| 2001:4c00::/23 | WHOIS (RIPE_NCC) | RIPE Network Coordination Center | EU |
| 2001:4c00::/29 | RIPE_NCC available | — | ZZ |
| 2001:4c18::/29 | RIPE_NCC reserved | — | ZZ |
| 2001:4c20::/29 | WHOIS (RIPE_NCC) | Team Blue Carrier Limited | GB |
| 2001:4c20::/29 | RIPE_NCC assigned | — | GB |
| 2001:4c28::/29 | WHOIS (RIPE_NCC) | Opera Norway AS | NO |
| 2001:4c28::/29 | RIPE_NCC assigned | — | NO |
| 2001:4c38::/29 | BGP route | AS15435 DELTA Fiber Nederland B.V. | — |
| 2001:4c38::/29 | WHOIS (RIPE_NCC) | DELTA Fiber Nederland B.V. | NL |
| 2001:4c38::/29 | RIPE_NCC assigned | — | NL |
| 2001:4c48::/29 | BGP route | AS5483 Magyar Telekom Plc. | — |
| 2001:4c48::/29 | WHOIS (RIPE_NCC) | Magyar Telekom Plc. | HU |
| 2001:4c48::/29 | RIPE_NCC assigned | — | HU |
| 2001:4c50::/29 | WHOIS (RIPE_NCC) | Tele Columbus AG | DE |
| 2001:4c50::/29 | RIPE_NCC assigned | — | DE |
| 2001:4c58::/29 | WHOIS (RIPE_NCC) | Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum Informatyki | PL |
| 2001:4c58::/29 | RIPE_NCC assigned | — | PL |
| 2001:4c90::/29 | BGP route | AS35612 EOLO S.p.A. | — |
| 2001:4c90::/29 | WHOIS (RIPE_NCC) | EOLO S.p.A. | IT |
| 2001:4c90::/29 | RIPE_NCC assigned | — | IT |
| 2001:4ca0::/29 | BGP route | AS12816 Leibniz-Rechenzentrum | — |
| 2001:4ca0::/29 | WHOIS (RIPE_NCC) | Leibniz-Rechenzentrum | DE |
| 2001:4ca0::/29 | RIPE_NCC assigned | — | DE |
| 2001:4ca8::/29 | RIPE_NCC reserved | — | ZZ |
| 2001:4cb8::/29 | BGP route | AS28878 Signet B.V. | — |
| 2001:4cb8::/29 | WHOIS (RIPE_NCC) | Signet B.V. | NL |
| 2001:4cb8::/29 | RIPE_NCC assigned | — | NL |
| 2001:4cd0::/29 | BGP route | AS8551 Bezeq International Ltd. | — |
| 2001:4cd0::/29 | WHOIS (RIPE_NCC) | Bezeq International Ltd. | IL |
| 2001:4cd0::/29 | RIPE_NCC assigned | — | IL |
| 2001:4cd8::/29 | WHOIS (RIPE_NCC) | NETHINKS GmbH | DE |
| 2001:4cd8::/29 | RIPE_NCC assigned | — | DE |
| 2001:4ce0::/29 | WHOIS (RIPE_NCC) | CMO Internet Dienstleistungen GmbH | DE |
| 2001:4ce0::/29 | RIPE_NCC assigned | — | DE |
| 2001:4ce8::/29 | BGP route | AS59716 2342 Verwaltungs GmbH | — |
| 2001:4ce8::/29 | WHOIS (RIPE_NCC) | 2342 Verwaltungs GmbH | NL |
| 2001:4ce8::/29 | RIPE_NCC assigned | — | DE |
| 2001:4cf0::/29 | BGP route | AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. | — |
| 2001:4cf0::/29 | WHOIS (RIPE_NCC) | Universitaet Muenster, CIT | DE |
| 2001:4cf0::/29 | RIPE_NCC assigned | — | DE |
| 2001:4d28::/29 | RIPE_NCC reserved | — | ZZ |
| 2001:4d40::/29 | BGP route | AS13237 euNetworks GmbH | — |
| 2001:4d40::/29 | WHOIS (RIPE_NCC) | euNetworks GmbH | EU |
| 2001:4d40::/29 | RIPE_NCC assigned | — | DE |
| 2001:4d48::/29 | BGP route | AS8468 Cityfibre Limited | — |
| 2001:4d48::/29 | WHOIS (RIPE_NCC) | ENTANET International Limited | GB |
| 2001:4d48::/29 | RIPE_NCC assigned | — | GB |
| 2001:4d58::/29 | RIPE_NCC reserved | — | ZZ |
| 2001:4d88::/29 | WHOIS (RIPE_NCC) | Hosting.de GmbH | DE |
| 2001:4d88::/29 | RIPE_NCC assigned | — | DE |
| 2001:4d90::/29 | RIPE_NCC available | — | ZZ |
| 2001:4da0::/29 | RIPE_NCC available | — | ZZ |
| 2001:4dd0::/29 | BGP route | AS8422 NetCologne Gesellschaft fur Telekommunikation mbH | — |
| 2001:4dd0::/29 | WHOIS (RIPE_NCC) | NetCologne Gesellschaft fur Telekommunikation mbH | DE |
| 2001:4dd0::/29 | RIPE_NCC assigned | — | DE |
| 2001:4dd8::/29 | BGP route | AS2116 GLOBALCONNECT AS | — |
| 2001:4dd8::/29 | WHOIS (RIPE_NCC) | GLOBALCONNECT AS | NO |
| 2001:4dd8::/29 | RIPE_NCC assigned | — | NO |
| 2001:4df0::/29 | BGP route | AS1680 Cellcom Fixed Line Communication L.P | — |
| 2001:4df0::/29 | WHOIS (RIPE_NCC) | Cellcom Fixed Line Communication L.P | IL |
| 2001:4df0::/29 | RIPE_NCC assigned | — | IL |
| 2001:4df8::/29 | RIPE_NCC reserved | — | ZZ |
| 2001:4c0c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c5c::/30 | BGP route | AS13119 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum Informatyki | — |
| 2001:4c6c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c7c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c8c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c9c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c14::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c34::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c44::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c58::/30 | BGP route | AS8286 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum Informatyki | — |
| 2001:4c64::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c74::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4c84::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4cb4::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4cc4::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4ccc::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4cfc::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d0c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d1c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d3c::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d04::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d14::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d24::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4d34::/30 | RIPE_NCC reserved | — | ZZ |
| 2001:4cc8::/31 | BGP route | AS31246 O2 Czech Republic, a.s. | — |
| 2001:4cc8::/31 | WHOIS (RIPE_NCC) | O2 Czech Republic, a.s. | CZ |
| 2001:4c3a::/32 | WHOIS (RIPE_NCC) | NL-DELTA-INFRASTRUCTURE | NL |
| 2001:4c3b::/32 | WHOIS (RIPE_NCC) | NL-DELTA-FTTH-CUSTOMERS-1 | NL |
| 2001:4c3c::/32 | WHOIS (RIPE_NCC) | NL-DELTA-FTTH-CUSTOMERS-2 | NL |
| 2001:4c3d::/32 | WHOIS (RIPE_NCC) | NL-DELTA-FTTH-CUSTOMERS-3 | NL |
| 2001:4c3e::/32 | WHOIS (RIPE_NCC) | NL-DELTA-FTTH-CUSTOMERS-4 | NL |
| 2001:4c3f::/32 | WHOIS (RIPE_NCC) | NL-DELTA-FTTH-CUSTOMERS-5 | NL |
| 2001:4c4c::/32 | WHOIS (RIPE_NCC) | MT-CABLE-PREFIX-POOL | HU |
| 2001:4c4d::/32 | WHOIS (RIPE_NCC) | MT-FIXEDLINE-PREFIX-POOL | HU |
| 2001:4c4e::/32 | WHOIS (RIPE_NCC) | MT-FIXEDLINE-PREFIX-POOL | HU |
| 2001:4c4f::/32 | WHOIS (RIPE_NCC) | Static IP prefix | HU |
| 2001:4c08::/32 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 2001:4c08::/32 | WHOIS (RIPE_NCC) | Lumen Technologies UK Limited | GB |
| 2001:4c10::/32 | BGP route | AS24586 Intermax Group B.V. | — |
| 2001:4c10::/32 | WHOIS (RIPE_NCC) | Intermax Group B.V. | NL |
| 2001:4c20::/32 | BGP route | AS29636 Team Blue Carrier Limited | — |
| 2001:4c21::/32 | BGP route | AS41355 Team Blue Carrier Limited | — |
| 2001:4c21::/32 | WHOIS (RIPE_NCC) | c2-evt | GB |
| 2001:4c30::/32 | BGP route | AS9085 SUPERMEDIA Sp.z.o.o. | — |
| 2001:4c30::/32 | WHOIS (RIPE_NCC) | SUPERMEDIA Sp.z.o.o. | PL |
| 2001:4c38::/32 | WHOIS (RIPE_NCC) | NL-DELTA-INFRASTRUCTURE | NL |
| 2001:4c39::/32 | WHOIS (RIPE_NCC) | NL-DELTA-INFRASTRUCTURE | NL |
| 2001:4c40::/32 | BGP route | AS8368 Dstny BE N.V. | — |
| 2001:4c40::/32 | WHOIS (RIPE_NCC) | Dstny BE N.V. | BE |
| 2001:4c48::/32 | BGP route | AS5483 Magyar Telekom Plc. | — |
| 2001:4c50::/32 | BGP route | AS35244 Tele Columbus AG | — |
| 2001:4c51::/32 | BGP route | AS16097 HL komm Telekommunikations GmbH | — |
| 2001:4c51::/32 | WHOIS (RIPE_NCC) | OneNet-Access-IPv6-001 | DE |
| 2001:4c60::/32 | WHOIS (RIPE_NCC) | Orange Espagne SA | ES |
| 2001:4c68::/32 | BGP route | AS15830 Equinix (EMEA) Acquisition Enterprises B.V. | — |
| 2001:4c68::/32 | WHOIS (RIPE_NCC) | Equinix (Germany) GmbH | DE |
| 2001:4c70::/32 | BGP route | AS28678 Technical University of Koszalin | — |
| 2001:4c70::/32 | WHOIS (RIPE_NCC) | Technical University of Koszalin | PL |
| 2001:4c78::/32 | BGP route | AS12350 VTX Services SA | — |
| 2001:4c78::/32 | WHOIS (RIPE_NCC) | VTX Services SA | CH |
| 2001:4c80::/32 | BGP route | AS2857 Johannes Gutenberg-Universitaet Mainz | — |
| 2001:4c80::/32 | WHOIS (RIPE_NCC) | Johannes Gutenberg-Universitaet Mainz | DE |
| 2001:4c88::/32 | BGP route | AS49100 Pishgaman Toseeh Ertebatat Company (Private Joint Stock) | — |
| 2001:4c88::/32 | WHOIS (RIPE_NCC) | Pishgaman Toseeh Ertebatat Company (Private Joint Stock) | IR |
| 2001:4c98::/32 | BGP route | AS35062 Teamnet GmbH | — |
| 2001:4c98::/32 | WHOIS (RIPE_NCC) | Teamnet GmbH | DE |
| 2001:4cb0::/32 | BGP route | AS29009 UK Broadband Ltd. | — |
| 2001:4cb0::/32 | WHOIS (RIPE_NCC) | UK Broadband Ltd. | GB |
| 2001:4cb9::/32 | BGP route | AS39700 Signet B.V. | — |
| 2001:4cc0::/32 | BGP route | AS5533 Claranet Portugal S.A | — |
| 2001:4cc0::/32 | WHOIS (RIPE_NCC) | Claranet Portugal S.A | PT |
| 2001:4cc8::/32 | WHOIS (RIPE_NCC) | SMART Comp. a.s. | CZ |
| 2001:4cd8::/32 | BGP route | AS8319 NETHINKS GmbH | — |
| 2001:4cd9::/32 | BGP route | AS8319 NETHINKS GmbH | — |
| 2001:4ce0::/32 | BGP route | AS25058 CMO Internet Dienstleistungen GmbH | — |
| 2001:4ce8::/32 | BGP route | AS250 AS250.net Foundation | — |
| 2001:4cf8::/32 | BGP route | AS13167 Merck KGaA | — |
| 2001:4d00::/32 | BGP route | AS8226 Arpinet LLC | — |
| 2001:4d30::/32 | BGP route | AS5555 Sohonet Limited | — |
| 2001:4d38::/32 | BGP route | AS12850 Retelit Digital Services S.p.A. | — |
| 2001:4d40::/32 | BGP route | AS13237 euNetworks GmbH | — |
| 2001:4d48::/32 | BGP route | AS8468 Cityfibre Limited | — |
| 2001:4d50::/32 | BGP route | AS34309 Link11 GmbH | — |
| 2001:4d60::/32 | BGP route | AS1126 Vancis Advanced ICT Services | — |
| 2001:4d68::/32 | BGP route | AS25441 Imagine Communications Group Limited | — |
| 2001:4d70::/32 | BGP route | AS201210 TRIGONON DATA SERVICES LTD | — |
| 2001:4d80::/32 | BGP route | AS5606 GTS Telecom SRL | — |
| 2001:4d88::/32 | BGP route | AS31333 Hosting.de GmbH | — |