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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

AS20476 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS20476"
JSON Docs

Warning: AS20476 (RESERVED-IPADMIN) announces nothing right now. 2 warnings

AS pageAS20476
HolderRESERVED-IPADMIN - Level 3 Parent, LLC
AllocationARIN, United States (US), assigned 2001-05-11
Prefixes (IPv4 / IPv6)0 / 0

What to fix

  1. 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.

    Open in PeeringDB lookup

  2. 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 AS20476 is not announcing anything right now.
  • Info: AS20476 is not announcing anything right now.
HolderRESERVED-IPADMIN - Level 3 Parent, LLC
IPv4 prefixes0
IPv6 prefixes0
Downstream networks0

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

Open in ASN & BGP prefix lookup
Registration Found at rdap.arin.net.
  • Pass: Found at rdap.arin.net.
NameRESERVED-IPADMIN
HandleAS20476
RangeAS20476
Statusactive
Registered2001-05-11T00:00:00-04:00
Last changed2021-10-14T18:23:03-04:00
Abuse contactabuse@level3.com
Allocation
Registry (RIR)ARIN
CountryUnited States (US)
Delegated on2001-05-11
StatusAssigned
Delegated rangeAS20476

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

Contacts
RoleNameEmail
registrant Level 3 Parent, LLC

Source: https://rdap.arin.net/registry/autnum/20476. Registration data from rdap.arin.net, shown under its terms of use (terms): not for marketing or bulk collection.

Open in WHOIS / RDAP lookup
PeeringDB No IRR as-set is listed.
  • Pass: AS20476 is in PeeringDB as RESERVED-IPADMIN.
  • Info: No internet exchange ports are listed.
  • Warning: No IRR as-set is listed.
  • Warning: No public NOC, policy or technical contact.
NetworkRESERVED-IPADMIN
AS numberAS20476
Type, Not Disclosed
TrafficNot Disclosed
Ratio requiredNo
Last updated2026-07-03

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup