Data as of Nov 10, 2026
5.28.3.0/24
No anonymizer space · no proxy exits in 30 daysMagyarorszagi Internet Szolgaltatok Tanacsa Tudomanyos Egyesulet · space held by ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT.
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 |
|---|---|---|---|---|---|---|
| 5.28.0.0/21 | 2,048 | HU-ISZT-20120508 | ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT. (ORG-IISH1-RIPE) · HU | ALLOCATED PA | May 8, 2012 | abuse@ |
| └ 5.28.3.0/24 | 256 | ISZT-NONPROFIT-KFT-SERVICES | unknown | ASSIGNED PA | Mar 4, 2019 | abuse@ via HU-ISZT-20120508 |
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 5.28.0.0/22
- Prefix
- 5.28.0.0/22
- Announced by
- AS12303 Magyarorszagi Internet Szolgaltatok Tanacsa Tudomanyos Egyesulet
- Type
- Residential
- RPKI
- No RPKI
- Netname
- HU-ISZT-20120508
- Registrant
- ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT.
- RIR
- RIPE NCC
Origin network
AS12303
HU
- Name
- Magyarorszagi Internet Szolgaltatok Tanacsa Tudomanyos Egyesulet
- Type
- Internet provider
- Registered
- Jun 14, 2005
- Domain
- domain.hu
- Website
- www.domain.hu/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 5.28.0.0/22
5.28.0.0/22
Routing history
- Pattern
- Stable
- First seen
- Apr 2026
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 1
IRR
Route objects on 5.28.0.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS12303 | RIPE | ISZT Nonprofit Kft. | ISZT-MNT | Apr 17, 2026 |
Whois
Registration for this announcement
- Range
- 5.
28. 0. 0/ 21 - Netname
- HU-ISZT-20120508
- Registrant
- ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT.
- Registrant country
- HU
- Organization
- ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT. (ORG-IISH1-RIPE)
- Org country
- HU
- Type
- ALLOCATED PA
- Created
- May 8, 2012
- Updated
- May 30, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- HU
- Delegated
- May 8, 2012
- Status
- assigned
Report abuse
Abuse contact
- abuse@
nic. hu - Name
- ISZT ABUSE
- Handle
- IA3309-RIPE