143.121.0.0/16
AS1103 · SURF B.V.
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| Country |
Netherlands
|
| Domain | hetwkz.nl |
| ASN | AS1103 |
| Registry | RIPE |
| ID | UMCU |
WHOIS Details
inetnum: 143.121.0.0 - 143.121.255.255 netname: UMCU descr: Universitair Medisch Centrum Utrecht country: NL admin-c: UNS5-RIPE tech-c: UNS5-RIPE status: LEGACY mnt-by: SN-LIR-MNT mnt-irt: irt-SURFcert created: 1970-01-01T00:00:00Z last-modified: 2019-05-28T08:47:15Z source: RIPE role: UMCU Netwerk & Security address: Universitair Medisch Centrum Utrecht phone: +31(0)88 75 50700 e-mail: nwcluster@umcutrecht.nl nic-hdl: UNS5-RIPE mnt-by: SN-LIR-MNT created: 2019-05-28T08:39:41Z last-modified: 2019-05-28T08:39:41Z source: RIPE route: 143.121.0.0/16 descr: netname: AZUTRECHT descr: Academic Hospital Utrecht descr: Utrecht origin: AS1103 mnt-by: AS1103-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:31:59Z source: RIPE
Nearby Ranges
BGP prefixes that overlap with 143.0.0.0/8
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 143.118.0.0/16 | AS1881 | FMV | 65,536 |
| 143.207.0.0/16 | AS19106 | Andrews University | 65,536 |
| 143.88.0.0/16 | AS18553 | University of West Florida | 65,536 |
| 143.206.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.253.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.240.0.0/16 | AS174 | Performance Systems International, Incorporated | 65,536 |
| 143.221.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.248.0.0/16 | AS1781 | Korea Advanced Institute of Science and Technology | 65,536 |
| 143.135.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.191.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.213.0.0/16 | AS1602 | Headquarters, USAISC | 65,536 |
| 143.227.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.212.0.0/16 | AS1602 | Headquarters, USAISC | 65,536 |
| 143.74.0.0/16 | AS1600 | Headquarters, USAISC | 65,536 |
| 143.164.0.0/16 | AS12331 | Audi AG, Ingolstadt | 65,536 |
| 143.205.0.0/16 | AS1111 | Universitaet Klagenfurt | 65,536 |
| 143.76.0.0/16 | AS1540 | Headquarters, USAISC | 65,536 |
| 143.45.0.0/16 | AS1649 | Headquarters, USAISC | 65,536 |
| 143.74.0.0/16 | AS1540 | Headquarters, USAISC | 65,536 |
| 143.170.0.0/16 | AS16504 | Granite Telecommunications LLC | 65,536 |
| 143.69.0.0/16 | AS1540 | Headquarters, USAISC | 65,536 |
| 143.171.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.79.0.0/16 | AS1540 | Headquarters, USAISC | 65,536 |
| 143.84.0.0/16 | AS1540 | Headquarters, USAISC | 65,536 |
| 143.111.0.0/16 | AS11773 | The University Of Texas M.D. Anderson Cancer Center | 65,536 |
| 143.50.0.0/16 | AS1114 | Universitaet Graz | 65,536 |
| 143.59.0.0/16 | AS12083 | WideOpenWest Finance LLC | 65,536 |
| 143.69.0.0/16 | AS1590 | Headquarters, USAISC | 65,536 |
| 143.238.0.0/16 | AS1221 | Telstra Limited | 65,536 |
| 143.84.0.0/16 | AS1590 | Headquarters, USAISC | 65,536 |
| 143.101.0.0/16 | AS13636 | NEC Corporation of America | 65,536 |
| 143.102.0.0/16 | AS13636 | NEC Corporation of America | 65,536 |
| 143.108.0.0/16 | AS1251 | FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO | 65,536 |
| 143.216.0.0/16 | AS136572 | The Office of the Chief Information Officer (OCIO) | 65,536 |
| 143.176.0.0/16 | AS13127 | Tele2 Nederland B.V. | 65,536 |
| 143.225.0.0/16 | AS137 | UNI-Napoli Federico II | 65,536 |
| 143.46.0.0/16 | AS1637 | Headquarters, USAISC | 65,536 |
| 143.214.0.0/16 | AS1602 | Headquarters, USAISC | 65,536 |
