ASN Lookup Tool

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% Information related to 'AS20929 - AS21002'

as-block:       AS20929 - AS21002
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:27Z
last-modified:  2018-11-22T15:27:27Z
source:         RIPE

% Information related to 'AS20965'

% Abuse contact for 'AS20965' is 'cert@geant.org'

aut-num:        AS20965
as-name:        GEANT
org:            ORG-DLCU1-RIPE
descr:          The GEANT IP Service
descr:          The GEANT Network Connects the European National Regional Education Networks (NRENs) together
remarks:        GEANT Research and Education Network
remarks:
remarks:        === BEGIN === INFORMATION ==========================================================
remarks:        NREN routes are marked with an informational community based on ASN.
remarks:
remarks:        20965:<ASN> For 2-byte ASNs
remarks:        origin:<ASN>:20965 For 4-byte ASNs
remarks:
remarks:        NRENs can block advertisements to other NRENs using a specific block community.
remarks:
remarks:        64512:<ASN> For 2-byte destination ASNs
remarks:        origin:<ASN>:64512 For 4-byte destination ASNs
remarks:
remarks:        NRENs are welcome to use specific communities to define how routes are advertised to R&E peers
remarks:        R&E Peers participate in the exchange of R&E traffic but are not part of the GEANT consortium
remarks:        Prepending is additive, combine communities to increase prepending.
remarks:
remarks:        20965:0000 - Don't announce the routes to all R&E Peers
remarks:        20965:0010 - Prepend GEANT AS one time towards all R&E Peers
remarks:        20965:0020 - Prepend GEANT AS two times towards all R&E Peers
remarks:        20965:0030 - Prepend GEANT AS three times towards all R&E Peers
remarks:        20965:0060 - Prepend GEANT AS six times towards all R&E Peers
remarks:
remarks:        Routes can be manipulated using per-peer communities
remarks:        Penultimate digit is used to govern route action
remarks:        20965:...0. - Block advertisement to R&E Peer
remarks:        20965:...1. - Prepend GEANT AS one time towards to R&E Peer
remarks:        20965:...2. - Prepend GEANT AS two times towards to R&E Peer
remarks:        20965:...3. - Prepend GEANT AS three times towards to R&E Peer
remarks:        20965:...6. - Prepend GEANT AS six times towards to R&E Peer
remarks:
remarks:        20965:20.0 - SINET
remarks:        20965:30.0 - CANARIE
remarks:        20965:45.0 - UbuntuNet
remarks:        20965:50.0 - Internet2
remarks:        20965:60.0 - ESnet
remarks:        20965:80.0 - RedCLARA
remarks:        20965:85.0 - NISN
remarks:        20965:90.0 - TEIN
remarks:        20965:120.0 - SARInet/KAUST
remarks:        20965:150.0 - ASREN
remarks:        20965:160.0 - KREONET
remarks:        20965:170.0 - NKN
remarks:        20965:180.0 - IRANET
remarks:        20965:190.0 - OMREN
remarks:        20965:200.0 - KIAE
remarks:        20965:210.0 - SingAREN
remarks:        20965:220.0 - WACREN
remarks:        20965:230.0 - HBKU
remarks:        20965:240.0 - Maaen
remarks:        20965:250.0 - ANKABUT
remarks:        20965:260.0 - TENET
remarks:        20965:270.0 - NIKS
remarks:        20965:280.0 - UTIC
remarks:        20965:290.0 - T-SYSTEMS
remarks:        20965:300.0 - CSTNET
remarks:        20965:310.0 - CAREN
remarks:        20965:320.0 - AARNet
remarks:        20965:330.0 - ESTINET
remarks:        20965:340.0 - MARWAN
remarks:        20965:350.0 - HARNET
remarks:        20965:360.0 - ARN
remarks:        20965:370.0 - ASNET-TW
remarks:        20965:380.0 - SUM
remarks:
remarks:        20965:0008 - RTBH service, /32 and /128 prefixes only
remarks:        20965:0001 - Routes heard with suspected commercial ASNs in the path.
remarks:        20965:0002 - Anycast Routing
remarks:        Anycast routes are identified by a prefix list and community filter and the local preference raised on backup links.
remarks:        NRENs who add this community will see no effect unless they also instruct us to add the route to our prefix-list.
remarks:
remarks:        ===============
remarks:        R&E Peer Traffic Engineering
remarks:        ===============
remarks:        Peers are marked with the informational community 20965:65530
remarks:
remarks:        Peers eligible for backup transit arrangements can announce prefixes to other R&E peers like so:
remarks:        64700:<ASN> For 2-byte ASNs
remarks:        origin:<ASN>:64700 For 4-byte ASNs
remarks:
remarks:        === END === INFORMATION ==========================================================
remarks:
remarks:        ===============
remarks:        GEANT R&E
remarks:        ===============
remarks:        Internal internal prefixes are given community 20965:155
remarks:
remarks:        GEANT NRENs - National Regional Educational Networks
remarks:        NREN prefixes are given a LOCAL-PREF of 150 and community 20965:155
remarks:
import:         from AS137 accept AS-GARRTOGEANT and AS31638
import:         from AS378 accept AS-MACHBA
import:         from AS513 accept AS-CERNEXT and AS-SWITCH and AS50837
import:         from AS559 accept AS-SWITCH and AS-CERNEXT and AS50837
import:         from AS680 accept AS-DFNTOWINISP
import:         from AS766 accept AS-REDIRIS
import:         from AS786 accept AS-JANETEURO
import:         from AS1103 accept AS1103:AS-SURF
import:         from AS1213 accept AS-HEANET
import:         from AS1853 accept AS-ACONET and AS-ACOSERV and AS-ACONET-STH
import:         from AS1930 accept AS-RCCN
import:         from AS1955 accept AS-HBONE
import:         from AS2107 accept AS-ARNES
import:         from AS2108 accept AS-CARNet
remarks:        AS7500 (DNS root name-server) is behind RENATER
import:         from AS2200 accept AS-RENATER
import:         from AS2602 accept AS-RESTENA
import:         from AS2603 accept AS-NORDUNET-RE
import:         from AS2607 accept AS-SANET
import:         from AS2611 accept AS-BELNET
import:         from AS2614 accept AS-ROEDUNET
import:         from AS2847 accept AS-LITNET
import:         from AS2852 accept AS2852:AS-CESNET
import:         from AS3221 accept AS-EENET
import:         from AS3268 accept AS-CYNET
import:         from AS5408 accept AS5408:AS-TO-GEANT and AS5408:RS-ROUTES
import:         from AS5538 accept AS-SigmaNet-Geant
import:         from AS6802 accept AS-ISTF
import:         from AS8501 accept AS-PLNET
import:         from AS8517 accept AS-ULAKNET
import:         from AS9199 accept AS-RENAM
import:         from AS12046 accept AS-RICERKANET
import:         from AS12687 accept AS-URAN-GEANT
import:         from AS13092 accept AS13092:AS-TO-GEANT
import:         from AS20545 accept as-GRENA-GEANT
import:         from AS21274 accept AS-BASNET
import:         from AS40981 accept AS40981
import:         from AS44224 accept AS-MARNET
import:         from AS47623 accept AS47623:AS-SET
import:         from AS57961 accept AS57961
import:         from AS202993 accept AS-AzScience-Geant
remarks:
export:         to AS137 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS378 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS513 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS559 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS680 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS766 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS786 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS1103 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS1213 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS1853 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS1930 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS1955 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2107 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2108 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2200 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2602 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2603 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2607 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2611 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2614 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2847 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS2852 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS3221 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS3268 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS5408 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS5538 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS6802 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS8501 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS8517 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS9199 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS12687 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS12046 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS13092 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS20545 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS21274 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS40981 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS44224 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS47623 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS57961 announce AS-GEANTNRN and AS-GEANTNRENPEERS
export:         to AS202993 announce AS-GEANTNRN and AS-GEANTNRENPEERS
remarks:
remarks:        GEANT PEERS - non-NRENs who receive NREN routes:
remarks:        All Peers are accepted with a LOCAL-PREF of 100
import:         from AS293 accept AS293:AS-ESNET
import:         from AS297 accept AS297:AS-CONE
import:         from AS2018 accept AS-TERTIARY
import:         from AS3267 accept as3267:as-cust:as-gov
import:         from AS2907 accept as2907:as-sinet
import:         from AS3208 accept AS3208
import:         from AS5089 accept AS-NTLI
import:         from AS6509 accept AS6509:AS-CANARIE
import:         from AS6879 accept AS6879 AS2561
import:         from AS11537 accept AS20965:AS-FROM-Internet2-TO-GEANT
import:         from AS20545 accept as-bgp_peers
import:         from AS23911 accept AS23911
import:         from AS9264 accept AS9264
import:         from AS24490 accept AS20965:AS-FROM-TEIN-TO-GEANT
import:         from AS27750 accept AS20965:AS-FROM-REDCLARA-TO-GEANT
import:         from AS36944 accept AS-UBUNTUNET
import:         from AS46786 accept AS46786
import:         from AS47623 accept AS47623 and AS51090:AS-ALL
import:         from AS136968 accept AS136968
import:         from AS8670 accept AS8670:AS-UTIC
import:         from AS37288 accept AS-SET-WACREN
import:         from AS9885 accept AS20965:AS-FROM-NKN-TO-GEANT
import:         from AS30983 accept AS30983
import:         from AS8895 accept AS8895:AS-KACST
import:         from AS1237 accept AS1237:AS-KREONET
import:         from AS50999 accept AS50999
import:         from AS6736 accept AS-iranet-IPM
import:         from AS34945 accept AS34945
import:         from AS7497 accept AS7497:AS-CSTNET
import:         from AS199354 accept AS199354:AS-ASREN-GEANT-EXPORT
import:         from AS7575 accept AS7575:AS-CUSTOMER
import:         from AS137207 accept AS137207:AS-HARNET-RE
remarks:
remarks:        The following ASs are our non-NREN peers who receive NREN routes. All peers get all routes from AS-GEANTNRN and a subset of AS-GEANTNRENPEERS based on the agreed transit policy as highlighted by the communities below.
export:         to AS293 announce AS-GEANTNRN and AS20965:AS-FROM-NKN-TO-GEANT and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS297 announce AS-GEANTNRN and AS20965:AS-FROM-NKN-TO-GEANT and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS2018 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS3267 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS2907 announce AS-GEANTNRN and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS3208 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS9264 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS199354 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS6509 announce AS-GEANTNRN and AS20965:AS-FROM-NKN-TO-GEANT and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS37944 announce AS-GEANTNRN and AS2561 and AS30983 and AS3208 and AS6879 and AS7497:AS-CSTNET and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS6879 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and AS6509:AS-CANARIE and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS137207 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS34945 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS11537 announce AS-GEANTNRN and AS20965:AS-FROM-NKN-TO-GEANT and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS6736 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS50999 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS59624 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS17579 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS8895 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS30983 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS3208 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS9885 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and AS6509:AS-CANARIE and AS6879 and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS206350 announce AS-GEANTNRN and AS8670:AS-UTIC
export:         to AS27750 announce AS-GEANTNRN and AS-UBUNTUNET and AS199354:AS-ASREN-GEANT-EXPORT and AS6879 and AS2561 and AS3208 and AS-iranet-IPM and AS-SET-WACREN and AS20965:AS-FROM-NKN-TO-GEANT and AS8670:AS-UTIC
export:         to AS23855 announce AS-GEANTNRN and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS24490 announce AS-GEANTNRN and AS2561 and AS30983 and AS3208 and AS6879 and AS8670:AS-UTIC and AS-SET-WACREN and AS-UBUNTUNET
export:         to AS36944 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-SET-WACREN
export:         to AS8670 announce AS-GEANTNRN and AS1237:AS-KREONET and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and as3267:as-cust:as-gov and AS34945 and AS50999 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8895:AS-KACST and AS9264 and AS-KIAE-GRID and AS-SET-WACREN and AS-TERTIARY and AS-UBUNTUNET
export:         to AS37288 announce AS-GEANTNRN and AS20965:AS-FROM-Internet2-TO-GEANT and AS20965:AS-FROM-NKN-TO-GEANT and AS20965:AS-FROM-REDCLARA-TO-GEANT and AS20965:AS-FROM-TEIN-TO-GEANT and AS2561 and AS293:AS-ESNET and AS297:AS-CONE and AS30983 and AS3208 and AS6509:AS-CANARIE and AS6879 and AS7497:AS-CSTNET and AS7575:AS-CUSTOMER and AS8670:AS-UTIC and AS-UBUNTUNET
admin-c:        EJA2-RIPE
tech-c:         DANT-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         DANTE-MNT
created:        2002-09-25T09:03:02Z
last-modified:  2026-01-26T15:17:15Z
source:         RIPE

