Network report
Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.
Checking routing, RPKI, reverse DNS, blocklists and the registry. This usually takes 3 to 10 seconds.
Warning: AS4849 (S3Company S3 Company Ltd) announces 5 IPv4 and 0 IPv6 prefixes. 3 warnings
| AS page | AS4849 |
|---|---|
| Holder | S3Company S3 Company Ltd |
| Allocation | RIPE NCC, Bulgaria (BG), allocated 2008-09-04 |
| Prefixes (IPv4 / IPv6) | 5 / 0 |
| RPKI valid | 60% (3 / 5) |
| Upstreams and peers | 52 |
| Peering policy | Open |
What to fix
-
Warning
No IPv6 prefixes announced.
Networks without IPv6 force their users through NAT64 or leave them unreachable from IPv6-only networks.
Fix: Get an IPv6 allocation from your RIR (usually free with your IPv4 membership) and announce it.
-
Warning
2 of 5 announced prefixes have no ROA (RPKI not found): 46.253.6.0/24, 82.41.122.0/24.
Without a ROA, networks cannot tell your routes from a hijack.
Fix: Create a ROA for each at your RIR portal, with origin AS4849 and a max length equal to the prefix length:
46.253.6.0/24 AS4849 max-length /24 82.41.122.0/24 AS4849 max-length /24
-
Warning
No public NOC, policy or technical contact.
Other networks use these addresses to set up peering and to reach you during an incident.
Fix: Add a role contact (for example noc@ or peering@ an address you monitor) with visibility Public.
Checks
Routing and RPKI No IPv6 prefixes announced.
- Pass: AS4849 announces 5 IPv4 and 0 IPv6 prefixes.
- Warning: No IPv6 prefixes announced.
- Warning: 2 of 5 announced prefixes have no ROA (RPKI not found): 46.253.6.0/24, 82.41.122.0/24.
- Info: 3 of 5 announced prefixes are RPKI valid.
- Pass: Every announced prefix has an IRR route object.
- Info: 52 upstreams and peers, 27 downstream networks seen.
| Holder | S3Company S3 Company Ltd |
|---|---|
| IPv4 prefixes | 5 |
| IPv6 prefixes | 0 |
| RPKI | 3 valid · 2 not found |
| Downstream networks | 27 |
| Prefix | RPKI |
|---|---|
| 46.253.6.0/24 | No ROA |
| 82.41.122.0/24 | No ROA |
Announced prefixes 5
Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru
Open in ASN & BGP prefix lookupRegistration Found at rdap.apnic.net.
- Pass: Found at rdap.apnic.net.
| Name | S3Company |
|---|---|
| Handle | AS4849 |
| Range | AS4849 |
| Status | active |
| Registered | 2025-11-19T15:02:45Z |
| Last changed | 2026-07-10T13:08:58Z |
| Abuse contact | abuse@s3c.bg |
| Registry (RIR) | RIPE NCC |
|---|---|
| Country | Bulgaria (BG) |
| Delegated on | 2008-09-04 |
| Status | Allocated |
| Delegated range | AS4849 |
Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.
| Role | Name | |
|---|---|---|
| registrant | mnt-bg-s3company-1 | |
| registrant | S3 Company Ltd | |
| registrant | RIPE-NCC-END-MNT | |
| administrative, technical | S3 Company - NOC | |
| abuse | Abuse contact role object | abuse@s3c.bg |
Source: https://rdap.apnic.net/autnum/4849. Registration data from rdap.apnic.net, shown under its terms of use (terms): not for marketing or bulk collection.
Open in WHOIS / RDAP lookupPeeringDB No public NOC, policy or technical contact.
- Pass: AS4849 is in PeeringDB as S3 Company.
- Info: Peering policy: Open.
- Info: Present at 20 internet exchanges with 26 ports (1.2T in total).
- Warning: No public NOC, policy or technical contact.
| Network | S3 Company (S3C) |
|---|---|
| AS number | AS4849 |
| Type | , Europe |
| Website | https://www.s3c.bg/ |
| IRR as-set | RIPE::AS4849:AS-S3C |
| Prefixes (IPv4 / IPv6) | 5000 / 500 |
| Traffic | 5-10Tbps, Balanced |
| Peering policy | Open |
| Locations | Not Required |
| Ratio required | No |
| Contracts | Not Required |
| Last updated | 2026-11-09 |
Source: PeeringDB. Results are cached for an hour.
Open in PeeringDB lookup