ResearchRouting table, RPKI, IRR & looking glass

AS207900 Northrop Grumman UK Limited

AS207900 (uk_northrop_2) is registered to Northrop Grumman UK Limited in GB. It originates 2 prefixes in the global routing table.

2
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
100%
RPKI valid

Who holds AS207900

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

AS number
AS207900
Handle
uk_northrop_2
Organization
Northrop Grumman UK Limited
Country
GB
ASPA
None published

What AS207900 announces

Prefixes originated by AS207900 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
2
IPv6 prefixes
0
IPv4 addresses
512 (2 /24s)
RPKI valid
2 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS207900
2
With an IRR route object
2 100%

Announced prefixes

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

IPv4 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS207900 is reached through

The AS just before AS207900 in the paths our looking glass collectors hold, for 2 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

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

Sourceas-nameMaintained by
RIPEuk_northrop_2RIPE-NCC-END-MNT, SYSTEMSEURODLNETWORK

Route objects with origin AS207900: RADB 2 · RIPE 2

as-sets that list AS207900 (2)