organisation:   ORG-DLCU1-RIPE
org-name:       GEANT Vereniging
country:        NL
org-type:       LIR
address:        Hoekenrode 3
address:        1102 BR
address:        Amsterdam
address:        NETHERLANDS
phone:          +441223371300
phone:          +31 (0)20 5304488
fax-no:         +441223371371
admin-c:        RGH15-RIPE
admin-c:        TR88-RIPE
admin-c:        EJA2-RIPE
admin-c:        NGD-RIPE
admin-c:        DANT-RIPE
abuse-c:        DCRT1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        DANTE-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         DANTE-MNT
created:        2004-04-17T11:18:52Z
last-modified:  2026-02-05T16:33:43Z
source:         RIPE # Filtered

role:           GEANT Operations
address:        City House, 126-130 Hills Road
address:        Cambridge CB2 1PQ, UK
phone:          +44 1223 371300
fax-no:         +44 1223 371371
abuse-mailbox:  cert@oc.geant.net
remarks:        operations@ is read UK office hours only; not for outage reports.
remarks:        Regarding security related problems contact:
remarks:        cert@oc.geant.net
remarks:        Regarding electronic mail abuse contact:
remarks:        cert@oc.geant.net
remarks:        ----------------------------------------------------
admin-c:        EJA2-RIPE
admin-c:        NGD-RIPE
tech-c:         RGH15-RIPE
tech-c:         NGD-RIPE
tech-c:         EJA2-RIPE
tech-c:         TR88-RIPE
nic-hdl:        DANT-RIPE
mnt-by:         DANTE-MNT
created:        2002-09-02T10:52:00Z
last-modified:  2026-02-05T16:31:35Z
source:         RIPE # Filtered

person:         Emma Apted
address:        DANTE
address:        City House
address:        126-130 Hills Road
address:        Cambridge CB2 1PQ
address:        United Kingdom
phone:          +44 1223 371300
fax-no:         +44 1223 371371
nic-hdl:        EJA2-RIPE
mnt-by:         DANTE-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2013-03-27T18:26:25Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.121 (BUSA)