AS15101 — CENTRAL1

AS15101 announces 3 IPv4 prefixes covering 1,536 addresses and 1 IPv6 prefixes.

About this network

The only block that answers in reverse is the one belonging to somebody else.

What it's used for

• A credit union's network. Five IPv4 prefixes and one IPv6 prefix announced from Canada, with three observed BGP neighbours.

Notable

• Three fields spell the holder three ways: the AS handle runs the words together, one netname is the acronym CUCBC, and another writes the whole name out as CENTRAL-1-CREDIT-UNION.
• One announced block is registered to a carrier under the netname BNFD, and it is the only block whose addresses returned reverse names, all under that carrier's domain.
• The other blocks carry a hostmaster contact concatenated into the registrant field with a semicolon.
• Fifteen addresses were queried and three returned a name, all from the carrier's block.

Interesting

• The sampling result is the useful part. A financial network publishes nothing about its own addresses and the carrier publishes address-derived names for the space it leases out, so the only visible names on this AS number describe the supplier rather than the customer.
• An acronym netname on the oldest-looking blocks and the full name on another is the ordinary archaeology of a record maintained over decades by different people. Neither is wrong; nothing reconciles them.
• Three upstreams for fifteen hundred addresses is a lot of transit for the space, which is what a network buys when reachability matters more than volume.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 158.106.102.0/24
• 207.102.240.0/24
• 208.69.252.0/22
• 2620:10d:d004::/47

Upstream networks

• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS13335 Cloudflare, Inc.
• AS21949 Beanfield Technologies Inc.

Adjacent networks

• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS13335 Cloudflare, Inc.
• AS21949 Beanfield Technologies Inc.

Routing security

• RPKI: 1 valid, 0 invalid and 7 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 6 route objects.
• Listed in as-sets: AS-BEANFIELD, AS-EQUINIX-KA, AS-HURRICANEV6, AS-Q9CUSTOMERS, AS-TELSTRA-INTL-CUSTOMERS, AS-TELUS, AS-WINDSTREAM-CUST, AS13335:AS-CUSTOMERS, AS35280:AS-DEFENSE.