Data as of Nov 15, 2026
81.0.252.0/24
No anonymizer space · no proxy exits in 30 daysWIA spol. 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 |
|---|---|---|---|---|---|---|
| 81. | 768 | CZ-WIA-20011214 | WIA spol. s.r.o. (ORG-WSS1-RIPE) · CZ | ALLOCATED PA | Jul 28, 2022 | abuse@ |
| └ 81.0.252.0/31 | 2 | NM-REXCONCEPTS-CHLUMECKA-BK | Rex Concepts BK Czech s.r.o. | ASSIGNED PA | Nov 13, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.4/31 | 2 | NM-ZEPPELIN-CHEBSKA-SOKOLOV | Zeppelin CZ s.r.o. | ASSIGNED PA | Sep 26, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.6/31 | 2 | NM-KFC-CHLUMECKA | AmRest s.r.o. | ASSIGNED PA | Sep 25, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.8/30 | 4 | NM-LESYHLMPRAHY-PRACSKA | Lesy hl. m. Prahy | ASSIGNED PA | Oct 26, 2023 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.12/30 | 4 | NM-TECOM-KFIALCE | T E C O M Analytical Systems CS spol. s r.o. | ASSIGNED PA | Jun 5, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.16/28 | 16 | CASABLANCAINT-CZ | Casablanca INT | ASSIGNED PA | Jul 3, 2012 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.32/30 | 4 | NM-HZSHMP-JINONICKA | Ceska republika - Hasicsky zachranny sbor hlavniho mesta Prahy | ASSIGNED PA | Jan 12, 2021 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.36/30 | 4 | NM-HZSHMP-SOKOLSKA | Ceska republika - Hasicsky zachranny sbor hlavniho mesta Prahy | ASSIGNED PA | Jan 14, 2021 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.40/30 | 4 | NM-HZSHMP-VSUDECH | Ceska republika - Hasicsky zachranny sbor hlavniho mesta Prahy | ASSIGNED PA | Jan 20, 2021 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.44/30 | 4 | NM-DDKREAL-K-HAJUM | DDK Real s.r.o. | ASSIGNED PA | May 7, 2024 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.58/31 | 2 | NM-ZEPPELIN-AMPEROVA-LIBEREC | Zeppelin CZ s.r.o. | ASSIGNED PA | Sep 22, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.60/31 | 2 | NM-ZEPPELIN-DRUZSTEVNI-ZNOJMO | Zeppelin CZ s.r.o. | ASSIGNED PA | Sep 18, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.62/31 | 2 | NM-DROPIN-BUDINOVA | DROP IN, s.r.o. | ASSIGNED PA | Sep 18, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.64/31 | 2 | NM-LABORATOREAGEL-UNAKLADOVEHONAD | Laboratore AGEL a.s. | ASSIGNED PA | Apr 24, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.66/31 | 2 | NM-SMARTY-CHLUMECKA | Smarty CZ a.s. | ASSIGNED PA | Nov 19, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.68/30 | 4 | NM-DOBROVSKY-CERNYMOST | KNIHY DOBROVSKY s.r.o. | ASSIGNED PA | Oct 14, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.72/30 | 4 | NM-ARMADNI-PODJULISKOU-PRAHA | Armadni Servisni, prispevkova organizace | ASSIGNED PA | Jan 13, 2023 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.88/29 | 8 | NM-MCDONALDS-RADLICKA | McDonald's CR spol. s r.o. | ASSIGNED PA | Nov 24, 2020 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.128/29 | 8 | NM-MCDONALDS-RADLICKA | McDonald's CR spol. s r.o. | ASSIGNED PA | Nov 24, 2020 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.144/29 | 8 | CASABLANCAINT-CZ | Casablanca INT | ASSIGNED PA | Apr 30, 2009 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.176/29 | 8 | NM-GIANTINTERACTIVE-THAMOVA | Giant interactive s.r.o. | ASSIGNED PA | Sep 7, 2026 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.184/29 | 8 | NM-ABFCATERING-BERANOVYCH | ABF Catering s.r.o. | ASSIGNED PA | Jul 22, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.208/28 | 16 | CASABLANCAINT-CZ | Casablanca INT | ASSIGNED PA | Apr 30, 2009 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.224/29 | 8 | NM-SOSCIVILNIHOLETECTVI-KLETISTI | Stredni odborna skola civilniho letectvi, Praha - Ruzyne | ASSIGNED PA | Feb 24, 2025 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.240/30 | 4 | NM-INTERSOFT-PLZEN | INTERSOFT - Automation s.r.o. | ASSIGNED PA | Dec 7, 2020 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.248/30 | 4 | NM-SEPHORA-BRNENSKA-HK | Sephora s.r.o. | ASSIGNED PA | Oct 1, 2026 | abuse@ via CZ-WIA-20011214 |
| └ 81.0.252.252/31 | 2 | NM-REXCONCEPTS-CHLUMECKA-PLK | Rex Concepts PLK Czech s.r.o. | ASSIGNED PA | Nov 13, 2025 | abuse@ via CZ-WIA-20011214 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 138 | 54% | 27 | |
| Residential | 118 | 46% | 10 |
Network & registry
Announced by
Covering announcement 81.0.252.0/23
- Prefix
- 81.0.252.0/23
- Announced by
- AS21430 WIA spol. s.r.o.
- Type
- Residential
- Proxy exits
- 1
- RPKI
- RPKI valid
- Netname
- CZ-WIA-20011214
- Registrant
- WIA spol. s.r.o.
- RIR
- RIPE NCC
Origin network
AS21430
CZ
- Name
- WIA spol. s.r.o.
- Type
- Internet provider
- Registered
- Dec 7, 2001
- Domain
- wia.cz
- Website
- www.wia.cz/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 81.0.252.0/23
81.0.252.0/23
Routing history
- Pattern
- Stable
- First seen
- Sep 2019
- Current origin since
- Sep 2019 · 7.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.0.252.0/23 | AS21430 | /23 | RIPE | RPKI valid |
IRR
Route objects on 81.0.252.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS21430 | RIPE | CASA to WIA transfer | CASABLANCA-CORE-MNT WIA-AS-MNT | Sep 3, 2019 |
Whois
Registration for this announcement
- Range
- 81.
0. 251. 0 - 81. 0. 253. 255 - Netname
- CZ-WIA-20011214
- Registrant
- WIA spol. s.r.o.
- Registrant country
- CZ
- Organization
- WIA spol. s.r.o. (ORG-WSS1-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Jul 28, 2022
- Updated
- Jul 28, 2022
- Maintainer
- WIA-AS-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Dec 14, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse@
wia. cz - Name
- WIA Abuse Contact
- Handle
- WAC9-RIPE