ResearchIRR · RIPE

AS-BT-US BT US customers

An as-set registered in RIPE, maintained by CIP-MNT. It names 20 ASes and 0 sets directly; followed all the way down, it reaches 20 ASes through 0 nested sets.

Members

What AS-BT-US lists

20 ASes and 0 sets, written in the object across every registry that holds it. Sets open their own page.

AS72 SCHLUMBERGER-ASAS78 BA-346-78AS3300 BTAS6095 NIBR-US-DMZAS7246 BMS-ASAS18872 VERITASAS19812 RADIANZ-NUTLEYAS20868 ABBAS22683 PHILIPS-INTERNETAS26478 NOVARTIS-PHARMAAS27000 COTYINCAS27170 QBE-AMERICAS-ORDAS35923 NCHCAS39973 INTERNATIONAL-FLAVORS-AND-FRAGRANCESAS40126 AS-MOLSONCOORSAS40659 BMW-GDCA-ASAS48647 SOLVAYAS212565 SPECSAVERSAS393493 LOTTEBIOLOGICSAS399449 KYNDRYL-POP-ASN
Expanded

Every AS it reaches

What a filter built from AS-BT-US would let in: 20 ASes.

Show the 20 ASes
AS72AS78AS3300AS6095AS7246AS18872AS19812AS20868AS22683AS26478AS27000AS27170AS35923AS39973AS40126AS40659AS48647AS212565AS393493AS399449
Prefixes

What AS-BT-US covers

Every route object in the IRR whose origin is one of the 20 ASes it reaches: the prefixes a filter built from AS-BT-US (with bgpq4, say) would allow. 1,075 IPv4 and 57 IPv6. Every one is in the IRR API.

1,075 IPv4 prefixesthe first 1,000 listed
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57 IPv6 prefixes
2402:fb00:1000::/362402:fb00:1f00::/402402:fb00:2000::/362402:fb00:2f00::/402402:fb00:3000::/362402:fb00:3f00::/402402:fb00::/322402:fb00::/362402:fb00:f00::/402605:3c80:a4e0::/482605:3c80:e001::/482605:3c80:f8::/482605:3c80:f9::/482605:3c80:fb::/482605:3c80:fc::/482605:3c80:fd::/482605:3c80:fe::/482605:3c80:ff::/482606:f100:1000::/362606:f100:1f00::/402606:f100:2000::/362606:f100:2f00::/402606:f100:3000::/362606:f100:3f00::/402606:f100:4000::/362606:f100:4f00::/402606:f100:5000::/362606:f100:5f00::/402606:f100:6000::/362606:f100:7000::/362606:f100:7f00::/402606:f100:8000::/362606:f100:8f00::/402606:f100:9000::/362606:f100::/322606:f100::/362606:f100:a000::/362606:f100:b000::/362606:f100:c000::/362606:f100:f00::/402620:0:1700::/442620:0:1700::/462620:0:1704::/482620:0:1707::/482620:0:1708::/452620:128:f021::/482620:197:202::/482620:197:2c0::/482620:197:300::/482620:197:380::/482620:197:400::/412620:197:400::/482620:197:480::/412620:197:480::/482620:197::/362620:197:c0::/422a02:20e3:100::/48
Registries

Each registry’s copy

RIPE20 membersBT US customers
Maintained byCIP-MNT
Last modified2026-02-26T13:56:09Z
MembersAS3300 AS72 AS78 AS6095 AS7246 AS18872 AS19812 AS20868 AS22683 AS26478 AS27000 AS27170 AS35923 AS39973 AS40126 AS40659 AS48647 AS212565 AS393493 AS399449
mbrs-by-refN
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Sets that include AS-BT-US

AS-BT-GLOBAL
Tools

Check AS-BT-US live

IRR API, with prefixes