Data as of Nov 4, 2026
92.253.208.0/22
No anonymizer space · no proxy exits in 30 daysALFA TELECOM s.r.o.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 92.253.208.0/24 since Aug 2025 | AS198803 | Internet provider | ALFA TELECOM s.r.o. | |
| 92.253.209.0/24 since Aug 2025 | AS198803 | Internet provider | ALFA TELECOM s.r.o. | |
| 92.253.211.0/24 since Jul 2026 | AS198803 | Internet provider | ALFA TELECOM s.r.o. |
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 |
|---|---|---|---|---|---|---|
| 92.253.128.0/17 | 32,768 | CZ-ALFATELECOM-20071203 | ALFA TELECOM s.r.o. (ORG-ATS13-RIPE) · CZ | ALLOCATED PA | Dec 3, 2007 | [email protected] |
| └ 92.253.208.0/22 | 1,024 | ALLONS-NET | Alonstelefonstroy LLP (ORG-AL967-RIPE) · KZ | ASSIGNED PA | Feb 6, 2025 | [email protected] |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 768 | 75% | 3 | |
| Residential | 256 | 25% | 1 |
Network & registry
Announced by
Covering announcement 92.253.128.0/17
- Prefix
- 92.253.128.0/17
- Announced by
- AS44546 ALFA TELECOM s.r.o.
- Type
- Residential
- Proxy exits
- 4,335
- Always-on exits
- 442
- RPKI
- RPKI valid
- Netname
- CZ-ALFATELECOM-20071203
- Registrant
- ALFA TELECOM s.r.o.
- RIR
- RIPE NCC
Origin network
AS44546
CZ
- Name
- ALFA TELECOM s.r.o.
- Type
- Internet provider
- Registered
- Feb 5, 2008
- Domain
- alfatelecom.cz
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 92.253.128.0/17
92.253.128.0/17
Routing history
- Pattern
- Stable
- First seen
- Dec 2007
- Current origin since
- Oct 2009 · 17 yr
- Origin networks
- 4
- Last change of origin
- Oct 2009
Recorded history
History
- Handoffs
- 4
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 92.253.128.0/17 | AS44546 | /24 | RIPE | RPKI valid |
IRR
Route objects on 92.253.128.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS44546 | RIPE | IP-AS.COM | RIPE-DB-MNT | Sep 22, 2026 |
Whois
Registration for this announcement
- Range
- 92.253.128.0/17
- Netname
- CZ-ALFATELECOM-20071203
- Registrant
- ALFA TELECOM s.r.o.
- Registrant country
- EU
- Organization
- ALFA TELECOM s.r.o. (ORG-ATS13-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Dec 3, 2007
- Updated
- May 16, 2023
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Dec 3, 2007
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Alfa Telecom s.r.o. NOC
- Handle
- ATCZ-RIPE