All ASNs

Autonomous System details for AS1103

AS1103

SURF B.V. • surfcert.nl

AS1103 — SURF B.V.

AS Name

SURFNET-NL

Country

The Netherlands (NL)

Website

surfcert.nl

Number of IPv4

7,221,760

Number of IPv6

6.34 × 10²⁹

ASN type

Education

Status

Allocated

Registry

RIPE

Allocated

September 23, 2002

Last updated

April 30, 2025

IP Ranges

100 IPv4 prefixes, 3 IPv6 prefixes

Prefix	Company	Number of IPs
129.125.0.0/16	Rijksuniversiteit Groningen	65,536
130.37.0.0/16	Stichting VU	65,536
131.174.0.0/16	Radboud Universiteit Nijmegen	65,536
131.211.0.0/16	Universiteit Utrecht	65,536
131.224.0.0/16	Rijksinstituut voor Volksgezondheid en Milieuhygiene	65,536
132.229.0.0/16	Universiteit Leiden	65,536
134.221.0.0/16	TNO	65,536
136.231.0.0/16	Stichting Deltares	65,536
137.56.0.0/16	Universiteit van Tilburg	65,536
137.120.0.0/16	Universiteit Maastricht	65,536
137.224.0.0/16	Wageningen Universiteit	65,536
139.63.0.0/16	Dutch organization for applied scientific research	65,536
141.252.0.0/16	Noordelijke Hogeschool Leeuwarden	65,536
143.121.0.0/16	Universitair Medisch Centrum Utrecht	65,536
145.0.0.0/16	SURFnet Network	65,536
145.1.0.0/17	Stichting Nederlandse Wetenschappelijk Onderzoek Instituten trading as Koninklijk NIOZ	32,768
145.2.0.0/15	SURF B.V.	131,072
145.5.0.0/16	Erasmus Universiteit Rotterdam	65,536
145.9.0.0/16	SURF B.V.	65,536
145.19.0.0/16	HZ University of Applied Sciences	65,536
145.20.0.0/16	Open Universiteit Nederland	65,536
145.23.0.0/16	SURF B.V.	65,536
145.24.0.0/16	Hogeschool Rotterdam	65,536
145.28.0.0/15	SURF B.V.	131,072
145.33.0.0/16	SURF B.V.	65,536
145.37.0.0/16	SURF B.V.	65,536
145.38.0.0/15	SURFsara reken cluster	131,072
145.41.0.0/16	SURF B.V.	65,536
145.44.0.0/16	SURF B.V.	65,536
145.48.0.0/15	Avans Hogeschool	131,072
145.51.0.0/16	SURF B.V.	65,536
145.52.0.0/16	Haagse Hogeschool	65,536
145.74.0.0/15	Hogeschool van Arnhem en Nijmegen	131,072
145.76.0.0/16	Hogeschool Saxion	65,536
145.81.0.0/16	SURF B.V.	65,536
145.85.0.0/16	SURF B.V.	65,536
145.88.0.0/15	SURF B.V.	131,072
145.90.0.0/16	Amsterdam School of the Arts	65,536
145.91.0.0/16	Zuyd Hogeschool	65,536
145.92.0.0/15	Hogeschool van Amsterdam	131,072
145.95.0.0/16	NETSURF NET	65,536
145.96.0.0/16	SURFnet bv	65,536
145.97.0.0/20	SURF SVP NET	4,096
145.97.16.0/22	Hogeschool Leiden	1,024
145.97.20.0/22	SURFnet SURFcloud	1,024
145.97.24.0/21	Radboud Universiteit Nijmegen	2,048
145.97.48.0/20	ROC Oost-Nederland	4,096
145.97.64.0/18	ROC Oost-Nederland	16,384
145.97.128.0/18	Rijksuniversiteit Groningen	16,384
145.97.192.0/18	Universiteit Utrecht	16,384
145.98.0.0/16	Medisch Centrum Leeuwarden	65,536
145.98.16.0/24	ANY NET	256
145.100.0.0/15	SURFsara	131,072
145.102.0.0/16	SIDN LABS NET	65,536
145.103.0.0/16	Stichting GlasLokaal	65,536
145.107.0.0/16	NIKHEF NET	65,536
145.107.24.0/22	Radboud Universiteit Nijmegen	1,024
145.108.0.0/16	Vrije Universiteit Amsterdam	65,536
145.116.64.0/18	ROC Mondriaan	16,384
145.116.128.0/18	Radboud Universiteit Nijmegen	16,384
145.116.192.0/20	Zeeuwse Bibliotheek	4,096
145.116.224.0/19	ROC Oost-Nederland	8,192
145.117.0.0/16	Academic Medical Centre	65,536
145.118.0.0/16	Grafisch Lyceum Rotterdam	65,536
145.120.0.0/14	Utrecht University	262,144
145.124.0.0/15	ASTRON	131,072
145.126.0.0/16	SURFnet bv	65,536
145.127.0.0/17	SURFnet bv	32,768
145.136.0.0/15	SURF B.V.	131,072
145.137.128.0/18	Radboud Universiteit Nijmegen	16,384
145.138.0.0/16	ROC Aventus	65,536
145.140.0.0/14	SIVON	262,144
145.144.0.0/12	SURF B.V.	1,048,576
145.160.0.0/12	SURF B.V.	1,048,576
156.83.0.0/16	Erasmus MC	65,536
192.16.188.0/23	SURFnet bv	512
192.31.231.0/24	Stichting VU	256
192.33.36.0/24	Stichting VU	256
192.42.113.0/24	SURFnet bv	256
192.42.114.0/23	Nederlands Kanker Instituut-Antoni van Leeuwenhoek Ziekenhuis	512
192.42.120.0/22	ASTRON	1,024
192.42.124.0/22	Stichting Nederlandse Wetenschappelijk Onderzoek Instituten trading as DIFFER	1,024
192.43.212.0/24	TNO	256
192.87.0.0/16	SURF B.V.	65,536
192.104.140.0/24	Centraal Planbureau	256
193.176.235.0/24	Koninklijke Nederlandse Akademie van Wetenschappen	256
193.177.176.0/22	Maxima Medisch Centrum	1,024
194.13.16.0/20	Inspectie van het Onderwijs	4,096
194.13.112.0/21	Stichting Sint Antonius Ziekenhuis	2,048
194.26.8.0/22	Stichting Fontys	1,024
194.26.12.0/22	Stichting Fontys	1,024
194.53.88.0/24	Stichting Elisabeth-TweeSteden Ziekenhuis	256
194.53.89.0/24	Stichting Elisabeth-TweeSteden Ziekenhuis	256
194.53.92.0/24	Stichting Elisabeth-TweeSteden Ziekenhuis	256
194.53.94.0/24	Stichting Elisabeth-TweeSteden Ziekenhuis	256
194.53.95.0/24	Stichting Elisabeth-TweeSteden Ziekenhuis	256
194.104.124.0/23	Amphia Ziekenhuis	512
194.104.240.0/20	Hogeschool Zuyd	4,096
194.171.0.0/16	SURF B.V.	65,536
195.169.0.0/16	SURFnet bv	65,536
2001:610::/29	SURF B.V.	6.34 × 10²⁹
2001:67c:1200::/48	Maxima Medisch Centrum	1.21 × 10²⁴
2001:67c:262c::/48	Dienst Uitvoering Onderwijs	1.21 × 10²⁴

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS1103

1,068 peers

AS42 AS286 AS293 AS513 AS702 AS714 AS917 AS931 AS1031 AS250 AS1547 AS1820 AS2603 AS3223 AS3856 AS3920 AS5416 AS5466 AS6206 AS7049 AS8262 AS8455 AS8462 AS8657 AS8708 AS8860 AS9036 AS12322 AS12615 AS12731 AS12871 AS12993 AS13249 AS15693 AS17557 AS20326 AS20940 AS21221 AS21497 AS23764 AS25091 AS25151 AS25521 AS29001 AS30286 AS31027 AS31424 AS31529 AS31800 AS34927 AS35297 AS35421 AS35805 AS38516 AS39063 AS39642 AS39684 AS39737 AS39832 AS41327 AS41692 AS43414 AS43519 AS43641 AS44066 AS44134 AS44684 AS44858 AS45009 AS47121 AS48011 AS48200 AS48972 AS49800 AS50304 AS50522 AS51050 AS51088 AS51154 AS51184 AS51185 AS51468 AS54113 AS54148 AS54994 AS56504 AS56911 AS56987 AS58299 AS59560 AS59827 AS60051 AS60167 AS60486 AS61013 AS61955 AS62041 AS62715 AS62955 AS139341 AS139901 AS139977 AS149744 AS197000 AS198228 AS199332 AS199752 AS199995 AS200596 AS202224 AS202746 AS202932 AS204805 AS204911 AS205103 AS205275 AS206389 AS207063 AS208814 AS208992 AS209090 AS209181 AS209768 AS209859 AS212591 AS212699 AS213028 AS213279 AS214451 AS215248 AS215296 AS263152 AS265269 AS398465 AS1126 AS1136 AS1241 AS1248 AS1267 AS1680 AS1764 AS1828 AS2018 AS2119 AS2611 AS2635 AS2686 AS2852 AS2854 AS2906 AS2907 AS3212 AS3214 AS3216 AS3226 AS3292 AS3303 AS3326 AS3327 AS3399 AS3462 AS3786 AS4229 AS4230 AS4455 AS4601 AS4637 AS4651 AS4657 AS4761 AS4775 AS4788 AS4800 AS5390 AS5405 AS5418 AS5429 AS5524 AS5583 AS5606 AS5713 AS6057 AS6204 AS6424 AS6507 AS6509 AS6661 AS6667 AS6677 AS6681 AS6696 AS6718 AS6774 AS6823 AS6939 AS7195 AS7342 AS7473 AS7497 AS7522 AS7539 AS7552 AS7713 AS8038 AS8075 AS8218 AS8220 AS8283 AS8298 AS8302 AS8304 AS8309 AS8315 AS8359 AS8365 AS8368 AS8369 AS8399 AS8400 AS8422 AS8426 AS8447 AS8452 AS8473 AS8487 AS8501 AS8529 AS8560 AS8587 AS8632 AS8637 AS8732 AS8758 AS8763 AS8767 AS8781 AS8801 AS8821 AS8839 AS8859 AS8866 AS8881 AS8918 AS8926 AS8932 AS8966 AS9002 AS9008 AS9009 AS9031 AS9044 AS9050 AS9119 AS9120 AS9136 AS9145 AS9150 AS9158 AS9264 AS9299 AS9304 AS9498 AS9583 AS9605 AS9875 AS9902 AS9930 AS9957 AS10099 AS10122 AS10310 AS11019 AS11967 AS12189 AS12297 AS12329 AS12355 AS12399 AS12400 AS12414 AS12440 AS12552 AS12578 AS12637 AS12693 AS12695 AS12703 AS12713 AS12735 AS12741 AS12759 AS12779 AS12859 AS12876 AS12888 AS12897 AS12902 AS12969 AS13000 AS13002 AS13030 AS13101 AS13122 AS13132 AS13150 AS13194 AS13213 AS13237 AS13285 AS13289 AS13335 AS13414 AS13984 AS14061 AS14127 AS14537 AS14593 AS14630 AS14907 AS15169 AS15412 AS15435 AS15447 AS15466 AS15516 AS15547 AS15557 AS15576 AS15600 AS15605 AS15694 AS15695 AS15703 AS15802 AS15830 AS15895 AS15943 AS15958 AS15966 AS15967 AS16218 AS16265 AS16276 AS16278 AS16298 AS16323 AS16344 AS16347 AS16350 AS16509 AS16552 AS16637 AS17450 AS17494 AS17579 AS17639 AS17727 AS18001 AS18103 AS18106 AS18678 AS19551 AS19679 AS19711 AS20278 AS20473 AS20485 AS20495 AS20504 AS20546 AS20559 AS20647 AS20764 AS20766 AS20804 AS20847 AS20886 AS20932 AS20969 AS21013 AS21056 AS21100 AS21215 AS21263 AS21320 AS21409 AS21473 AS21859 AS22356 AS22697 AS23028 AS23201 AS23344 AS23576 AS23756 AS23855 AS23947 AS23953 AS24204 AS24429 AS24482 AS24492 AS24527 AS24586 AS24724 AS24730 AS24753 AS24875 AS24904 AS24940 AS24961 AS25133 AS25160 AS25220 AS25369 AS25374 AS25428 AS25455 AS25549 AS25818 AS25820 AS26141 AS26464 AS26667 AS27523 AS28283 AS28458 AS28725 AS28917 AS28929 AS29028 AS29030 AS29049 AS29063 AS29075 AS29119 AS29140 AS29141 AS29263 AS29311 AS29314 AS29467 AS29505 AS29632 AS29670 AS29687 AS30058 AS30103 AS30132 AS30736 AS30781 AS30844 AS30855 AS30870 AS30925 AS30999 AS31084 AS31133 AS31319 AS31449 AS31477 AS31490 AS31500 AS31515 AS31638 AS31673 AS32035 AS32244 AS32437 AS32590 AS32787 AS32934 AS33353 AS33425 AS33891 AS33921 AS33986 AS34019 AS34087 AS34154 AS34177 AS34224 AS34288 AS34300 AS34309 AS34343 AS34347 AS34368 AS34373 AS34577 AS34612 AS34655 AS34696 AS34756 AS34772 AS34779 AS34942 AS34953 AS34968 AS35000 AS35179 AS35224 AS35280 AS35320 AS35332 AS35360 AS35432 AS35574 AS35598 AS35729 AS35753 AS35758 AS35773 AS35793 AS36182 AS36236 AS36351 AS36692 AS36864 AS36994 AS37100 AS37468 AS37497 AS37645 AS37662 AS37721 AS37739 AS38040 AS38082 AS38158 AS38182 AS38193 AS38230 AS38778 AS38880 AS38965 AS38983 AS39090 AS39120 AS39122 AS39156 AS39180 AS39326 AS39351 AS39386 AS39396 AS39409 AS39521 AS39526 AS39563 AS39587 AS39637 AS39647 AS39686 AS39702 AS39704 AS39839 AS39923 AS40401 AS40627 AS40776 AS40850 AS40999 AS41041 AS41051 AS41090 AS41405 AS41480 AS41529 AS41666 AS41820 AS41887 AS41913 AS41960 AS41998 AS42093 AS42156 AS42184 AS42295 AS42385 AS42517 AS42541 AS42567 AS42649 AS42707 AS42841 AS42861 AS42947 AS43139 AS43190 AS43289 AS43350 AS43366 AS43566 AS43668 AS43727 AS43733 AS43942 AS44034 AS44103 AS44141 AS44299 AS44439 AS44529 AS44592 AS44600 AS44608 AS44620 AS44733 AS44735 AS44788 AS44854 AS44901 AS44949 AS45014 AS45102 AS45147 AS45352 AS45430 AS45489 AS45701 AS45899 AS45903 AS46427 AS46844 AS47147 AS47172 AS47195 AS47263 AS47481 AS47526 AS47674 AS47689 AS47836 AS47927 AS47957 AS47973 AS48185 AS48284 AS48314 AS48345 AS48362 AS48519 AS48522 AS48596 AS48635 AS48642 AS48858 AS48886 AS48919 AS48927 AS49033 AS49106 AS49127 AS49206 AS49362 AS49434 AS49453 AS49463 AS49544 AS49581 AS49585 AS49600 AS49605 AS49627 AS49653 AS49685 AS49820 AS49870 AS49981 AS50049 AS50050 AS50072 AS50083 AS50169 AS50245 AS50263 AS50266 AS50272 AS50295 AS50300 AS50309 AS50316 AS50324 AS50340 AS50399 AS50414 AS50533 AS50581 AS50629 AS50655 AS50673 AS50737 AS50763 AS50766 AS50858 AS50869 AS50889 AS50923 AS50999 AS51202 AS51276 AS51333 AS51345 AS51392 AS51505 AS51514 AS51517 AS51752 AS51758 AS51873 AS51907 AS51978 AS52000 AS52025 AS52075 AS52112 AS52320 AS52389 AS53062 AS53334 AS54825 AS55219 AS55256 AS55285 AS55329 AS55685 AS55850 AS56368 AS56381 AS56382 AS56396 AS56630 AS56654 AS56655 AS56665 AS56675 AS56704 AS57029 AS57032 AS57043 AS57112 AS57124 AS57154 AS57344 AS57626 AS57634 AS57758 AS57795 AS57866 AS57965 AS57976 AS58075 AS58095 AS58138 AS58243 AS58272 AS58291 AS58349 AS58453 AS58511 AS58715 AS58821 AS59318 AS59545 AS59554 AS59570 AS59624 AS59642 AS59692 AS59711 AS59832 AS59865 AS59886 AS59900 AS59985 AS60022 AS60111 AS60144 AS60202 AS60230 AS60326 AS60350 AS60404 AS60431 AS60476 AS60539 AS60550 AS60557 AS60602 AS60822 AS60880 AS60900 AS61031 AS61049 AS61200 AS61349 AS61568 AS61573 AS61599 AS61624 AS61805 AS62005 AS62044 AS62068 AS62097 AS62105 AS62167 AS62240 AS62246 AS62296 AS62390 AS62713 AS62856 AS63023 AS63113 AS63473 AS63741 AS63859 AS63927 AS64049 AS64289 AS64313 AS64475 AS131219 AS131958 AS132164 AS132203 AS132337 AS132876 AS133352 AS133504 AS133613 AS133815 AS135391 AS136907 AS137182 AS137311 AS137316 AS137367 AS137409 AS138322 AS138881 AS138915 AS139057 AS139428 AS139628 AS139951 AS141889 AS147120 AS149353 AS149670 AS149909 AS150242 AS150554 AS150921 AS153895 AS153961 AS196752 AS196844 AS196954 AS196997 AS197078 AS197156 AS197235 AS197301 AS197727 AS197790 AS197899 AS197981 AS198016 AS198020 AS198046 AS198089 AS198150 AS198225 AS198352 AS198651 AS198763 AS198792 AS198930 AS199081 AS199181 AS199408 AS199471 AS199483 AS199524 AS199610 AS199938 AS199939 AS199996 AS200020 AS200023 AS200052 AS200132 AS200184 AS200197 AS200232 AS200249 AS200373 AS200478 AS200899 AS200995 AS201228 AS201290 AS201372 AS201401 AS201502 AS201650 AS201791 AS201877 AS202022 AS202053 AS202418 AS202425 AS202585 AS202591 AS202827 AS202954 AS203062 AS203101 AS203489 AS203724 AS203932 AS204003 AS204059 AS204092 AS204151 AS204457 AS204539 AS204995 AS205112 AS205206 AS205638 AS205668 AS205689 AS205711 AS205755 AS205915 AS205941 AS205943 AS206014 AS206238 AS206264 AS206281 AS206292 AS206350 AS206426 AS206446 AS206521 AS206676 AS206735 AS206813 AS206836 AS206963 AS207176 AS207283 AS207315 AS207375 AS207487 AS207489 AS207594 AS207777 AS207778 AS207790 AS207866 AS207994 AS208034 AS208059 AS208389 AS208608 AS208808 AS208844 AS208915 AS208959 AS208972 AS209150 AS209162 AS209267 AS209528 AS209650 AS209823 AS209870 AS210036 AS210320 AS210464 AS210501 AS210645 AS210667 AS210732 AS210752 AS210890 AS210897 AS210957 AS211037 AS211041 AS211251 AS211286 AS211316 AS211588 AS211623 AS211713 AS211826 AS211882 AS212232 AS212341 AS212477 AS212483 AS212635 AS212855 AS212895 AS212928 AS213050 AS213052 AS213373 AS213392 AS213438 AS213449 AS213467 AS213576 AS213622 AS213641 AS213753 AS213822 AS213959 AS214022 AS214145 AS214271 AS214329 AS214668 AS214675 AS214783 AS214809 AS215017 AS215085 AS215212 AS215444 AS215512 AS215638 AS215680 AS215724 AS216066 AS216071 AS216092 AS216096 AS216107 AS216251 AS216265 AS216302 AS216333 AS216456 AS262287 AS262355 AS262725 AS263444 AS263528 AS263903 AS263998 AS264997 AS266435 AS270735 AS270814 AS271253 AS328112 AS328366 AS328748 AS394354 AS396986

AS1103 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS1103

7 upstreams

AS3257 AS6830 AS7575 AS11537 AS20562 AS20965 AS24785

AS1103 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS1103 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS1103

24 downstreams

AS112 AS288 AS1101 AS1102 AS1104 AS1124 AS1128 AS1133 AS1140 AS1145 AS1147 AS1152 AS1161 AS1199 AS1837 AS1888 AS3333 AS12654 AS25152 AS25182 AS42165 AS203769 AS206130 AS215088

AS1103 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.