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.
Problem: AS55824 (NKN-CORE-NW) announces 177 IPv4 and 88 IPv6 prefixes. 1 problem · 3 warnings
| AS page | AS55824 |
|---|---|
| Holder | NKN-CORE-NW - NKN Core Network |
| Allocation | APNIC, India (IN), allocated 2010-10-19 |
| Prefixes (IPv4 / IPv6) | 177 / 88 |
| RPKI valid | 98% (260 / 265) |
| Upstreams and peers | 2 |
| Peering policy | Open |
What to fix
-
Problem
3 of 265 announced prefixes are RPKI invalid: 2001:4408:5b01::/48, 2405:8a00:2052::/48, 2403:c380:1::/48.
A ROA covers them but does not allow this origin or prefix length, so networks that filter (most large ones do) drop these routes.
Fix: Fix the ROAs (origin AS and max length) at your RIR, or stop announcing the routes.
-
Warning
2 of 265 announced prefixes have no ROA (RPKI not found): 103.194.27.0/24, 2403:89c0::/32.
Without a ROA, networks cannot tell your routes from a hijack.
Fix: Create a ROA for each at your RIR portal, with origin AS55824 and a max length equal to the prefix length:
103.194.27.0/24 AS55824 max-length /24 2403:89c0::/32 AS55824 max-length /32
-
Warning
11 of 265 announced prefixes have no IRR route object: 2403:c380:1::/48, 2001:4408:4d08::/48, 2403:89c0::/32, 2001:4408:4300::/45, 2405:8a00:2052::/48 (+6).
Many networks build their prefix filters from IRR data; without route objects some of them drop the routes.
Fix: Create route (IPv4) and route6 (IPv6) objects with origin AS55824 in your RIR’s IRR database (or RADB).
route6: 2403:c380:1::/48 origin: AS55824 route6: 2001:4408:4d08::/48 origin: AS55824 route6: 2403:89c0::/32 origin: AS55824
-
Warning
No IRR as-set is listed.
Peers and route servers build prefix filters from the as-set. Without one they fall back to the AS number alone, which breaks as soon as you have customers.
Fix: Create an as-set in your RIR’s IRR database and add it to your PeeringDB record.
Checks
Routing and RPKI 3 of 265 announced prefixes are RPKI invalid: 2001:4408:5b01::/48, 2405:8a00:2052::/48, 2403:c380:1::/48.
- Pass: AS55824 announces 177 IPv4 and 88 IPv6 prefixes.
- Problem: 3 of 265 announced prefixes are RPKI invalid: 2001:4408:5b01::/48, 2405:8a00:2052::/48, 2403:c380:1::/48.
- Warning: 2 of 265 announced prefixes have no ROA (RPKI not found): 103.194.27.0/24, 2403:89c0::/32.
- Info: 260 of 265 announced prefixes are RPKI valid.
- Warning: 11 of 265 announced prefixes have no IRR route object: 2403:c380:1::/48, 2001:4408:4d08::/48, 2403:89c0::/32, 2001:4408:4300::/45, 2405:8a00:2052::/48 (+6).
- Info: 2 upstreams and peers, 80 downstream networks seen.
| Holder | NKN-CORE-NW - NKN Core Network |
|---|---|
| IPv4 prefixes | 177 |
| IPv6 prefixes | 88 |
| RPKI | 260 valid · 3 invalid · 2 not found |
| Without IRR route object | 11 |
| Downstream networks | 80 |
| Prefix | RPKI |
|---|---|
| 2001:4408:5b01::/48 | RPKI invalid |
| 2405:8a00:2052::/48 | RPKI invalid |
| 2403:c380:1::/48 | RPKI invalid |
| 103.194.27.0/24 | No ROA |
| 2403:89c0::/32 | No ROA |
Upstreams and peers seen to the left 2
Announced prefixes 265
Showing the first 100.
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 | NKN-CORE-NW |
|---|---|
| Handle | AS55824 |
| Range | AS55824 |
| Country | IN |
| Status | active |
| Registered | 2010-10-19T06:23:08Z |
| Last changed | 2026-07-10T05:24:01Z |
| Abuse contact | abuseteam@nkn.in |
| Registry (RIR) | APNIC |
|---|---|
| Country | India (IN) |
| Delegated on | 2010-10-19 |
| Status | Allocated |
| Delegated range | AS55824 |
Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.
| Role | Name | |
|---|---|---|
| administrative | NKN - Network Administrator | support@nkn.in |
| registrant | National Knowledge Network | gaurav.kansal@nic.in |
| abuse | IRT-GAURAVKANSAL | abuseteam@nkn.in |
| technical | GAURAV KANSAL | GAURAV.KANSAL@NIC.IN |
Source: https://rdap.apnic.net/autnum/55824. 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 IRR as-set is listed.
- Pass: AS55824 is in PeeringDB as NKN Core Network.
- Info: Peering policy: Open.
- Info: No internet exchange ports are listed.
- Warning: No IRR as-set is listed.
| Network | NKN Core Network |
|---|---|
| AS number | AS55824 |
| Type | , Not Disclosed |
| Website | https://nkn.gov.in/ |
| Traffic | Not Disclosed |
| Peering policy | Open |
| Locations | Not Required |
| Ratio required | No |
| Contracts | Not Required |
| Last updated | 2025-07-21 |
| Technical | gaurav.kansal@nic.in |
|---|---|
| Abuse | abuse@nkn.in |
| NOC | support@nkn.in |
| Policy | gaurav.kansal@nic.in |
Source: PeeringDB. Results are cached for an hour.
Open in PeeringDB lookup