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AS6389 BELLSOUTH-NET-BLK - AT&T Enterprises, LLC

United States · Autonomous System

IPv4 announced

4.5M

0.27 × /8

IPv6 announced

/48 blocks

Prefixes

routed

Country

United States

Topology (CAIDA AS Rank)

The network's position in the inter-domain routing hierarchy: its customer cone, connectivity, and transit role.

Customer cone

ASes reachable as customers

AS rank

#11,984

by customer-cone size (1 = largest)

Connectivity

1 providers · 0 peers · 1 customers

Transit role

access

CAIDA transit classification

Upstream providers

Settlement-free peers

Downstream customers

Peering & transit neighbours (CAIDA)

Inferred AS-level relationships: 1 upstream providers, 0 peers and 1 downstream customers. The graph shows the largest few of each; the lists link through.

Upstream providers1

give this network transit

AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC

Settlement-free peers0

exchange traffic directly

None recorded.

Downstream customers1

buy transit from it

AS11712 BELLSOUTH - AT&T Services, Inc.

Relationships are inferred from BGP by CAIDA and refreshed monthly. Transit links are well captured; some private and IXP peering is under-observed, so peer counts are a lower bound.

Routing hygiene & RPKI

How well this network secures and documents its BGP announcements — RPKI origin validation, IRR registration, and an overall hygiene score.

Hygiene score

0–100 · RPKI × IRR × consistency

RPKI coverage

29%

1.3M of 4.5M routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

19%

10 of 54 prefixes documented

Announcement composition54 routed prefixes

IPv6 deployment

Measured share of this network's users reaching the Internet over IPv6 (APNIC end-user measurement, United States).

IPv6 capable

85.2%

users that can reach IPv6-only content

IPv6 preferred

84.3%

users that use IPv6 when both are offered

Capable85.2%

Has working IPv6 connectivity, even if it isn't always chosen.

Preferred84.3%

IPv6 wins when a destination is dual-stacked — the real-world usage rate.

Announced prefixes

Currently announced prefixes, live from RIPEstat.

54 prefixes currently seen by RIPEstat.

74.238.0.0/1668.214.0.0/1672.151.0.0/1674.164.0.0/1668.16.0.0/1568.208.0.0/1674.169.0.0/1670.150.0.0/16208.60.0.0/14209.147.227.0/2472.149.0.0/16205.152.0.0/1665.81.0.0/1698.72.0.0/1665.83.236.0/2274.251.0.0/1665.14.0.0/1612.130.209.0/2472.156.0.0/1468.222.0.0/1665.82.0.0/1665.83.0.0/16209.147.248.0/2474.246.0.0/1668.216.0.0/1674.247.0.0/1674.172.0.0/1670.151.0.0/1674.228.0.0/1674.174.0.0/16209.149.0.0/1670.147.0.0/1668.213.0.0/1674.252.0.0/14207.203.0.0/16216.76.0.0/1474.165.0.0/1674.239.0.0/1665.15.0.0/1674.191.0.0/1670.158.0.0/1566.20.0.0/1574.168.0.0/1668.156.0.0/1574.231.0.0/1698.78.0.0/1565.13.0.0/1667.33.0.0/1674.175.0.0/1668.152.0.0/1567.32.0.0/1670.148.0.0/1665.5.0.0/1670.154.0.0/15

Fetching announced prefixes from RIPEstat…