| 143.73.0.0/16 | AS1501 | Headquarters, USAISC | 65,536 |
| 143.48.0.0/16 | AS13748 | Cold Spring Harbor Laboratory | 65,536 |
| 143.69.0.0/16 | AS1493 | Headquarters, USAISC | 65,536 |
| 143.76.0.0/16 | AS1502 | Headquarters, USAISC | 65,536 |
| 143.76.0.0/16 | AS1501 | Headquarters, USAISC | 65,536 |
| 143.168.0.0/16 | AS16509 | Amazon.com, Inc. | 65,536 |
| 143.74.0.0/16 | AS1516 | Headquarters, USAISC | 65,536 |
| 143.66.0.0/16 | AS13536 | Corning Community College | 65,536 |
| 143.239.0.0/16 | AS1213 | Campus Network | 65,536 |
| 143.67.0.0/16 | AS13536 | Jamestown Community College | 65,536 |
| 143.54.0.0/16 | AS19200 | Universidade Federal do Rio Grande do Sul | 65,536 |
Hosted domains
There are 268 domain names hosted across 31 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 143.121.245.42 | obesitasenzwangerschap.nl | 153 |
| 143.121.245.41 | radioembolisatie.nl | 36 |
| 143.121.197.36 | impact-health.nl | 24 |
| 143.121.245.30 | intoxicaties.eu | 16 |
| 143.121.197.21 | mbi-lifesciencesandhealth.com | 8 |
| 143.121.238.19 | wkzumcutrecht.nl | 4 |
| 143.121.197.32 | jc-research.eu | 3 |
| 143.121.197.38 | getreal-academy.org | 3 |
| 143.121.245.44 | umcu-wbo.nl | 2 |
| 143.121.197.12 | juliuscenter.nl | 2 |
| 143.121.197.23 | apothekerbijdehuisarts.nl | 2 |
| 143.121.245.29 | productnotification.nl | 2 |
| 143.121.245.34 | mijnkieszo.nl | 2 |
| 143.121.197.15 | epidemiologyonline.nl | 2 |
| 143.121.236.154 | e-modulewijzer.nl | 1 |
| 143.121.241.172 | toxicologie.eu | 1 |
| 143.121.236.156 | msfvoordocenten.nl | 1 |
| 143.121.197.28 | educate-it-engine.nl | 1 |
| 143.121.197.34 | jc-datacenter.nl | 1 |
| 143.121.179.128 | metaverifiedsupport.net | 1 |
Hosted domains API
Pingable IPs
106 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 143.121.243.254 |
1.33ms from Amsterdam,
NL
|
|
| 143.121.222.234 |
1.40ms from Amsterdam,
NL
|
|
| 143.121.197.40 |
1.46ms from Amsterdam,
NL
|
|
| 143.121.196.192 |
1.37ms from Amsterdam,
NL
|
|
| 143.121.237.82 |
2.03ms from Amsterdam,
NL
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 62.38.250.0 |
1.33ms from Athens,
GR
|
|
| 174.78.17.16 |
0.34ms from Atlanta,
US
|
|
| 73.114.93.80 |
9.00ms from Boston,
US
|
|
| 148.70.24.128 |
0.76ms from Chengdu,
CN
|
|
| 152.32.186.160 |
1.21ms from Hong Kong,
HK
|
|
| 196.39.240.80 |
1.59ms from Johannesburg,
ZA
|
|
| 31.205.129.160 |
3.59ms from Manchester,
GB
|
|
| 112.202.255.16 |
1.52ms from Manila,
PH
|
|
| 197.156.142.240 |
0.56ms from Nairobi,
KE
|
|
| 91.49.93.32 |
2.27ms from Nuernberg,
DE
|
|
| 126.25.16.48 |
15.33ms from Osaka,
JP
|
|
| 31.36.112.96 |
9.84ms from Paris,
FR
|
|
| 74.220.194.192 |
1.96ms from Salt Lake City,
US
|
|
| 4.150.9.192 |
0.22ms from San Antonio,
US
|
|
| 134.79.107.80 |
1.43ms from San Jose,
US
|
|
| 124.199.177.0 |
1.52ms from Seoul,
KR
|
|
| 81.205.243.176 |
2.57ms from Amsterdam,
NL
|
|
| 44.209.67.80 |
0.53ms from Ashburn,
US
|
|
| 173.64.113.160 |
5.50ms from Ashburn,
US
|
|
| 144.139.12.80 |
2.78ms from Brisbane,
AU
|
|
| 190.179.194.112 |
2.52ms from Buenos Aires,
AR
|
|
| 190.50.54.96 |
19.34ms from Buenos Aires,
AR
|
|
| 14.176.220.80 |
8.07ms from Da Nang,
VN
|
|
| 54.246.235.80 |
0.21ms from Dublin,
IE
|
|
| 200.1.129.0 |
9.34ms from Fortaleza,
BR
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Amsterdam, NL
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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