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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

AS4812 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS4812"
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Problem: AS4812 (CHINANET-SH-AP) announces 499 IPv4 and 101 IPv6 prefixes. 1 problem · 3 warnings

AS pageAS4812
HolderCHINANET-SH-AP - China Telecom (Group)
AllocationAPNIC, China (CN), allocated 1996-01-09
Prefixes (IPv4 / IPv6)499 / 101
RPKI valid84% (503 / 600)
Upstreams and peers2

What to fix

  1. Problem

    3 of 600 announced prefixes are RPKI invalid: 43.242.96.0/23, 45.253.26.0/24, 45.253.27.0/24.

    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

    8 of 600 announced prefixes have no ROA (RPKI not found): 43.254.220.0/24, 43.254.221.0/24, 43.254.222.0/24, 43.254.223.0/24, 45.115.144.0/22 (+3).

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

    Fix: Create a ROA for each at your RIR portal, with origin AS4812 and a max length equal to the prefix length:

    43.254.220.0/24 AS4812 max-length /24
43.254.221.0/24 AS4812 max-length /24
43.254.222.0/24 AS4812 max-length /24
43.254.223.0/24 AS4812 max-length /24
45.115.144.0/22 AS4812 max-length /22
45.124.124.0/22 AS4812 max-length /22
61.151.0.0/16 AS4812 max-length /16
61.151.128.0/17 AS4812 max-length /17

    Open in RPKI / ROA validator Guide

  3. Warning

    14 of 600 announced prefixes have no IRR route object: 45.253.26.0/24, 221.133.232.0/24, 180.235.64.0/21, 103.222.40.0/24, 103.116.78.0/24 (+9).

    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 AS4812 in your RIR’s IRR database (or RADB).

    route: 45.253.26.0/24
origin: AS4812

route: 221.133.232.0/24
origin: AS4812

route: 180.235.64.0/21
origin: AS4812

    Open in ASN & BGP prefix lookup

  4. Warning

    PeeringDB did not answer: HTTP 404

    Fix: Try again in a minute.

    Open in PeeringDB lookup

Checks

Routing and RPKI 3 of 600 announced prefixes are RPKI invalid: 43.242.96.0/23, 45.253.26.0/24, 45.253.27.0/24.
  • Pass: AS4812 announces 499 IPv4 and 101 IPv6 prefixes.
  • Problem: 3 of 600 announced prefixes are RPKI invalid: 43.242.96.0/23, 45.253.26.0/24, 45.253.27.0/24.
  • Warning: 8 of 600 announced prefixes have no ROA (RPKI not found): 43.254.220.0/24, 43.254.221.0/24, 43.254.222.0/24, 43.254.223.0/24, 45.115.144.0/22 (+3).
  • Info: 503 of 600 announced prefixes are RPKI valid.
  • Info: The RPKI state of 86 prefixes was not looked up (no ROA of AS4812 covers them; only the first 10 are checked).
  • Warning: 14 of 600 announced prefixes have no IRR route object: 45.253.26.0/24, 221.133.232.0/24, 180.235.64.0/21, 103.222.40.0/24, 103.116.78.0/24 (+9).
  • Info: 2 upstreams and peers, 49 downstream networks seen.
HolderCHINANET-SH-AP - China Telecom (Group)
IPv4 prefixes499
IPv6 prefixes101
RPKI503 valid · 3 invalid · 8 not found · 86 not looked up
Without IRR route object14
Downstream networks49
Routes to fix
PrefixRPKI
43.242.96.0/23 RPKI invalid
45.253.26.0/24 RPKI invalid
45.253.27.0/24 RPKI invalid
43.254.220.0/24 No ROA
43.254.221.0/24 No ROA
43.254.222.0/24 No ROA
43.254.223.0/24 No ROA
45.115.144.0/22 No ROA
45.124.124.0/22 No ROA
61.151.0.0/16 No ROA
61.151.128.0/17 No ROA

Upstreams and peers seen to the left 2

AS4134 China Telecom AS4809 China Telecom / CN2

Announced prefixes 600

36.111.0.0/20 43.240.124.0/24 43.240.192.0/22 43.240.196.0/22 43.242.96.0/23 43.247.100.0/24 43.247.101.0/24 43.247.102.0/24 43.247.103.0/24 43.254.44.0/22 43.254.106.0/24 43.254.152.0/24 43.254.220.0/24 43.254.221.0/24 43.254.222.0/24 43.254.223.0/24 45.115.144.0/22 45.124.124.0/22 45.253.26.0/24 45.253.27.0/24 58.32.0.0/14 58.32.0.0/16 58.32.0.0/17 58.32.128.0/17 58.33.0.0/16 58.33.218.0/24 58.34.0.0/16 58.34.26.0/24 58.34.164.0/24 58.35.0.0/16 58.35.0.0/17 58.35.128.0/17 58.36.0.0/14 58.37.0.0/16 58.38.0.0/16 58.40.0.0/16 58.41.0.0/16 58.41.0.0/17 59.153.92.0/22 61.129.0.0/16 61.129.0.0/17 61.129.128.0/17 61.151.0.0/16 61.151.0.0/17 61.151.128.0/17 61.151.238.0/23 61.152.0.0/16 61.165.0.0/16 61.165.0.0/17 61.165.128.0/17 61.169.0.0/16 61.169.0.0/17 61.169.58.0/24 61.169.128.0/17 61.170.0.0/18 61.170.64.0/18 61.170.128.0/17 61.171.0.0/16 61.171.0.0/17 61.171.128.0/17 61.172.0.0/16 61.173.0.0/16 61.173.0.0/17 61.173.128.0/17 101.80.0.0/13 101.82.0.0/15 101.87.0.0/16 101.88.0.0/13 101.90.0.0/16 101.95.144.0/24 101.95.174.0/24 101.96.10.0/23 101.224.0.0/13 101.226.0.0/16 101.226.186.0/23 101.226.188.0/22 101.226.192.0/22 101.227.0.0/16 101.228.0.0/17 101.228.0.0/19 101.228.32.0/19 101.228.64.0/19 101.228.96.0/19 101.230.0.0/15 101.230.0.0/16 101.230.64.0/18 101.230.80.0/20 101.230.128.0/18 101.230.152.0/24 101.230.155.0/24 101.230.177.0/24 101.230.215.0/24 101.230.226.0/24 101.230.250.0/24 101.230.253.0/24 101.231.0.0/16 101.231.36.0/24 103.5.192.0/23 103.5.194.0/24 103.6.220.0/22

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.
NameCHINANET-SH-AP
HandleAS4812
RangeAS4812
CountryCN
Statusactive
Registered2008-09-04T06:40:30Z
Last changed2020-05-13T04:20:58Z
Abuse contactanti-spam@chinatelecom.cn
Allocation
Registry (RIR)APNIC
CountryChina (CN)
Delegated on1996-01-09
StatusAllocated
Delegated rangeAS4812 – AS4813

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

Contacts
RoleNameEmail
technical Shi Jin shijin@sh163.net
abuse IRT-CHINANET-CN anti-spam@chinatelecom.cn
technical Chen Benyuan cbenyuan@capricorn.sta.net.cn
administrative Wu Xiao Li ipms@shtel.com.cn
technical Gu Xiao Han gxh999@sh163.net

Source: https://rdap.apnic.net/autnum/4812. 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 PeeringDB did not answer: HTTP 404
  • Warning: PeeringDB did not answer: HTTP 404

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup