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Direct Membership

Macros that directly list AS6421 as a member:

AS17978:AS-ALL(4 members)
AS-17117IMPORT(17 members)
AS-HKIX(348 members)
AS7474:AS-CUSTOMERS(385 members)
AS-TMNET-CUSTOMERS(602 members)
AS-LIQUID-EXT(609 members)
AS2764:AS-BGP-CUSTS(786 members)
AS-10099(848 members)
AS-IIJ6(898 members)
AS-OPTUS(1530 members)
AS-GLOBEINTERNET-CLIENTS(1589 members)
AS-IIJ(1639 members)
AS-VSNL-IN(1809 members)
AS58453:AS-ASIAASCUST(2512 members)

Expanded Membership

All macros containing AS6421 (directly or via nested macros): 352

Show 100 macros

AS17978:AS-ALL(4 ASNs)
AS-17117IMPORT(17 ASNs)
AS-LIQUID-EXT(609 ASNs)
AS-10099(848 ASNs)
AS2764:AS-BGP-CUSTS(970 ASNs)
AS2764:AS-ALLCUST(1,020 ASNs)
AS-NEOCOMISP-KH(1,031 ASNs)
AS-SBN-IIG(1,494 ASNs)
AS-IIJ6(2,528 ASNs)
AS-TPG(2,559 ASNs)
AS-4788V6(2,729 ASNs)
AS-TMNET-CUSTOMERS(2,729 ASNs)
AS-4788(2,732 ASNs)
AS-TWIG(2,914 ASNs)
AS-IIJ(3,162 ASNs)
AS-F5(3,824 ASNs)
AS35280:AS-F5(3,830 ASNs)
AS-ACORUS(3,961 ASNs)
AS-BEZEQINT(3,973 ASNs)
AS-SGGS(5,288 ASNs)
AS-FALCORE-AU(5,305 ASNs)
AS-FALCORE-AU-CUST(5,305 ASNs)
AS7474:AS-CUSTOMERS(6,144 ASNs)
AS7474:AS-OPTUS(6,145 ASNs)
AS-LIQUID(6,233 ASNs)
AS-OPTUS(7,043 ASNs)
AS-SH-CUST(7,354 ASNs)
AS-STARHUBINTERNET(7,359 ASNs)
AS-SET-SEACOM(12,587 ASNs)
AS213973:AS-BCIX(13,844 ASNs)
AS213973:AS-PARTNERS(13,844 ASNs)
AS57328:AS-DDIX(13,844 ASNs)
AS59552:AS-SON-IX-RS(13,844 ASNs)
AS2914:AS-SA-V6(14,359 ASNs)
AS2914:AS-SA(14,363 ASNs)
AS-VOXILITY-SET(15,206 ASNs)
AS58453:AS-ASIAASCUST(15,313 ASNs)
AS-RDSNET(16,878 ASNs)
AS-RDSTRANSIT(16,878 ASNs)
AS-MAGYARTELEKOM(17,357 ASNs)
AS-MATAV(17,357 ASNs)
AS-CN2(17,842 ASNs)
AS58453:AS-CMI-ALL(18,020 ASNs)
AS-CMI-ALL(18,021 ASNs)
AS-WIOCC(18,067 ASNs)
AS-STIX(18,626 ASNs)
AS-COMCAST-IBONE(19,609 ASNs)
AS-NOTSURFNET-PEERS(19,650 ASNs)
AS-SEABONECUSTAS(19,767 ASNs)
AS-XO(23,361 ASNs)
AS-VSNL-IN(23,661 ASNs)
AS-FIXO-V6(25,776 ASNs)
AS-RETN-HK(26,343 ASNs)
AS-PITER-IX-FRA(27,939 ASNs)
AS-SET-STHIX-RS(28,136 ASNs)
AS7606:AS-VIC-IX(29,635 ASNs)
AS-FIXO(29,811 ASNs)
AS209861:AS-PEERS(29,811 ASNs)
AS55176:AS-MEMBERS(29,827 ASNs)
AS-DECIX-LIS-V6(32,541 ASNs)
AS43729:AS-DECIX-LIS-V6(32,541 ASNs)
AS-DECIX-ASE(34,557 ASNs)
AS38137:AS-DECIX-ASE(34,557 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-EQUINIX-PA(34,681 ASNs)
AS-DECIX-LIS(34,749 ASNs)
AS43729:AS-DECIX-LIS(34,749 ASNs)
AS-T-CIX(36,150 ASNs)
AS48193:AS-PITER-IX-FRA(36,250 ASNs)
AS30781:AS-JAGUAR-PEERING-EQUINIX-PA(37,230 ASNs)
AS-TORIX(37,868 ASNs)
AS-LSC-IXP-RS(38,302 ASNs)
AS-LSC-IXP(38,312 ASNs)
AS-DECIX-DFW-V6(40,077 ASNs)
AS62499:AS-DECIX-DFW-V6(40,077 ASNs)
AS-LUCIX-RS(40,498 ASNs)
AS-STUIX(41,458 ASNs)
AS-SONIX(41,963 ASNs)
AS-IPTT(42,188 ASNs)
AS-PITER-IX(42,188 ASNs)
AS-PITERIX(42,189 ASNs)
AS-PITER-IX-MSK(42,291 ASNs)
AS49869:AS-PITER-IX-MSK(42,438 ASNs)
AS-DECIX-DFW(43,178 ASNs)
AS62499:AS-DECIX-DFW(43,178 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-FRANCE-IX-MARSEILLE(44,422 ASNs)
AS-RETN6(44,950 ASNs)
AS-ECIX-BER(45,114 ASNs)
AS-TELIANETRU-V6(45,288 ASNs)
AS1299:AS-TWELVE99-RU-V6(45,288 ASNs)
AS30781:AS-JAGUAR-PEERING-FRANCE-IX-MARSEILLE(46,036 ASNs)
AS-ECIX-HAM(46,249 ASNs)
AS7606:AS-NSW-IX(46,591 ASNs)
AS-BROADNETIL(46,931 ASNs)
AS-DIGICOMMPS(46,931 ASNs)
AS7606:AS-ALL(47,090 ASNs)
AS-RETN(47,667 ASNs)
AS-ECIX-MUC(48,469 ASNs)
AS-ECIX-DUS(48,854 ASNs)
AS2914:AS-US-V6(52,836 ASNs)
... and 252 more

