ResearchRouting table, RPKI, IRR & looking glass

AS6303 Barclays Capital

AS6303 (BARCLAYS-CAPITAL) is registered to Barclays Capital in US. It originates 45 prefixes in the global routing table.

45
IPv4 prefixes
0
IPv6 prefixes
13,824
IPv4 addresses
0%
RPKI valid
Registration

Who holds AS6303

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

AS number
AS6303
Handle
BARCLAYS-CAPITAL
Organization
Barclays Capital
Country
US
ASPA
None published
Routing

What AS6303 announces

Prefixes originated by AS6303 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
45
IPv6 prefixes
0
IPv4 addresses
13,824 (54 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
45
ROAs naming AS6303
0
With an IRR route object
19 42%
Prefixes

Announced prefixes

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

IPv4 (45)
63.78.242.0/24146.127.40.0/22146.127.40.0/23146.127.40.0/24146.127.41.0/24146.127.60.0/23146.127.61.0/24146.127.222.0/23146.127.223.0/24146.127.224.0/20146.127.224.0/21146.127.224.0/24146.127.225.0/24146.127.226.0/24146.127.227.0/24146.127.228.0/24146.127.229.0/24146.127.240.0/21146.127.240.0/22146.127.240.0/24146.127.241.0/24146.127.242.0/24146.127.243.0/24146.127.244.0/22146.127.244.0/24146.127.246.0/24146.127.248.0/21157.83.142.0/24157.83.143.0/24167.203.48.0/22167.203.48.0/23167.203.48.0/24167.203.49.0/24167.203.50.0/23167.203.50.0/24167.203.51.0/24167.203.60.0/23167.203.60.0/24167.203.61.0/24167.203.62.0/23167.203.62.0/24167.203.63.0/24192.107.28.0/24192.147.56.0/23192.147.57.0/24

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS6303 is reached through

The AS just before AS6303 in the paths our looking glass collectors hold, for 45 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK 29AS6461 ZAYO-6461 14AS701 UUNET 14AS14733 AS14733 7
IRR

Routing registry objects

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

Sourceas-nameMaintained by
LEVEL3LehmanMAINT-AS2551

Route objects with origin AS6303: RADB 85 · REACH 12 · LEVEL3 3 · NTTCOM 1

as-sets that list AS6303 (24)
AS-10021ARCSTARAS-ANC-CUSTOMER-PROXY-REGISTERAS-GBLXAS-HKT-AS4515AS-HKT-NETVIGATORAS-ICGAS-IIJAS-KDDAS-KDDCUSTOMER2AS-KORNETBGPAS-LEVEL3-ORIGINS-NAAS-NWN-TRANSITAS-PACNET-CUSTOMER-PROXY-REGISTERAS-PNAPNYCAS-PNAPNYMAS-PNAPTOKAS-PROLEAS-PSINETUS-MCAS-REACH-CUSTOMERSAS-TELSTRA-INTL-CUSTOMERSAS-TVNAS-XO-BAS2497:AS-IIJAS9498:AS-BHARTI-IN
Tools

Check AS6303 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup