| base | record | name | ip | reverse | route | as |
| ams1.isc.org | ns-soa | ns-int.isc.org | 204.152.184.65 United States | 204.152.184.0/21 ISC | AS1280 ISC- Internet Systems Consortium, Inc. |
| ns | sfba.sns-pb.isc.org | 149.20.64.3 United States | 149.20.0.0/16 AS1280 project netblock |
| ord.sns-pb.isc.org | 199.6.0.30 United States | 199.6.0.0/24 Internet Systems Consortium, Inc. (ISC) | AS33071 ISC-ORD1 Internet Systems Consortium, Inc. |
| ams.sns-pb.isc.org | 199.6.1.30 United States | 199.6.1.0/24 Internet Systems Consortium, Inc. (ISC) | AS30132 ISC-AMS1 Internet Systems Consortium, Inc. |
| isc.org | a | 149.20.64.42 United States | (none) | 149.20.0.0/16 AS1280 project netblock | AS1280 ISC- Internet Systems Consortium, Inc. |
| ns-soa | ns-int.isc.org | 204.152.184.65 United States | 204.152.184.0/21 ISC |
| ns | sfba.sns-pb.isc.org | 149.20.64.3 United States | 149.20.0.0/16 AS1280 project netblock |
| ord.sns-pb.isc.org | 199.6.0.30 United States | 199.6.0.0/24 Internet Systems Consortium, Inc. (ISC) | AS33071 ISC-ORD1 Internet Systems Consortium, Inc. |
| ams.sns-pb.isc.org | 199.6.1.30 United States | 199.6.1.0/24 Internet Systems Consortium, Inc. (ISC) | AS30132 ISC-AMS1 Internet Systems Consortium, Inc. |
| ns.isc.afilias-nst.info | 199.254.63.254 Canada | 199.254.63.0/24 REACH (Customer Route) | AS12041 AFILIAS-NST Afilias Limited - Prefixes announced from this origin AS are anycast from several places. See RFC 4787. - |
| mx | 13 | mx.ams1.isc.org | 199.6.1.65 United States | 199.6.1.0/24 Internet Systems Consortium, Inc. (ISC) | AS30132 ISC-AMS1 Internet Systems Consortium, Inc. |
| 10 | mx.isc.org | 204.152.184.167 United States | 204.152.184.0/21 ISC | AS1280 ISC- Internet Systems Consortium, Inc. |