AS3557 — ISC F-ROOT ISC F-Root originating AS
AS Name: ISC-F-ROOT
Description: Internet Systems Consortium, Inc.
Registry: RADB
aut-num: AS3557
as-name: ISC-F-ROOT
descr: Internet Systems Consortium, Inc.
admin-c: ISC-NOC
tech-c: ISC-NOC
remarks: This ASN is used to source advertisements of F-Root prefixes.
remarks: Peering ASNs vary per location, 3557 will never peer directly.
remarks: Please see http://f.root-servers.org/ for more information.
remarks: Peering info is at http://www.isc.org/community/peering/
remarks: Trouble reports to noc@isc.org, phone +1 650 423 1310
remarks: Abuse to abuse@isc.org.
mnt-by: MAINT-AS1280
changed: ekb@isc.org 20200312 #10:58:30Z
source: RADB
last-modified: 2023-11-13T16:00:10Z
Direct Membership
Macros that directly list AS3557 as a member:
AS30511:AS-SET(1 members)
AS-ISC-OAK1(2 members)
AS33082:AS-SET(2 members)
AS53459:AS-SET(2 members)
AS33077:AS-SET(2 members)
AS33081:AS-SET(2 members)
AS33073:AS-SET(2 members)
AS30130:AS-SET(2 members)
AS30124:AS-SET(2 members)
AS33079:AS-SET(2 members)
AS30126:AS-SET(2 members)
AS33071:AS-SET(4 members)
AS394070:AS-SET(4 members)
AS1280:AS-SET(5 members)
AS-CZNIC-NIX(12 members)
AS30071:AS-TBONE(14 members)
AS-CZNIC-TRANSIT(15 members)
AS-EUNIC-IX(31 members)
AS-HKTPEER(37 members)
AS-NICBR-CUST(41 members)
AS-SOX-SRB(44 members)
AS174:AS-COGC-022(47 members)
AS-CTBC-CUSTOMERS116(49 members)
AS-4648-PAIX-PEER(50 members)
AS-CTBC-CUSTOMERS23(50 members)
AS4470:AS-TORIX-PEERS(73 members)
AS-REACH-PEERS(76 members)
AS-SOX(76 members)
AS-RENATER(99 members)
AS-NEXICOM(122 members)
AS-ANTEL-ALL(167 members)
AS-KINX-TRANSIT(196 members)
AS-HRHINET(201 members)
AS38040:AS-CUSTOMERS(233 members)
AS-SEEDNET(240 members)
AS-TMNET-PEERS(271 members)
AS-CBN(324 members)
AS-MFNX(421 members)
AS7606:AS-QLD-IX(434 members)
AS-BBIX-T-V6(683 members)
AS-BBIX-T(877 members)
AS45147:AS-NAPINFO-IPT(930 members)
AS-GNT-CUSTOMERS(1312 members)
AS13335:AS-CUSTOMERS(1521 members)
AS-HWNG-DOWNSTREAMS(2599 members)
AS1239:AS-CUSTOMERS(4238 members)
AS-REACH-CUSTOMERS(8210 members)
AS-TELSTRA-INTL-CUSTOMERS(11248 members)
AS-TRANSROUTE-SPEC(19556 members)
AS-HURRICANEV6(20402 members)
... and 1 more
Expanded Membership
All macros containing AS3557 (directly or via nested macros): 551
Show 100 macros
AS30511:AS-SET(1 ASNs)
AS-ISC-OAK1(2 ASNs)
AS30124:AS-SET(2 ASNs)
AS30126:AS-SET(2 ASNs)
AS30130:AS-SET(2 ASNs)
AS33073:AS-SET(2 ASNs)
AS33077:AS-SET(2 ASNs)
AS33079:AS-SET(2 ASNs)
AS33081:AS-SET(2 ASNs)
AS33082:AS-SET(2 ASNs)
AS53459:AS-SET(2 ASNs)
AS33071:AS-SET(4 ASNs)
AS394070:AS-SET(4 ASNs)
AS1280:AS-SET(5 ASNs)
AS-CZNIC-NIX(12 ASNs)
AS-CZNIC-TRANSIT(15 ASNs)
AS-HKTPEER(37 ASNs)
AS-CZECHBONE(45 ASNs)
AS174:AS-COGC-022(47 ASNs)
AS-CTBC-CUSTOMERS116(49 ASNs)
AS-4648-PAIX-PEER(50 ASNs)
AS-CTBC-CUSTOMERS23(50 ASNs)
AS-BLUETONE-CUST(52 ASNs)
AS-CRA(52 ASNs)
AS-CRA-CZNIX(52 ASNs)
AS-NICBR-CUST(52 ASNs)
AS-JINX-OPS(56 ASNs)
AS-NICBR-ALL(56 ASNs)
AS-CASABLANCA-TRANSIT(61 ASNs)
AS-CASABLANCA-NIX(62 ASNs)
AS-RIOMEDIA-NIXCZ(63 ASNs)
AS-NEJCZ-NIXCZ(65 ASNs)
AS-NEJCZ-TRANSIT(65 ASNs)
AS-O2CZSEC(69 ASNs)
AS-EUNIC-IX(70 ASNs)
AS-REACH-PEERS(76 ASNs)
AS-AGILESP(85 ASNs)
AS-RENATER(99 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-SFINX(99 ASNs)
AS-BR-IX-RS(102 ASNs)
AS-NEXICOM(122 ASNs)
AS-KAORA-TRANSIT(176 ASNs)
AS-DIALTELECOM(183 ASNs)
AS-DIALTELECOM-SIX(186 ASNs)
AS-CTIOL(192 ASNs)
AS-KINX-TRANSIT(196 ASNs)
AS-KAORA-PEERING(204 ASNs)
AS30781:AS-JAGUAR-PEERING-SFINX(231 ASNs)
AS38040:AS-CUSTOMERS(233 ASNs)
AS-COMSOURCE(255 ASNs)
AS-TMNET-PEERS(271 ASNs)
AS-SEEDNET(279 ASNs)
AS-HRHINET(386 ASNs)
AS30071:AS-TBONE(386 ASNs)
AS-SET-GTI-PIP-CUSTOMERS-CUSTOMER(432 ASNs)
AS-CBN(498 ASNs)
AS-SUPERNETWORK(515 ASNs)
AS6774:AS-BICS-CUST(588 ASNs)
AS-GEANT-EUPEER(640 ASNs)
AS-SET-GTI-CUSTOMERS-CUSTOMER(670 ASNs)
AS-BBIX-T-V6(683 ASNs)
AS-GEANTNRN(722 ASNs)
AS3267:AS-NREN(722 ASNs)
AS-BELBONE(742 ASNs)
AS-BELBONEMEMBERS(742 ASNs)
AS-BELGACOMFRANCETOPEERS(742 ASNs)
AS-GIGAINFRA-V6(833 ASNs)
AS-SET-GTI-PIP(872 ASNs)
AS-BBIX-T(877 ASNs)
AS-ANTEL-ALL(906 ASNs)
AS-NORDUNET(934 ASNs)
AS-365NET-RIX(985 ASNs)
AS-SET-GTI(1,036 ASNs)
AS-NAPCBN(1,248 ASNs)
AS-GIGAINFRA(1,276 ASNs)
AS-GNT-CUSTOMERS(1,312 ASNs)
AS-GNT(1,313 ASNs)
AS13335:AS-CUSTOMERS(1,521 ASNs)
AS45147:AS-NAPINFO-IPT(1,575 ASNs)
AS174:AS-COGENT(1,618 ASNs)
AS-GBXSCUST-FULL(1,996 ASNs)
AS-TDCNETEU(1,998 ASNs)
AS-SWCMCUSTOMERS(2,044 ASNs)
AS3303:AS-SWCMCUSTOMERS(2,044 ASNs)
AS30781:AS-JAGUAR-PEERING-LYONIX(2,213 ASNs)
AS-GBXSCUST(2,370 ASNs)
AS-HWNG-DOWNSTREAMS(2,598 ASNs)
AS-FASTWEB-GLOBAL(2,641 ASNs)
AS-HWNG-CUSTOMERS(2,646 ASNs)
AS-HIGHWINDS(2,647 ASNs)
AS-HWNG-ALT(2,647 ASNs)
AS-GBXS(2,661 ASNs)
AS-TDCNET(2,713 ASNs)
AS-TDCNET-IPV6(2,713 ASNs)
AS-HWNG(2,717 ASNs)
AS-BT6(2,741 ASNs)
AS293:AS-FROM-I2-TO-ESNET(2,941 ASNs)
AS-BELBONETOPEERS(3,364 ASNs)
AS-BELGACOM(3,364 ASNs)
AS-LEVEL3-IPV6(3,475 ASNs)
... and 451 more
Upstream AS Paths
37 unique paths, avg length 2.2
AS Looking Glass
Upstream paths (matching graph above)
All 37 Upstream Paths
Complete list of all observed paths
AS3557 IPv4 Address Subnets (2)
| 192.5.4.0/23 | 🇺🇸 US | F-Root covering prefix | ISC-F-ROOT |
| 192.5.5.0/24 | 🇺🇸 US | F-Root | ISC-F-ROOT |
AS3557 IPv6 Address Subnets (2)
| 2001:500:2e::/47 | 🇺🇸 US | F-Root cover | ISC-F-ROOT |
| 2001:500:2f::/48 | 🇺🇸 US | F-Root | ISC-F-ROOT |