Autonomous System details

AS2603

NORDUnet — nordu.net

Summary

Country
DK Denmark
Organization NORDUnet
Domain nordu.net
Number of IPv4 9,728
Number of IPv6 7.1305× 1029
AS Type Education
Registry RIPE NCC
Allocated May 07, 2002 (about 23 years ago)
Updated April 07, 2025 (about 7 days ago)

IP Ranges

AS2603 announces 10 IPv4 ranges and 2 IPv6 ranges.

That's a total of 9,728 IPv4 addresses and 7.1305× 1029 IPv6 addresses.

Prefix Organization Size Registry Status
109.105.96.0/20
SE Nordunet Core Backbone
4,096 RIPE NCC ASSIGNED PA
109.105.112.0/21
SE Nordunet Services
2,048 RIPE NCC ASSIGNED PA
109.105.120.0/22
DK NORDUnet
1,024 RIPE NCC ALLOCATED PA
185.174.116.0/22
DK NORDUnet
1,024 RIPE NCC ASSIGNED PA
192.36.171.0/24
SE NORDUnet
256 RIPE NCC LEGACY
193.10.68.0/24
DK Nordunet Backbone
256 RIPE NCC ASSIGNED PA
193.10.252.0/24
SE Nordunet Backbone
256 RIPE NCC ASSIGNED PA
193.10.254.0/24
DK Nordunet Backbone
256 RIPE NCC ASSIGNED PA
193.11.3.0/24
SE New Combined Nordunet/sunet Noc Network
256 RIPE NCC ASSIGNED PA
194.68.13.0/24
DK NORDUnet
256 RIPE NCC ASSIGNED PA
Prefix Organization Size Registry Status
2001:948::/29
SE Nordunet Infrastructure
6.3383× 1029 RIPE NCC ASSIGNED
2001:948::/32
SE Nordunet Infrastructure
7.9228× 1028 RIPE NCC ASSIGNED

Peers

AS2603 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.

AS42 AS293 AS513 AS553 AS703 AS714 AS812 AS852 AS917 AS932 AS979 AS983 AS984 AS1031 AS1103 AS1140 AS1257 AS1267 AS1273 AS1828 AS1836 AS1850 AS2027 AS2110 AS2119 AS2497 AS2518 AS2635 AS2687 AS2818 AS2874 AS2906 AS2907 AS3170 AS3213 AS3214 AS3216 AS3223 AS3301 AS3303 AS3308 AS3333 AS3399 AS3491 AS3741 AS3786 AS4004 AS4058 AS4134 AS4181 AS4230 AS4258 AS4455 AS4515 AS4538 AS4594 AS4608 AS4637 AS4646 AS4658 AS4780 AS4862 AS5400 AS5413 AS5463 AS5482 AS5503 AS5607 AS5650 AS6079 AS6128 AS6169 AS6327 AS6421 AS6424 AS6461 AS6509 AS6614 AS6619 AS6663 AS6667 AS6696 AS6762 AS6774 AS6805 AS6830 AS6894 AS6908 AS6939 AS7029 AS7342 AS7479 AS7540 AS7575 AS7577 AS7617 AS7713 AS7795 AS7979 AS8001 AS8002 AS8075 AS8218 AS8220 AS8283 AS8289 AS8359 AS8365 AS8426 AS8455 AS8468 AS8530 AS8544 AS8551 AS8607 AS8648 AS8676 AS8680 AS8681 AS8683 AS8739 AS8757 AS8764 AS8781 AS8804 AS8838 AS8881 AS8896 AS8943 AS8966 AS9002 AS9009 AS9044 AS9050 AS9231 AS9253 AS9263 AS9269 AS9293 AS9304 AS9381 AS9498 AS9505 AS9536 AS9584 AS9658 AS9680 AS9729 AS9744 AS9886 AS9902 AS9908 AS9925 AS9930 AS9957 AS10098 AS10099 AS10103 AS10118 AS10310 AS11039 AS11232 AS12129 AS12200 AS12301 AS12350 AS12389 AS12390 AS12496 AS12519 AS12552 AS12576 AS12578 AS12678 AS12775 AS12779 AS12843 AS12859 AS12969 AS12996 AS13009 AS13030 AS13037 AS13101 AS13122 AS13150 AS13189 AS13194 AS13213 AS13237 AS13335 AS13414 AS13445 AS13536 AS13768 AS14061 AS14361 AS14537 AS14773 AS14907 AS15169 AS15412 AS15510 AS15659 AS16082 AS16086 AS16164 AS16186 AS16247 AS16265 AS16276 AS16353 AS16509 AS16735 AS17408 AS17444 AS17537 AS17554 AS17639 AS17924 AS17984 AS17990 AS18106 AS18218 AS18403 AS19108 AS19151 AS19551 AS19679 AS19754 AS20115 AS20253 AS20326 AS20473 AS20514 AS20562 AS20676 AS20712 AS20764 AS20773 AS20799 AS20804 AS20860 AS20915 AS20932 AS20940 AS20965 AS21293 AS21320 AS21339 AS21385 AS21396 AS21485 AS21700 AS21859 AS21949 AS23274 AS23673 AS23749 AS23764 AS23947 AS24413 AS24449 AS24482 AS24594 AS24724 AS24743 AS24916 AS24961 AS25091 AS25098 AS25148 AS25160 AS25180 AS25220 AS25369 AS25400 AS25460 AS25509 AS25577 AS26496 AS27552 AS28716 AS28792 AS28917 AS28931 AS29014 AS29017 AS29075 AS29119 AS29140 AS29432 AS29518 AS29550 AS29606 AS29611 AS29686 AS29695 AS29838 AS30081 AS30740 AS30781 AS30818 AS30827 AS30844 AS30880 AS30893 AS30950 AS31133 AS31472 AS31500 AS31631 AS31655 AS31708 AS31712 AS31727 AS31742 AS31950 AS32098 AS32242 AS32590 AS32748 AS32787 AS32934 AS33353 AS33891 AS33920 AS34019 AS34066 AS34177 AS34224 AS34244 AS34245 AS34270 AS34288 AS34442 AS34549 AS34555 AS34660 AS34746 AS34790 AS34927 AS35228 AS35266 AS35280 AS35706 AS35710 AS35826 AS36351 AS36459 AS36692 AS37100 AS37271 AS37468 AS37662 AS38008 AS38016 AS38082 AS38158 AS38193 AS38195 AS38478 AS38819 AS39029 AS39120 AS39122 AS39175 AS39180 AS39202 AS39326 AS39351 AS39642 AS40217 AS40934 AS41000 AS41047 AS41095 AS41103 AS41230 AS41327 AS41378 AS41811 AS42010 AS42459 AS42541 AS42611 AS42649 AS42689 AS42695 AS42708 AS42831 AS43013 AS43996 AS44066 AS44384 AS44444 AS45014 AS45250 AS45474 AS45543 AS45758 AS45796 AS45896 AS45903 AS46450 AS46489 AS47447 AS47480 AS47638 AS47699 AS47708 AS47866 AS47998 AS48070 AS48101 AS48173 AS48266 AS48362 AS48685 AS48825 AS49158 AS49544 AS49788 AS50023 AS50272 AS50300 AS50304 AS50572 AS50629 AS50763 AS50823 AS50989 AS51043 AS51055 AS51088 AS51185 AS51409 AS51483 AS51519 AS51561 AS51847 AS51896 AS51945 AS52320 AS54113 AS54994 AS55081 AS55256 AS55334 AS55720 AS55805 AS56190 AS56329 AS56478 AS56595 AS57630 AS57660 AS57793 AS57829 AS57976 AS58057 AS58299 AS58317 AS58453 AS58627 AS58715 AS58779 AS58807 AS58879 AS59318 AS59371 AS59395 AS59439 AS59605 AS59816 AS59835 AS60021 AS60171 AS60193 AS60377 AS60793 AS60800 AS60893 AS61124 AS61323 AS62023 AS62468 AS62902 AS63631 AS63888 AS63916 AS63949 AS64047 AS64050 AS64096 AS64415 AS131274 AS131314 AS131477 AS131642 AS132168 AS132337 AS132499 AS132825 AS133199 AS133613 AS133840 AS133847 AS133929 AS134196 AS134548 AS134823 AS135025 AS136744 AS136897 AS136907 AS137263 AS137409 AS137872 AS137897 AS137995 AS138997 AS139089 AS139659 AS139749 AS139831 AS140224 AS140627 AS141167 AS141394 AS142014 AS142032 AS152194 AS196881 AS197301 AS197898 AS198736 AS199283 AS199335 AS199468 AS199524 AS199713 AS199775 AS199950 AS200260 AS201126 AS201838 AS202053 AS202246 AS202282 AS202596 AS203038 AS203779 AS205206 AS205771 AS205975 AS206347 AS206626 AS207003 AS207080 AS207841 AS207995 AS209505 AS210412 AS210619 AS210893 AS211029 AS211393 AS211597 AS212109 AS212483 AS212655 AS213113 AS215322 AS215467 AS394354 AS396356 AS396986 AS398704

Upstreams

AS2603 connects to the global Internet via at least 2 upstream providers. In this setup, AS2603 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

AS1299 AS11537

Downstreams

AS2603 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS2603's role in extending Internet access beyond its own infrastructure.

AS224 AS1653 AS1741 AS1835 AS2832 AS2847 AS3221 AS3267 AS8501 AS8674 AS15474 AS39590 AS45102 AS198093

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