ResearchRouting table, RPKI, IRR & looking glass

AS1906 Northrop Grumman

AS1906 (NORTHROP-GRUMMAN) is registered to Northrop Grumman in US. It originates 75 prefixes in the global routing table.

75
IPv4 prefixes
0
IPv6 prefixes
834,304
IPv4 addresses
0%
RPKI valid
Registration

Who holds AS1906

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

AS number
AS1906
Handle
NORTHROP-GRUMMAN
Organization
Northrop Grumman
Country
US
ASPA
None published
Routing

What AS1906 announces

Prefixes originated by AS1906 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
75
IPv6 prefixes
0
IPv4 addresses
834,304 (3,259 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
75
ROAs naming AS1906
0
With an IRR route object
52 69%
Prefixes

Announced prefixes

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

IPv4 (75)
129.4.0.0/16130.124.0.0/16132.228.0.0/16134.223.0.0/16134.223.4.0/22134.223.8.0/22134.223.17.0/24134.223.19.0/24134.223.128.0/20134.223.160.0/20134.223.184.0/22134.223.188.0/22134.223.192.0/19134.223.224.0/19134.223.224.0/22134.223.228.0/23134.223.230.0/24134.223.231.0/24134.223.232.0/24134.223.236.0/22134.223.239.0/24137.51.0.0/16153.113.0.0/16155.104.0.0/16157.127.0.0/16158.114.0.0/16159.4.0.0/16159.201.0.0/16167.225.0.0/17192.31.248.0/24192.35.84.0/24192.45.0.0/16192.45.0.0/19192.83.248.0/24192.86.67.0/24192.86.68.0/24192.86.69.0/24192.86.70.0/24192.86.71.0/24192.86.72.0/24192.86.73.0/24192.86.74.0/24192.86.75.0/24192.86.76.0/24192.107.246.0/24192.112.60.0/24192.112.143.0/24192.112.144.0/24192.112.146.0/24192.112.147.0/24192.135.211.0/24192.135.212.0/24192.150.201.0/24198.17.147.0/24198.49.249.0/24198.180.218.0/24198.202.184.0/24199.26.33.0/24199.26.34.0/24199.26.35.0/24199.26.36.0/24199.26.37.0/24199.26.38.0/24199.26.39.0/24199.26.50.0/24199.36.17.0/24199.165.146.0/24199.165.147.0/24199.165.148.0/24204.118.7.0/24208.1.160.0/20208.12.120.0/24208.12.121.0/24208.12.122.0/24208.20.220.0/24

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS1906 is reached through

The AS just before AS1906 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS7018 ATT-INTERNET4 60
IRR

Routing registry objects

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

Route objects with origin AS1906: LEVEL3 62

as-sets that list AS1906 (3)
AS-LEVEL3-CUSTOMERS-NAAS-LEVEL3-ORIGINS-NAAS15164:AS-CUSTOMERS
Tools

Check AS1906 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup