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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.

IP address, prefix or AS number

AS4758 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS4758"
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Problem: AS4758 (NICNET-VSNL-BOARDER-AP) announces 214 IPv4 and 65 IPv6 prefixes. 1 problem · 2 warnings

AS pageAS4758
HolderNICNET-VSNL-BOARDER-AP - National Informatics Centre
AllocationAPNIC, India (IN), allocated 2010-04-08
Prefixes (IPv4 / IPv6)214 / 65
RPKI valid96% (267 / 279)
Upstreams and peers2
Peering policyOpen

What to fix

  1. Problem

    8 of 279 announced prefixes are RPKI invalid: 164.100.189.0/24, 2001:4408:6d00::/45, 2001:4408:1141::/48, 2001:4408:1180::/44, 2001:4408:6200::/48 (+3).

    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.

    Open in RPKI / ROA validator Guide

  2. Warning

    4 of 279 announced prefixes have no ROA (RPKI not found): 103.58.236.0/24, 103.70.96.0/24, 103.195.208.0/20, 103.195.214.0/23.

    Without a ROA, networks cannot tell your routes from a hijack.

    Fix: Create a ROA for each at your RIR portal, with origin AS4758 and a max length equal to the prefix length:

    103.58.236.0/24 AS4758 max-length /24
103.70.96.0/24 AS4758 max-length /24
103.195.208.0/20 AS4758 max-length /20
103.195.214.0/23 AS4758 max-length /23

    Open in RPKI / ROA validator Guide

  3. Warning

    72 of 279 announced prefixes have no IRR route object: 2001:4408:5250::/48, 2001:4408:7200::/40, 2001:4408:5226::/48, 2001:4408:7a00::/40, 2001:4408:5223::/48 (+67).

    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 AS4758 in your RIR’s IRR database (or RADB).

    route6: 2001:4408:5250::/48
origin: AS4758

route6: 2001:4408:7200::/40
origin: AS4758

route6: 2001:4408:5226::/48
origin: AS4758

    Open in ASN & BGP prefix lookup

Checks

Routing and RPKI 8 of 279 announced prefixes are RPKI invalid: 164.100.189.0/24, 2001:4408:6d00::/45, 2001:4408:1141::/48, 2001:4408:1180::/44, 2001:4408:6200::/48 (+3).
  • Pass: AS4758 announces 214 IPv4 and 65 IPv6 prefixes.
  • Problem: 8 of 279 announced prefixes are RPKI invalid: 164.100.189.0/24, 2001:4408:6d00::/45, 2001:4408:1141::/48, 2001:4408:1180::/44, 2001:4408:6200::/48 (+3).
  • Warning: 4 of 279 announced prefixes have no ROA (RPKI not found): 103.58.236.0/24, 103.70.96.0/24, 103.195.208.0/20, 103.195.214.0/23.
  • Info: 267 of 279 announced prefixes are RPKI valid.
  • Warning: 72 of 279 announced prefixes have no IRR route object: 2001:4408:5250::/48, 2001:4408:7200::/40, 2001:4408:5226::/48, 2001:4408:7a00::/40, 2001:4408:5223::/48 (+67).
  • Info: 2 upstreams and peers, 5 downstream networks seen.
HolderNICNET-VSNL-BOARDER-AP - National Informatics Centre
IPv4 prefixes214
IPv6 prefixes65
RPKI267 valid · 8 invalid · 4 not found
Without IRR route object72
Downstream networks5
Routes to fix
PrefixRPKI
164.100.189.0/24 RPKI invalid
2001:4408:6d00::/45 RPKI invalid
2001:4408:1141::/48 RPKI invalid
2001:4408:1180::/44 RPKI invalid
2001:4408:6200::/48 RPKI invalid
2001:4408:6220::/48 RPKI invalid
45.118.52.0/24 RPKI invalid
45.249.124.0/22 RPKI invalid
103.58.236.0/24 No ROA
103.70.96.0/24 No ROA
103.195.208.0/20 No ROA
103.195.214.0/23 No ROA

Upstreams and peers seen to the left 2

AS9885 NKN Internet Gateway AS55824 NKN Core Network

Announced prefixes 279

14.139.15.0/24 43.239.62.0/24 45.118.16.0/22 45.118.20.0/22 45.118.24.0/22 45.118.28.0/22 45.118.52.0/24 45.127.75.0/24 45.249.124.0/22 103.58.236.0/24 103.70.96.0/24 103.70.97.0/24 103.195.208.0/20 103.195.208.0/24 103.195.209.0/24 103.195.210.0/24 103.195.211.0/24 103.195.212.0/24 103.195.213.0/24 103.195.214.0/23 103.195.214.0/24 103.195.215.0/24 103.195.216.0/24 103.195.217.0/24 103.195.218.0/24 103.195.219.0/24 103.195.221.0/24 103.195.222.0/24 103.195.223.0/24 103.207.128.0/24 103.207.129.0/24 103.207.130.0/24 137.59.128.0/24 137.59.129.0/24 164.100.0.0/16 164.100.0.0/17 164.100.0.0/19 164.100.0.0/20 164.100.1.0/24 164.100.2.0/24 164.100.3.0/24 164.100.4.0/24 164.100.5.0/24 164.100.6.0/24 164.100.8.0/24 164.100.9.0/24 164.100.10.0/24 164.100.11.0/24 164.100.12.0/24 164.100.13.0/24 164.100.14.0/24 164.100.15.0/24 164.100.16.0/20 164.100.17.0/24 164.100.22.0/24 164.100.25.0/24 164.100.26.0/24 164.100.28.0/24 164.100.30.0/24 164.100.31.0/24 164.100.32.0/19 164.100.32.0/20 164.100.32.0/24 164.100.33.0/24 164.100.34.0/24 164.100.39.0/24 164.100.41.0/24 164.100.42.0/24 164.100.43.0/24 164.100.44.0/24 164.100.45.0/24 164.100.46.0/24 164.100.47.0/24 164.100.48.0/20 164.100.48.0/24 164.100.50.0/24 164.100.51.0/24 164.100.52.0/24 164.100.53.0/24 164.100.54.0/23 164.100.56.0/24 164.100.58.0/24 164.100.59.0/24 164.100.60.0/24 164.100.61.0/24 164.100.64.0/19 164.100.64.0/20 164.100.65.0/24 164.100.68.0/24 164.100.69.0/24 164.100.70.0/24 164.100.71.0/24 164.100.72.0/23 164.100.72.0/24 164.100.73.0/24 164.100.74.0/24 164.100.75.0/24 164.100.77.0/24 164.100.78.0/24 164.100.79.0/24

Showing the first 100.

Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru

Open in ASN & BGP prefix lookup
Registration Found at rdap.apnic.net.
  • Pass: Found at rdap.apnic.net.
NameNICNET-VSNL-BOARDER-AP
HandleAS4758
RangeAS4758
CountryIN
Statusactive
Registered2016-10-21T03:52:40Z
Last changed2025-07-31T04:59:07Z
Abuse contactabuse@nic.in
Allocation
Registry (RIR)APNIC
CountryIndia (IN)
Delegated on2010-04-08
StatusAllocated
Delegated rangeAS4758

Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.

Contacts
RoleNameEmail
administrative NIC - Network Administrator support@nic.in
registrant National Informatics Centre gaurav.kansal@nic.in
abuse IRT-NATIONALINFO-IN abuse@nic.in
technical GAURAV KANSAL GAURAV.KANSAL@NIC.IN

Source: https://rdap.apnic.net/autnum/4758. Registration data from rdap.apnic.net, shown under its terms of use (terms): not for marketing or bulk collection.

Open in WHOIS / RDAP lookup
PeeringDB AS4758 is in PeeringDB as National Informatics Centre India.
  • Pass: AS4758 is in PeeringDB as National Informatics Centre India.
  • Info: Peering policy: Open.
  • Info: No internet exchange ports are listed.
NetworkNational Informatics Centre India
AS numberAS4758
TypeNon-Profit, Asia Pacific
Websitehttp://www.nic.in
IRR as-setAPNIC::AS-NIC-NKN-BGP-PEERS
Prefixes (IPv4 / IPv6)16 / 32
Traffic50-100Gbps, Balanced
Peering policyOpen
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-11-02
Contacts
Abuseabuse@nic.in
NOCsupport@nic.in

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup