ResearchRouting table, RPKI, IRR & looking glass

AS21803 Cedar Networks

AS21803 (CEDAR-NETWORKS) is registered to Cedar Networks in US. It originates 52 prefixes in the global routing table.

52
IPv4 prefixes
0
IPv6 prefixes
13,312
IPv4 addresses
100%
RPKI valid
Registration

Who holds AS21803

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS21803
Handle
CEDAR-NETWORKS
Organization
Cedar Networks
Country
US
ASPA
None published
Routing

What AS21803 announces

Prefixes originated by AS21803 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
52
IPv6 prefixes
0
IPv4 addresses
13,312 (52 /24s)
RPKI valid
52 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS21803
4
With an IRR route object
51 98%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (52)
67.223.160.0/2467.223.161.0/2467.223.162.0/2467.223.163.0/2467.223.164.0/2467.223.165.0/2467.223.167.0/2467.223.168.0/2467.223.169.0/2467.223.170.0/2467.223.171.0/2467.223.174.0/2467.223.175.0/2469.39.0.0/2469.39.1.0/2469.39.2.0/2469.39.3.0/2469.39.4.0/2469.39.5.0/2469.39.6.0/2469.39.7.0/2469.39.8.0/2469.39.9.0/2469.39.10.0/2469.39.13.0/2469.39.14.0/2469.39.15.0/2469.39.16.0/2469.39.19.0/2469.39.21.0/2469.39.22.0/2469.39.23.0/2469.39.24.0/2469.39.25.0/2469.39.26.0/2469.39.27.0/2469.39.28.0/2469.39.29.0/2469.39.30.0/2469.39.31.0/24209.140.0.0/24209.140.2.0/24209.140.4.0/24209.140.5.0/24209.140.7.0/24209.140.8.0/24209.140.9.0/24209.140.11.0/24209.140.12.0/24209.140.13.0/24209.140.14.0/24209.140.15.0/24

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS21803 is reached through

The AS just before AS21803 in the paths our looking glass collectors hold, for 52 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS394195 CLEARNETWORX 32AS32133 AS-TING-BACKBONE 20AS3356 LEVEL3 14AS209 CENTURYLINK-US-LEGACY-QWEST 6
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RADBTF-CEDAR-NETWORKSMAINT-AS394308

Route objects with origin AS21803: RADB 66 · LEVEL3 16

as-sets that list AS21803 (10)
AS-6653AS-FASTT-ALLAS-FASTT-DOWNSTREAMSAS-HURRICANEAS-LEVEL3-CUSTOMERS-NAAS-LEVEL3-ORIGINS-NAAS-LUMEN-CUSTOMERS-ASNSAS-TRANSROUTE-SPECAS-VEROBBAS32133:AS-CUSTOMERS
Tools

Check AS21803 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup