Skip to content
thenetworkery

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.

IP address, prefix or AS number

AS17511 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS17511"
JSON Docs

Warning: AS17511 (OPTAGE) announces 66 IPv4 and 2 IPv6 prefixes. 3 warnings

AS pageAS17511
HolderOPTAGE - OPTAGE Inc.
AllocationAPNIC, Japan (JP), allocated 2000-12-12
Prefixes (IPv4 / IPv6)66 / 2
RPKI valid62% (42 / 68)
Upstreams and peers25
Peering policySelective

What to fix

  1. Warning

    10 of 68 announced prefixes have no ROA (RPKI not found): 103.65.208.0/22, 103.95.206.0/24, 103.97.232.0/22, 103.97.236.0/22, 103.99.124.0/22 (+5).

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

    Fix: Create a ROA for each at your RIR portal, with origin AS17511 and a max length equal to the prefix length:

    103.65.208.0/22 AS17511 max-length /22
103.95.206.0/24 AS17511 max-length /24
103.97.232.0/22 AS17511 max-length /22
103.97.236.0/22 AS17511 max-length /22
103.99.124.0/22 AS17511 max-length /22
103.112.180.0/22 AS17511 max-length /22
103.116.152.0/22 AS17511 max-length /22
103.124.200.0/22 AS17511 max-length /22
103.142.132.0/23 AS17511 max-length /23
103.199.132.0/22 AS17511 max-length /22

    Open in RPKI / ROA validator Guide

  2. Warning

    No abuse contact is published for AS17511.

    Other networks send reports of spam, attacks and hacked machines to the abuse contact. Without one, reports go nowhere and blocklists may list the whole range.

    Fix: Add an abuse contact to the registration: abuse-c in the RIPE database, an Abuse POC at ARIN, an abuse mailbox (IRT) at APNIC, AFRINIC or LACNIC.

    Open in WHOIS / RDAP lookup

  3. 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.

    Open in PeeringDB lookup

Checks

Routing and RPKI 10 of 68 announced prefixes have no ROA (RPKI not found): 103.65.208.0/22, 103.95.206.0/24, 103.97.232.0/22, 103.97.236.0/22, 103.99.124.0/22 (+5).
  • Pass: AS17511 announces 66 IPv4 and 2 IPv6 prefixes.
  • Warning: 10 of 68 announced prefixes have no ROA (RPKI not found): 103.65.208.0/22, 103.95.206.0/24, 103.97.232.0/22, 103.97.236.0/22, 103.99.124.0/22 (+5).
  • Info: 42 of 68 announced prefixes are RPKI valid.
  • Info: The RPKI state of 16 prefixes was not looked up (no ROA of AS17511 covers them; only the first 10 are checked).
  • Pass: Every announced prefix has an IRR route object.
  • Info: 25 upstreams and peers, 10 downstream networks seen.
HolderOPTAGE - OPTAGE Inc.
IPv4 prefixes66
IPv6 prefixes2
RPKI42 valid · 10 not found · 16 not looked up
Downstream networks10
Routes to fix
PrefixRPKI
103.65.208.0/22 No ROA
103.95.206.0/24 No ROA
103.97.232.0/22 No ROA
103.97.236.0/22 No ROA
103.99.124.0/22 No ROA
103.112.180.0/22 No ROA
103.116.152.0/22 No ROA
103.124.200.0/22 No ROA
103.142.132.0/23 No ROA
103.199.132.0/22 No ROA

Upstreams and peers seen to the left 25

AS2497 Internet Initiative Japan AS4637 Telstra (International) AS2516 KDDI AS6939 Hurricane Electric AS9002 RETN AS174 Cogent Communications, Inc. AS5405 Inter.link AS2914 NTT Global IP Network AS50629 LWLcom AS3356 Lumen AS3356 AS8220 Colt AS39351 31173 Services

Announced prefixes 68

58.70.0.0/16 58.188.0.0/14 58.189.176.0/20 59.190.0.0/16 60.56.0.0/16 60.57.0.0/17 60.57.128.0/17 61.122.240.0/20 61.195.96.0/19 61.205.0.0/20 61.205.80.0/20 61.205.96.0/20 61.205.112.0/20 61.213.128.0/20 101.140.0.0/14 103.65.208.0/22 103.84.124.0/22 103.95.206.0/24 103.97.232.0/22 103.97.236.0/22 103.99.124.0/22 103.112.180.0/22 103.116.152.0/22 103.124.200.0/22 103.142.132.0/23 103.199.132.0/22 112.68.0.0/14 119.228.0.0/14 121.80.0.0/14 121.84.0.0/14 122.100.24.0/21 128.22.0.0/16 128.27.0.0/16 138.248.64.0/22 150.57.0.0/16 150.66.0.0/16 158.198.0.0/16 160.25.92.0/23 160.233.0.0/16 180.144.0.0/14 182.164.0.0/14 192.51.144.0/21 202.8.48.0/20 202.19.159.0/24 202.26.228.0/24 202.26.229.0/24 202.26.230.0/24 202.26.231.0/24 202.34.10.0/23 202.34.12.0/23 202.60.32.0/20 202.62.253.0/24 202.216.48.0/20 202.223.48.0/22 202.244.138.0/23 203.140.64.0/19 203.175.80.0/20 210.199.80.0/20 218.42.192.0/18 218.45.96.0/20 218.228.128.0/17 218.251.0.0/17 219.75.128.0/17 219.100.52.0/22 219.122.32.0/19 219.122.128.0/17 2001:ce8:90::/44 2001:ce8::/32

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

Open in ASN & BGP prefix lookup
Registration No abuse contact is published for AS17511.
  • Pass: Found at rdap.apnic.net.
  • Warning: No abuse contact is published for AS17511.
NameOPTAGE
HandleAS17511
RangeAS17511
CountryJP
Statusactive
Last changed2019-04-18T21:02:43Z
Allocation
Registry (RIR)APNIC
CountryJapan (JP)
Delegated on2000-12-12
StatusAllocated
Delegated rangeAS17503 – AS17534

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

Contacts
RoleNameEmail
administrative, technical Japan Network Information Center hostmaster@nic.ad.jp
administrative, technical JP00014196

Source: https://rdap.apnic.net/autnum/17511. 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 No public NOC, policy or technical contact.
  • Pass: AS17511 is in PeeringDB as OPTAGE.
  • Info: Peering policy: Selective.
  • Info: Present at 15 internet exchanges with 17 ports (1.9T in total).
  • Warning: No public NOC, policy or technical contact.
NetworkOPTAGE (eo)
AS numberAS17511
TypeCable/DSL/ISP, Regional
Websitehttps://optage.co.jp/en/
IRR as-setRADB::AS-EO
Prefixes (IPv4 / IPv6)500 / 25
Traffic1-5Tbps, Heavy Inbound
Peering policySelective
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-10-16

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup