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자율 시스템

AS1103

SURF B.V.

SURF B.V. The Netherlands 🌐 surf.nl
공지된 IP
7,195,648
CIDR 프리픽스
120
ASN
AS1103

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

57/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Multiple-origin (MOAS) routing anomaly −12
  • Enterprise allocation +4
  • Trust score 57 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About SURFnet

SURF is an organization that develops, implements and maintains the national research and education network (NREN) of the Netherlands. It operates the national research network formally called SURFnet.

Founded
1989
Headquarters
Utrecht
Parent
SURF (Samenwerkende Universitaire Rekenfaciliteiten)
Official website ↗ Summary from Wikipedia, CC BY-SA 4.0 · Data from Wikidata

⚠ 1 MOAS 접두사 — 다중 원본 AS 감지됨

모든 MOAS 이상 →

이전에 AS에서 시작된 안정적인 접두사1103 는 당사의 RIPE RIS 수집기에서 감지된 다른 ASN(MOAS — Multiple-Origin AS)에 의해 현재 공지되고 있습니다. 이는 종종 양성(애니캐스트, 멀티호밍 또는 최근 전송)이지만, 경로 유출 또는 접두사 하이재킹을 나타낼 수 있으므로 검사할 가치가 있습니다.

접두사원본 AS마지막 감지 (UTC)
145.98.16.0/24 AS1103, AS1653 2026-07-24 11:23:47

Network profile

Source: PeeringDB →
Network type Educational/Research
Traffic level 500-1000Gbps
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS1103:AS-SURF

Present at 3 internet exchanges: NL-ix: Main, AMS-IX, Frys-IX

Website ↗

AS1103 — 전 세계 IP 발자취

AS가 있는 도시1103 측정 가능한 IPv4 할당을 가지고 있습니다. 점을 클릭하여 해당 도시 페이지를 엽니다. 크기와 색상은 IP 수에 따라 달라집니다.

