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AS21704 ASN-21704 - New York City Board of Education

United States · Autonomous System

IPv4 announced

139.8K

0.01 × /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

edge network — no downstream ASes

AS rank

#64,208

by customer-cone size (1 = largest)

Connectivity

1 providers · 0 peers · 0 customers

Transit role

Enterprise / stub

edge network, buys transit only

Upstream providers

Settlement-free peers

Downstream customers

Peering & transit neighbours (CAIDA)

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

Upstream providers1

give this network transit

AS6461 ZAYO-6461 - Zayo Bandwidth

Settlement-free peers0

exchange traffic directly

None recorded.

Downstream customers0

buy transit from it

None recorded.

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

512 of 139.8K routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

3 of 50 prefixes documented

Announcement composition50 routed prefixes

IPv6 deployment

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

IPv6 capable

2.2%

users that can reach IPv6-only content

IPv6 preferred

0.2%

users that use IPv6 when both are offered

Capable2.2%

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

Preferred0.2%

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

Announced prefixes

Currently announced prefixes, live from RIPEstat.

50 prefixes currently seen by RIPEstat.

165.155.104.0/21165.155.134.0/24165.155.174.0/24165.155.182.0/23165.155.217.0/24165.155.160.0/21165.155.160.0/20165.155.152.0/22165.155.128.0/21165.155.192.0/21165.155.166.0/24165.155.184.0/22165.155.168.0/21165.155.176.0/20165.155.142.0/24165.155.232.0/22165.155.208.0/23165.155.150.0/23165.155.154.0/23165.155.32.0/20165.155.212.0/23165.155.228.0/22165.155.176.0/21165.155.216.0/21165.155.186.0/23165.155.64.0/18165.155.224.0/21165.155.136.0/21165.155.20.0/22165.155.173.0/24165.155.175.0/24165.155.96.0/2164.125.58.0/24165.155.152.0/23165.155.133.0/24165.155.236.0/22165.155.141.0/24165.155.64.0/23165.155.184.0/23165.155.128.0/20165.155.135.0/24165.155.165.0/24165.155.225.0/24165.155.220.0/22165.155.48.0/20165.155.167.0/24165.155.143.0/2464.125.59.0/24165.155.16.0/22165.155.0.0/16

Fetching announced prefixes from RIPEstat…