- Handle
- ORG-CDNL2-RIPE
- Range
- 37.
57. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Oct 14, 2014
Origin network
AS13188
UA
- Name
- Content Delivery Network Ltd
- Type
- Internet provider
- Registered
- Apr 27, 2000
- Domain
- triolan.com
- Website
- triolan.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2016
- Current origin since
- Nov 2016 · 10.0 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.57.55.0/24 | AS13188 | /24 | RIPE | RPKI valid |
| 37.57.48.0/21 | AS13188 | /21 | RIPE | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS13188 | RIPE | Triolan, Kharkiv | TRIOLANMNT SALTOVKAMNT | Jul 22, 2019 |
Whois
Registration for this announcement
- Range
- 37.
57. 55. 0/ 24 - Netname
- TRIOLAN
- Registrant country
- UA
- Organization
- Not stated by the registry
- Type
- ASSIGNED PA
- Created
- Oct 19, 2016
- Updated
- Jul 18, 2019
- Maintainer
- TRIOLANMNT
- RIR
- RIPE NCC
- Country
- UA
- Delegated
- Jan 13, 2012
- Status
- assigned
Report abuse
Abuse contact
- abuse@
triolan. com. ua - Name
- Abuse Role
- Handle
- AR37924-RIPE