ResearchRouting table, RPKI, IRR & looking glass

AS35891 Norwood Light Broadband

AS35891 (NLB-ASN) is registered to Norwood Light Broadband in US. It originates 6 prefixes in the global routing table.

5
IPv4 prefixes
1
IPv6 prefixes
8,448
IPv4 addresses
83%
RPKI valid

Who holds AS35891

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

AS number
AS35891
Handle
NLB-ASN
Organization
Norwood Light Broadband
Country
US
ASPA
None published

What AS35891 announces

Prefixes originated by AS35891 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
5
IPv6 prefixes
1
IPv4 addresses
8,448 (33 /24s)
RPKI valid
5 83%
RPKI invalid
0
RPKI not found
1
ROAs naming AS35891
5
With an IRR route object
6 100%

Announced prefixes

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

IPv4 (5)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS35891 is reached through

The AS just before AS35891 in the paths our looking glass collectors hold, for 6 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
ARINNorwoodMNT-NLB-1

Route objects with origin AS35891: ALTDB 23 · LEVEL3 23 · RADB 23 · ARIN 6

as-sets that list AS35891 (11)