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Data as of Nov 8, 2026

81.0.251.0/24

No anonymizer space · no proxy exits in 30 days

WIA spol. s.r.o.

Announcement
this exact prefix
RPKI valid
Announced by
AS21430
Type
Business
78% of it

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
81.0.251.0 - 81.0.253.255768CZ-WIA-20011214WIA spol. s.r.o. (ORG-WSS1-RIPE) · CZALLOCATED PAJul 28, 2022abuse@wia.cz
└ 81.0.251.0/298MudrMartinStransky-CZMUDr. Martin StranskyASSIGNED PAApr 30, 2009abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.8/298EuroagenturHotelsTravel-CZEuroAgentur Hotels & Travel a.s.ASSIGNED PAApr 30, 2009abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.16/298NM-SICSPOL-NAFOLIMANCES.I.C. spol. s r.o.ASSIGNED PAMar 13, 2026abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.24/298UtaCzech-CZUTA Czech s.r.o.ASSIGNED PAApr 12, 2016abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.32/298AkcentInternationalHousePragueDruzstvo-CZAKCENT International House Prague, druzstvoASSIGNED PAFeb 18, 2013abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.40/298Rur-CZR.U.R., a.s.ASSIGNED PAJul 11, 2011abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.48/2816ArcaCapitalBohemia-CZArca Capital Bohemia, a.s.ASSIGNED PADec 6, 2011abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.64/2816Jurista-CZJURISTA, a.s.ASSIGNED PAAug 12, 2011abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.88/298CESKYATLETICKYSVAZ-CZCesky atleticky svazASSIGNED PASep 10, 2019abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.96/298NM-INNOVAHEALTHCARE-SEYDLEROVAChirurgicke obory Praha s.r.o.ASSIGNED PAApr 7, 2026abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.104/298BCJosefSlobodnik-CZBc. Josef SlobodnikASSIGNED PAJul 21, 2011abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.128/298NM-AUTO-RALLYE-PARKHOTEL-PLZENAuto rallye klub Plzen v ACRASSIGNED PAMay 25, 2022abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.136/298NM-DRUPOL-VELTRUSKADRUPOL, vyrobni druzstvoASSIGNED PAApr 7, 2026abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.144/298NM-CZECHINNHOTELS-LEGEROVACZECH INN HOTELS s.r.o.ASSIGNED PAMar 27, 2023abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.160/298EuroagenturHotelsTravel-CZEuroAgentur Hotels & Travel a.s.ASSIGNED PAFeb 26, 2010abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.168/298ASComputers-CZAS Computers s.r.o.ASSIGNED PAApr 7, 2014abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.176/298Ipsecurity-CZIpsecurity, s.r.o.ASSIGNED PAFeb 19, 2013abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.184/298AssessmentSystems-CZAssessment Systems s.r.o.ASSIGNED PAMay 27, 2013abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.192/298NM-SPONSIO-NEPOMUCKASponsio s.r.o.ASSIGNED PAFeb 19, 2026abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.200/298PolyoneCR-CZPolyOne CR s.r.o.ASSIGNED PAApr 30, 2009abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.208/298ICHotels-CZIC HOTELS a.s.ASSIGNED PAJun 19, 2013abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.216/298EtoileCZ-CZETOILE CZ a.s.ASSIGNED PANov 22, 2013abuse@wia.cz
via CZ-WIA-20011214
└ 81.0.251.248/298GymnaziumJanaNerudy-CZGymnazium Jana NerudyASSIGNED PAApr 30, 2009abuse@wia.cz
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
TypeAddressesShareRanges
Business20078%23
Residential5622%4

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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