Upstream AS Paths

79 unique paths, avg length 2.1

AS Looking Glass

Upstream paths (matching graph above)

AS61573 → AS174 → AS6453 → AS6421
AS35008 → AS1299 → AS6453 → AS6421
AS49544 → AS1299 → AS6453 → AS6421
AS140627 → AS1299 → AS6453 → AS6421
AS2497 → AS6453 → AS6421
AS209823 → AS2914 → AS6453 → AS6421
AS2734 → AS3257 → AS6453 → AS6421
AS398465 → AS3257 → AS6453 → AS6421
AS199524 → AS3356 → AS6453 → AS6421
AS262462 → AS3356 → AS6453 → AS6421
AS2734 → AS6939 → AS6453 → AS6421
AS19653 → AS6939 → AS6453 → AS6421
AS150000 → AS6939 → AS6453 → AS6421
AS8220 → AS6453 → AS6421
AS142271 → AS9304 → AS6453 → AS6421
AS32590 → AS12956 → AS6453 → AS6421
AS25091 → AS6453 → AS6421
AS32590 → AS6453 → AS6421
AS52320 → AS6453 → AS6421
AS199524 → AS6453 → AS6421

All 79 Upstream Paths

Complete list of all observed paths

AS2497 → AS4766 → AS6421
AS7500 → AS2516 → AS4766 → AS6421
AS25091 → AS6762 → AS4766 → AS6421
AS32590 → AS6762 → AS4766 → AS6421
AS199524 → AS6762 → AS4766 → AS6421
AS2500 → AS17676 → AS4766 → AS6421
AS24516 → AS4766 → AS6421
AS6453 → AS6421
AS61573 → AS174 → AS6453 → AS6421
AS1299 → AS6453 → AS6421
AS35008 → AS1299 → AS6453 → AS6421
AS49544 → AS1299 → AS6453 → AS6421
AS140627 → AS1299 → AS6453 → AS6421
AS2497 → AS6453 → AS6421
AS2914 → AS6453 → AS6421
AS209823 → AS2914 → AS6453 → AS6421
AS3257 → AS6453 → AS6421
AS2734 → AS3257 → AS6453 → AS6421
AS398465 → AS3257 → AS6453 → AS6421
AS199524 → AS3356 → AS6453 → AS6421
AS262462 → AS3356 → AS6453 → AS6421
AS3491 → AS6453 → AS6421
AS6939 → AS6453 → AS6421
AS2734 → AS6939 → AS6453 → AS6421
AS19653 → AS6939 → AS6453 → AS6421
AS150000 → AS6939 → AS6453 → AS6421
AS7018 → AS6453 → AS6421
AS8220 → AS6453 → AS6421
AS9002 → AS6453 → AS6421
AS142271 → AS9304 → AS6453 → AS6421
AS32590 → AS12956 → AS6453 → AS6421
AS14315 → AS6453 → AS6421
AS16552 → AS6453 → AS6421
AS17350 → AS6453 → AS6421
AS25091 → AS6453 → AS6421
AS32590 → AS6453 → AS6421
AS37721 → AS6453 → AS6421
AS52320 → AS6453 → AS6421
AS57866 → AS6453 → AS6421
AS132884 → AS6453 → AS6421
AS199524 → AS6453 → AS6421
AS6939 → AS6421
AS293 → AS6939 → AS6421
AS2734 → AS6939 → AS6421
AS11399 → AS6939 → AS6421
AS1221 → AS7474 → AS6421
AS9268 → AS4764 → AS1221 → AS7474 → AS6421
AS58511 → AS2764 → AS7474 → AS6421
AS24516 → AS7474 → AS6421
AS38880 → AS7474 → AS6421
AS132847 → AS7474 → AS6421
AS136557 → AS7474 → AS6421
AS8220 → AS6421
AS7500 → AS2497 → AS8220 → AS6421
AS4826 → AS8220 → AS6421
AS6939 → AS8220 → AS6421
AS142271 → AS9304 → AS8220 → AS6421
AS14537 → AS8220 → AS6421
AS32590 → AS8220 → AS6421
AS49544 → AS8220 → AS6421
AS52320 → AS8220 → AS6421
AS137409 → AS8220 → AS6421
AS142271 → AS9304 → AS6421
AS9507 → AS6421
AS1221 → AS9507 → AS6421
AS9268 → AS4764 → AS9507 → AS6421
AS38880 → AS9507 → AS6421
AS58511 → AS9507 → AS6421
AS136557 → AS9507 → AS6421
AS23673 → AS6421
AS24482 → AS6421
AS38001 → AS6421
AS45352 → AS6421
AS56665 → AS6421
AS132337 → AS6421
AS137409 → AS6421
AS199524 → AS137409 → AS6421
AS140627 → AS6421
AS151326 → AS6421

AS6421 IPv4 Address Subnets (44)

103.16.252.0/23	🇺🇸 US	Tata Communications (CANADA) Ltd. 1555 Carrie-Deri…	AS6421
103.16.254.0/23	🇺🇸 US	Tata Communications (CANADA) Ltd. 1555 Carrie-Deri…	AS6421
115.110.74.0/24	🇺🇸 US	Tata Communications Limited Customer Service & Ope…	AS6421
116.0.66.0/24	🇺🇸 US	CMI (Customer Route)	AS6421
121.240.218.0/24	🇺🇸 US	UCC GMX SG Migration	AS6421
138.104.230.0/24	🇺🇸 US	APNA-DC	AS6421
138.104.231.0/24	🇺🇸 US	APNA-DC	AS6421
14.141.246.0/24	🇺🇸 US	For UCC GMX SG Migration	AS6421
180.87.115.0/24	🇺🇸 US	Tata Communications (CANADA) Ltd. 1555 Carrie-Deri…	AS6453
180.87.119.0/24	🇺🇸 US	Tata Communications (CANADA) Ltd. 1555 Carrie-Deri…	AS6453

AS6421 IPv6 Address Subnets (1)

2405:2001:100::/48

🇺🇸 US

AS6421