3D 지구본에서 보기 →

상위 CIDR 범위

CIDRIPPTR Density조직국가StateCity
145.144.0.0/12 1.05M
86.5%
SURF B.V. NL Gelderland Wehl
145.160.0.0/12 1.05M
0.0%
SURF B.V. NL — —
145.144.0.0/13 524.3K
73.1%
SURF B.V. NL Gelderland Wehl
145.88.0.0/14 262.1K
18.5%
SURF B.V. NL South Holland Leiden
145.120.0.0/14 262.1K
50.0%
SURF B.V. NL Gelderland Barneveld
145.140.0.0/14 262.1K
75.0%
SURF B.V. NL South Holland Rotterdam
145.148.0.0/14 262.1K
0.0%
SURF B.V. NL — —
145.2.0.0/15 131.1K
25.2%
SURF B.V. NL Overijssel Deventer
145.28.0.0/15 131.1K
10.8%
SURF B.V. NL North Holland Spierdijk
145.38.0.0/15 131.1K
1.3%
SURF B.V. NL — —
145.48.0.0/15 131.1K
0.0%
SURF B.V. NL North Brabant Oosterhout
145.74.0.0/15 131.1K
14.7%
SURF B.V. NL Gelderland Nijmegen
145.92.0.0/15 131.1K
0.0%
SURF B.V. NL North Brabant Eindhoven
145.124.0.0/15 131.1K
0.2%
SURF B.V. NL — —
145.136.0.0/15 131.1K
57.9%
SURF B.V. NL South Holland Rotterdam
129.125.0.0/16 65.5K
32.7%
SURF B.V. NL Groningen Groningen
130.37.0.0/16 65.5K
14.0%
SURF B.V. NL North Holland Amsterdam
131.174.0.0/16 65.5K
5.4%
SURF B.V. NL Gelderland Wijchen
131.211.0.0/16 65.5K
19.6%
SURF B.V. NL Utrecht Utrecht
131.224.0.0/16 65.5K
0.8%
SURF B.V. NL Utrecht De Bilt
132.229.0.0/16 65.5K
10.2%
SURF B.V. NL South Holland Leiden
134.221.0.0/16 65.5K
3.2%
SURF B.V. NL — —
136.231.0.0/16 65.5K
11.8%
SURF B.V. NL South Holland Delft
137.56.0.0/16 65.5K
48.7%
SURF B.V. NL North Brabant Tilburg
137.120.0.0/16 65.5K
1.8%
SURF B.V. NL Limburg Maastricht
137.224.0.0/16 65.5K
0.8%
SURF B.V. NL Gelderland Wageningen
139.63.0.0/16 65.5K
11.2%
SURF B.V. NL South Holland Delft
141.252.0.0/16 65.5K
0.1%
SURF B.V. NL Friesland Leeuwarden
143.121.0.0/16 65.5K
1.2%
SURF B.V. NL Utrecht Utrecht
145.0.0.0/16 65.5K
0.4%
SURF B.V. NL North Holland Amsterdam
145.5.0.0/16 65.5K
28.1%
SURF B.V. NL South Holland Rotterdam
145.9.0.0/16 65.5K
0.0%
SURF B.V. NL — —
145.19.0.0/16 65.5K
29.1%
SURF B.V. NL Zeeland Flushing
145.20.0.0/16 65.5K
5.1%
SURF B.V. NL — —
145.23.0.0/16 65.5K
0.1%
SURF B.V. NL Utrecht Bilthoven
145.24.0.0/16 65.5K
18.4%
SURF B.V. NL North Holland Egmond aan den Hoef
145.33.0.0/16 65.5K
0.2%
SURF B.V. NL Groningen Hoogezand
145.37.0.0/16 65.5K
0.0%
SURF B.V. NL Groningen Groningen
145.41.0.0/16 65.5K
0.0%
SURF B.V. NL — —
145.44.0.0/16 65.5K
38.7%
SURF B.V. NL Overijssel Ommen
145.51.0.0/16 65.5K
0.6%
SURF B.V. NL — —
145.52.0.0/16 65.5K
1.8%
SURF B.V. NL South Holland The Hague
145.76.0.0/16 65.5K
0.1%
SURF B.V. NL Overijssel Hengelo
145.81.0.0/16 65.5K
61.1%
SURF B.V. NL North Holland Amsterdam
145.85.0.0/16 65.5K
0.2%
SURF B.V. NL North Brabant Eindhoven
145.95.0.0/16 65.5K
0.0%
SURF B.V. NL — —
145.96.0.0/16 65.5K
98.5%
SURF B.V. NL — —
145.101.0.0/16 65.5K
66.1%
SURF B.V. NL North Brabant Breda
145.103.0.0/16 65.5K
100.0%
SURF B.V. NL South Holland The Hague
145.108.0.0/16 65.5K
89.8%
SURF B.V. NL North Holland Amstelveen
145.117.0.0/16 65.5K
100.0%
SURF B.V. NL North Holland Amsterdam
145.118.0.0/16 65.5K
49.9%
SURF B.V. NL South Holland Leiden
145.126.0.0/16 65.5K
45.0%
SURF B.V. NL Overijssel Enschede
145.138.0.0/16 65.5K
74.6%
SURF B.V. NL Overijssel Raalte
145.144.0.0/16 65.5K
0.0%
SURF B.V. NL Gelderland Wehl
145.147.0.0/16 65.5K
0.0%
SURF B.V. NL — —
156.83.0.0/16 65.5K
1.5%
SURF B.V. NL South Holland Rotterdam
192.87.0.0/16 65.5K
49.8%
SURF B.V. NL North Holland Amsterdam
194.171.0.0/16 65.5K
0.0%
SURF B.V. NL Utrecht Utrecht
195.169.0.0/16 65.5K
25.4%
SURF B.V. NL Utrecht Amersfoort
145.1.0.0/17 32.8K
0.0%
SURF B.V. NL North Holland Den Hoorn
145.97.128.0/17 32.8K
96.0%
SURF B.V. NL Groningen Groningen
145.98.128.0/17 32.8K
100.0%
SURF B.V. NL — —
145.100.128.0/17 32.8K
45.4%
SURF B.V. NL Limburg Venlo
145.107.128.0/17 32.8K
0.4%
SURF B.V. NL Utrecht Utrecht
145.127.0.0/17 32.8K
100.0%
SURF B.V. NL Limburg Maastricht
145.145.0.0/17 32.8K
0.0%
SURF B.V. NL — —
145.146.128.0/17 32.8K
0.0%
SURF B.V. NL — —
194.171.128.0/17 32.8K
50.2%
SURF B.V. NL Utrecht Utrecht
145.97.64.0/18 16.4K
74.9%
SURF B.V. NL Overijssel Saasveld
145.98.64.0/18 16.4K
0.3%
SURF B.V. NL — —
145.100.0.0/18 16.4K
14.1%
SURF B.V. NL North Holland Amsterdam
145.102.64.0/18 16.4K
64.1%
SURF B.V. NL North Holland Amsterdam
145.102.192.0/18 16.4K
37.5%
SURF B.V. NL Gelderland Nijmegen
145.107.64.0/18 16.4K
0.0%
SURF B.V. NL Utrecht Utrecht
145.116.64.0/18 16.4K
0.0%
SURF B.V. NL South Holland The Hague
145.116.128.0/18 16.4K
0.0%
SURF B.V. NL Gelderland Nijmegen
145.145.192.0/18 16.4K
0.0%
SURF B.V. NL — —
145.146.64.0/18 16.4K
0.0%
SURF B.V. NL — —
194.171.0.0/18 16.4K
42.7%
SURF B.V. NL North Holland Amsterdam
145.97.0.0/19 8.2K
31.3%
SURF B.V. NL Gelderland Nijmegen
145.98.32.0/19 8.2K
100.0%
SURF B.V. NL — —
145.100.64.0/19 8.2K
25.0%
SURF B.V. NL North Holland Amsterdam
145.102.32.0/19 8.2K
0.5%
SURF B.V. NL South Holland Leiden
145.102.160.0/19 8.2K
0.4%
SURF B.V. NL North Holland Beverwijk
145.107.32.0/19 8.2K
25.2%
SURF B.V. NL Limburg Horst aan de Maas Municipality
145.116.224.0/19 8.2K
0.0%
SURF B.V. NL Overijssel Borne
145.145.128.0/19 8.2K
0.0%
SURF B.V. NL — —
145.146.32.0/19 8.2K
0.0%
SURF B.V. NL — —
194.171.64.0/19 8.2K
32.0%
SURF B.V. NL South Holland Leiden
145.97.48.0/20 4.1K
94.2%
SURF B.V. NL Overijssel Vroomshoop
145.98.16.0/20 4.1K
93.7%
SURF B.V. NL — —
145.100.96.0/20 4.1K
16.9%
SURF B.V. NL North Holland Amsterdam
145.102.16.0/20 4.1K
51.1%
SURF B.V. NL — —
145.102.144.0/20 4.1K
100.0%
SURF B.V. NL North Brabant Eindhoven
145.107.16.0/20 4.1K
0.0%
SURF B.V. NL — —
145.116.192.0/20 4.1K
11.6%
SURF B.V. NL — —
145.145.176.0/20 4.1K
0.0%
SURF B.V. NL — —
145.146.16.0/20 4.1K
0.0%
SURF B.V. NL — —
194.13.16.0/20 4.1K
0.0%
SURF B.V. NL — —

BGP 공지 접두사

실시간 BGP 이상 →

접두사 AS1103 당사의 RIPE RIS 수집기에서 관찰된 BGP에서 실제로 시작됩니다. 이 실시간 라우팅 보기는 위의 레지스트리 할당과 다를 수 있습니다.

Prefix공지 샘플마지막 확인
145.81.0.0/16 30,962 2026-07-24 11:27:40
145.97.16.0/22 25,989 2026-07-24 11:27:42
145.20.0.0/16 25,278 2026-07-24 11:27:42
136.231.0.0/16 23,676 2026-07-24 11:27:42
145.33.0.0/16 23,582 2026-07-24 11:27:46
145.37.0.0/16 23,393 2026-07-24 11:27:46
145.100.0.0/15 22,694 2026-07-24 11:27:39
145.102.0.0/16 22,656 2026-07-24 11:27:39
145.38.0.0/15 22,323 2026-07-24 11:27:39
131.224.0.0/16 22,295 2026-07-24 11:27:40
145.118.0.0/16 21,887 2026-07-24 11:27:39
145.98.0.0/16 21,830 2026-07-24 11:27:40
132.229.0.0/16 21,630 2026-07-24 11:27:42
192.42.124.0/22 21,623 2026-07-24 11:27:40
145.97.0.0/20 21,545 2026-07-24 11:27:42
137.224.0.0/16 21,530 2026-07-24 11:27:42
145.96.0.0/16 21,509 2026-07-24 11:27:40
145.116.64.0/18 21,508 2026-07-24 11:27:42
145.97.20.0/22 21,508 2026-07-24 11:27:42
145.97.24.0/21 21,505 2026-07-24 11:27:42
145.107.0.0/16 21,504 2026-07-24 11:27:40
131.174.0.0/16 21,354 2026-07-24 11:27:40
145.44.0.0/16 21,313 2026-07-24 11:27:42
145.48.0.0/15 21,208 2026-07-24 11:27:40
145.107.24.0/22 20,994 2026-07-24 11:27:40
145.103.0.0/16 20,990 2026-07-24 11:27:45
145.97.48.0/20 20,980 2026-07-24 11:27:42
145.41.0.0/16 20,578 2026-07-24 11:27:42
130.37.0.0/16 20,383 2026-07-24 11:27:44
145.108.0.0/16 20,211 2026-07-24 11:27:44
145.98.16.0/24 20,139 2026-07-24 11:27:40
192.31.231.0/24 19,952 2026-07-24 11:27:42
194.104.124.0/23 19,924 2026-07-24 11:27:42
145.51.0.0/16 19,887 2026-07-24 11:27:42
194.104.240.0/20 19,847 2026-07-24 11:27:42
193.176.235.0/24 19,827 2026-07-24 11:27:42
194.26.12.0/22 19,813 2026-07-24 11:27:42
145.24.0.0/16 19,758 2026-07-24 11:27:42
145.91.0.0/16 19,731 2026-07-24 11:27:42
193.177.176.0/22 19,722 2026-07-24 11:27:42
141.252.0.0/16 19,637 2026-07-24 11:27:42
194.13.16.0/20 19,562 2026-07-24 11:27:42
145.124.0.0/15 19,554 2026-07-24 11:27:39
145.9.0.0/16 18,892 2026-07-24 11:27:42
195.169.0.0/16 18,609 2026-07-24 11:27:39
145.126.0.0/16 18,418 2026-07-24 11:27:39
194.171.0.0/16 17,977 2026-07-24 11:27:39
145.137.128.0/18 17,888 2026-07-24 11:27:42
145.120.0.0/14 17,597 2026-07-24 11:27:39
145.140.0.0/14 17,394 2026-07-24 11:27:39

상위 표시 50 of 100 샘플 볼륨별 공지 접두사.

Frequently Asked Questions

AS1103는 무엇입니까?

AS1103는 SURF B.V.에 할당된 자율 시스템 번호(Autonomous System Number)입니다. ASN은 특정 IP 주소 집합을 제어하고 BGP(Border Gateway Protocol)를 통해 인터넷에서 트래픽이 라우팅되는 방식을 결정하는 네트워크를 식별합니다.

AS1103는 몇 개의 IP 주소를 공지합니까?

AS1103는 120개의 라우팅된 CIDR 접두사를 통해 7.20M개의 IPv4 주소를 공지합니다. 이 네트워크는 The Netherlands에 등록되어 있습니다.

AS1103는 누가 운영합니까?

AS1103는 SURF B.V.에 의해 운영됩니다. 이 조직은 The Netherlands에 기반을 두고 있습니다. 조직 페이지에서 모든 IP 범위 및 관련 AS를 볼 수 있습니다.

AS1103는 어느 국가에 등록되어 있습니까?

AS1103는 The Netherlands에 등록되어 있습니다. 이는 네트워크 운영자의 본사가 위치한 곳을 나타내지만, 해당 AS가 공지하는 IP 주소는 전 세계 사용자에게 서비스를 제공할 수 있습니다.

최종 업데이트: 2026-07-24 11:25:32 UTC
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