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Data as of Nov 10, 2026

5.28.0.0/22

No anonymizer space · no proxy exits in 30 days

Magyarorszagi Internet Szolgaltatok Tanacsa Tudomanyos Egyesulet · space held by ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT.

Announcement
this exact prefix
No RPKI
Announced by
AS12303
Type
Residential
98% 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
5.28.0.0/212,048HU-ISZT-20120508ISZT INTERNET SZOLGALTATOK Halozati Koordinacios Kozpontja Nonprofit KFT. (ORG-IISH1-RIPE) · HUALLOCATED PAMay 8, 2012abuse@nic.hu
└ 5.28.0.0/2816ISZT-NONPROFIT-KFTISZT Nonprofit Kft.ASSIGNED PAMay 8, 2012abuse@nic.hu
via HU-ISZT-20120508
└ 5.28.0.16/298ISZT-RIPE-ATLAS-ANCHORCouncil of Hungarian Internet Providers (CHIP) - RIPE Atlas Anchor ProbeASSIGNED PAJan 13, 2014abuse@nic.hu
via HU-ISZT-20120508
└ 5.28.0.32/2816ISZT-NONPROFIT-KFT-backboneunknownASSIGNED PAMar 4, 2019abuse@nic.hu
via HU-ISZT-20120508
└ 5.28.0.48/2816ISZT-NONPROFIT-KFT-DMZunknownASSIGNED PAMar 4, 2019abuse@nic.hu
via HU-ISZT-20120508
└ 5.28.0.64/2816STRATUM-1-NTPunknownASSIGNED PAJun 17, 2021abuse@nic.hu
via HU-ISZT-20120508
└ 5.28.3.0/24256ISZT-NONPROFIT-KFT-SERVICESunknownASSIGNED PAMar 4, 2019abuse@nic.hu
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.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

1,024 addresses
TypeAddressesShareRanges
Residential1,00898%2
Business161.6%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
Apr 2026
Current origin since
Apr 2026 · 7 mo
Origin networks
1