Data as of Nov 6, 2026
151.237.228.0/24
No anonymizer space · no proxy exits in 30 daysQuantcom, a.s.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 151.237.224.0/21 | 2,048 | CZ-QUANTCOM-20120816 | Quantcom, a.s. (ORG-IA8-RIPE) · CZ | ALLOCATED PA | Aug 16, 2012 | abuse@ |
| └ 151.237.228.0/24 | 256 | MAXNET-REZINET-OFFICENET-BOSKOVICE | New range for customers in Boskovice city | ASSIGNED PA | Mar 14, 2013 | abuse@ via CZ-QUANTCOM-20120816 |
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
Announced by
Covering announcement 151.237.224.0/21
- Prefix
- 151.237.224.0/21
- Announced by
- AS29208 Quantcom, a.s.
- Type
- Internet provider
- Proxy exits
- 2
- RPKI
- RPKI valid
- Netname
- CZ-QUANTCOM-20120816
- Registrant
- Quantcom, a.s.
- RIR
- RIPE NCC
Origin network
AS29208
CZ
- Name
- Quantcom, a.s.
- Type
- Internet provider
- Registered
- Jul 1, 2003
- Domain
- quantcom.cz
- Website
- www.quantcom.cz
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 151.237.224.0/21
151.237.224.0/21
Routing history
- Pattern
- Rotating
- First seen
- Aug 2012
- Current origin since
- Oct 2025 · 1.0 yr
- Origin networks
- 2
- Last change of origin
- Oct 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.237.224.0/21 | AS29208 | /21 | RIPE | RPKI valid |
| 151.237.224.0/21 | AS34315 | /21 | RIPE | Another network |
IRR
Route objects on 151.237.224.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS29208 | RIPE | QUANTCOM a.s. | DIALTELECOM-MNT | May 29, 2023 |
Whois
Registration for this announcement
- Range
- 151.
237. 224. 0/ 21 - Netname
- CZ-QUANTCOM-20120816
- Registrant
- Quantcom, a.s.
- Registrant country
- CZ
- Organization
- Quantcom, a.s. (ORG-IA8-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Aug 16, 2012
- Updated
- Nov 4, 2024
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Aug 16, 2012
- Status
- assigned
Report abuse
Abuse contact
- abuse@
dialtelecom. cz - Name
- Abuse-C Role
- Handle
- AR14411-RIPE