ResearchRouting table, RPKI, IRR & looking glass

AS3371 Verizon Business

AS3371 (MCI-ASN) is registered to Verizon Business in US. It originates 31 prefixes in the global routing table.

28
IPv4 prefixes
3
IPv6 prefixes
1,573,888
IPv4 addresses
9%
RPKI valid
Registration

Who holds AS3371

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

AS number
AS3371
Handle
MCI-ASN
Organization
Verizon Business
Country
US
ASPA
None published
Routing

What AS3371 announces

Prefixes originated by AS3371 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
28
IPv6 prefixes
3
IPv4 addresses
1,573,888 (6,148 /24s)
RPKI valid
3 9%
RPKI invalid
0
RPKI not found
28
ROAs naming AS3371
6
With an IRR route object
2 6%
Prefixes

Announced prefixes

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

IPv4 (28)
63.39.0.0/1663.91.192.0/1869.96.0.0/2069.103.0.0/16100.5.64.0/18108.37.128.0/17142.77.8.0/23142.77.10.0/23142.77.72.0/22142.77.76.0/22142.77.80.0/21142.77.88.0/21153.39.96.0/19153.39.128.0/17159.98.0.0/16162.47.152.0/22165.122.48.0/20166.32.0.0/12166.43.0.0/16166.44.248.0/22166.50.0.0/16166.56.0.0/16166.58.0.0/16199.170.112.0/24199.202.116.0/24205.150.160.0/24205.150.162.0/24209.154.224.0/19
IPv6 (3)
2600:80e::/322600:40f2::/322600:40ff:fff1::/48

RPKI valid   RPKI invalid   no ROA covers it

Upstreams

Who AS3371 buys transit from

Inferred from the AS paths in the RouteViews tables, refreshed every 4 hours, most-seen first. 2 upstreams.

AS3378 MCI-ASNAS3372 MCI-ASN
Downstreams

Who buys transit from AS3371

4 downstreams, its customers.

AS3376 MCI-ASNAS3374 MCI-ASNAS3377 MCI-ASNAS3373 MCI-ASN
IRR

Routing registry objects

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

Route objects with origin AS3371: ARIN 5

Tools

Check AS3371 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup