Autonomous system
AS47558 kntu-AS Kajeh Nasir Toosi University of Technology
Unclassified RIPE
Summary
K. N. Toosi University of Technology
education university iran
KNTU-AS is operated by K. N. Toosi University of Technology.
What it's used for
- The address space carries university infrastructure, evidenced by reverse DNS entries such as
static.254.182.184.94.clients.kntu.ac.irandneshast.kntu.ac.ir, all under thekntu.ac.irdomain. - The AS announces 2048 IPv4 addresses across 3 prefixes with only 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or large-scale access provider.
- Traffic from this AS consists of academic and research endpoints, including static client hosts and specific university services, supporting the institution's internal operations.
Notable
- All registrants for the announced prefixes are listed as "Khajeh Nasir University ABUSE object" with the netname
kntu-net, which aligns directly with the AS holder. - The address inventory is compact, consisting of three contiguous IPv4 blocks within the 94.184.176.0/22 range, with no IPv6 prefixes announced.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS6736 | Institute for Research in Fundamental Sciences | 174 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-06, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IR | Iran (Islamic Republic of) | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS47558- Registry name
- kntu-AS
- Registrant
- IPM-MNT
- Abuse contact
- abuse@mail.kntu.ac.ir
- Registered
- 2016-10-27
- Last changed
- 2020-11-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 1 authorising AS47558
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS47558
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 454 networks and 1,854 prefixes, as published 2026-11-06. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere