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

AS21951 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS21951"
JSON Docs

Warning: AS21951 (STOLAF) announces 2 IPv4 and 1 IPv6 prefixes. 2 warnings

AS pageAS21951
HolderSTOLAF - St. Olaf College
AllocationARIN, United States (US), assigned 2001-07-17
Prefixes (IPv4 / IPv6)2 / 1
RPKI valid0% (0 / 3)
Upstreams and peers3

What to fix

  1. Warning

    3 of 3 announced prefixes have no ROA (RPKI not found): 162.210.88.0/22, 199.91.180.0/22, 2620:132:b000::/40.

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

    Fix: Create a ROA for each at your RIR portal, with origin AS21951 and a max length equal to the prefix length:

    162.210.88.0/22 AS21951 max-length /22
199.91.180.0/22 AS21951 max-length /22
2620:132:b000::/40 AS21951 max-length /40

    Open in RPKI / ROA validator Guide

  2. Warning

    PeeringDB did not answer: HTTP 404

    Fix: Try again in a minute.

    Open in PeeringDB lookup

Checks

Routing and RPKI 3 of 3 announced prefixes have no ROA (RPKI not found): 162.210.88.0/22, 199.91.180.0/22, 2620:132:b000::/40.
  • Pass: AS21951 announces 2 IPv4 and 1 IPv6 prefixes.
  • Warning: 3 of 3 announced prefixes have no ROA (RPKI not found): 162.210.88.0/22, 199.91.180.0/22, 2620:132:b000::/40.
  • Pass: Every announced prefix has an IRR route object.
  • Info: 3 upstreams and peers, 0 downstream networks seen.
HolderSTOLAF - St. Olaf College
IPv4 prefixes2
IPv6 prefixes1
RPKI3 not found
Downstream networks0
Routes to fix
PrefixRPKI
162.210.88.0/22 No ROA
199.91.180.0/22 No ROA
2620:132:b000::/40 No ROA

Upstreams and peers seen to the left 3

AS6939 Hurricane Electric AS57 Northern Lights GigaPOP AS15011 Jaguar Communications

Announced prefixes 3

162.210.88.0/22 199.91.180.0/22 2620:132:b000::/40

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.
NameSTOLAF
HandleAS21951
RangeAS21951
Statusactive
Registered2001-07-17T00:00:00-04:00
Last changed2012-03-02T08:03:18-05:00
Abuse contactcdr@stolaf.edu
Allocation
Registry (RIR)ARIN
CountryUnited States (US)
Delegated on2001-07-17
StatusAssigned
Delegated rangeAS21951

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

Contacts
RoleNameEmail
registrant St. Olaf College
technical Craig Rice cdr@stolaf.edu

Source: https://rdap.arin.net/registry/autnum/21951. 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 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