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AS13037

ZEN-AS

Zen Internet - UK

Registry

Authoritative registration data

AS number
13037
Name
ZEN-AS
Organisation
Zen Internet - UK
Country
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

37

IPv6 prefixes

1

Total announced

38

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS13037
82.68.0.0/15 IPv4 /15 not checked
217.155.0.0/16 IPv4 /16 not checked
51.148.0.0/16 IPv4 /16 not checked
51.155.0.0/16 IPv4 /16 not checked
82.71.0.0/16 IPv4 /16 not checked
146.66.64.0/18 IPv4 /18 not checked
62.3.64.0/18 IPv4 /18 not checked
77.104.128.0/18 IPv4 /18 not checked
88.97.0.0/18 IPv4 /18 not checked
212.23.0.0/19 IPv4 /19 not checked
88.98.128.0/19 IPv4 /19 not checked
88.98.32.0/19 IPv4 /19 not checked
88.98.64.0/19 IPv4 /19 not checked
188.122.32.0/20 IPv4 /20 not checked
88.97.64.0/20 IPv4 /20 not checked
88.97.96.0/20 IPv4 /20 not checked
88.98.0.0/20 IPv4 /20 not checked
88.98.176.0/20 IPv4 /20 not checked
188.122.48.0/21 IPv4 /21 not checked
88.98.160.0/21 IPv4 /21 not checked
88.98.24.0/21 IPv4 /21 not checked
185.183.100.0/22 IPv4 /22 not checked
185.81.232.0/22 IPv4 /22 not checked
188.122.56.0/22 IPv4 /22 not checked
88.97.88.0/22 IPv4 /22 not checked
88.98.172.0/22 IPv4 /22 not checked
185.169.116.0/23 IPv4 /23 not checked
185.169.118.0/23 IPv4 /23 not checked
188.122.60.0/23 IPv4 /23 not checked
88.98.16.0/23 IPv4 /23 not checked
88.98.170.0/23 IPv4 /23 not checked
88.98.22.0/23 IPv4 /23 not checked
185.6.135.0/24 IPv4 /24 not checked
188.122.63.0/24 IPv4 /24 not checked
88.98.18.0/24 IPv4 /24 not checked
88.98.21.0/24 IPv4 /24 not checked
91.235.214.0/24 IPv4 /24 not checked
2a02:8010::/29 IPv6 /29 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS13037
Address families
LINX LON1: Main 200,000 Mbps IPv4 · IPv6
LINX LON2 200,000 Mbps IPv4 · IPv6
LINX Manchester 100,000 Mbps IPv4 · IPv6
LONAP: LON0 80,000 Mbps IPv4 · IPv6

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS13037 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

49 networks seen before AS13037 in AS paths

Observed upstreams
Families
AS1299 TWELVE99 121 2,139
v4 v6
AS6461 ZAYO-6461 114 1,929
v4 v6
AS2914 NTT-DATA-2914 81 1,302
v4 v6
AS9002 RETN-AS 77 1,076
v4 v6
AS6939 HURRICANE 134 837
v4 v6
AS25091 IP-Max 36 432
v4 v6
AS13030 INIT7 38 428
v4 v6
AS33891 CORE-BACKBONE 26 395
v4 v6
AS5405 24 280
v4 v6
AS34549 MEER-AS 26 254
v4 v6
AS35280 F5 21 229
v4 v6
AS14840 ASN14840 10 215
v4 v6
AS48362 TKSWF-AS 9 145
v4 v6
AS29075 13 130
v4 v6
AS50304 15 126
v4
AS3214 XTOM 9 126
v4 v6
AS34927 iFog-GmbH 8 126
v4 v6
AS4455 8 120
v4 v6
AS137409 GSLNETWORKS-AS-AP 7 116
v4
AS22356 8 114
v4 v6
AS34177 CELESTE-AS 10 85
v4 v6
AS37497 ORG-NPL3-AFRINIC 10 84
v4
AS39351 ESAB-AS 8 84
v4 v6
AS9044 5 84
v4
AS12552 4 84
v4 v6
AS7195 7195 9 80
v4 v6
AS6057 6057 8 80
v4 v6
AS37100 7 79
v4
AS1267 6 78
v4
AS8220 COLT 12 75
v4 v6
AS20562 5 75
v4 v6
AS37468 ORG-AC4-AFRINIC 9 68
v4 v6
AS8455 6 44
v4 v6
AS3741 5 42
v4
AS7575 5 42
v4
AS15802 DU-AS1 5 42
v4
AS215638 AS-CILIX-LIMITED 4 42
v4 v6
AS15412 FLAG-AS 4 39
v4
AS6204 3 38
v4
AS31500 3 38
v4
AS58453 CMI-INT-HK 2 37
v4
AS8943 2 25
v4 v6
AS60171 5 7
v4
AS37282 4 4
v4
AS6663 2 2
v4
AS20764 RASCOM-AS 2 2
v6
AS41327 FIBERTELECOM-AS 2 2
v4
AS3216 SOVAM-AS 1 1
v4
AS21215 1 1
v4

No rows match “”.

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Observed downstreams

3 networks seen after AS13037 in AS paths

Observed downstreams
Families
AS208697 130 548
v4
AS51766 MFRS-AS 162 216
v4
AS44697 C3-UK 154 193
v4

No rows match “”.

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Uncertain adjacencies

39 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 4 298
v4 v6
AS12779 ITGATE 5 172
v4 v6
AS48185 5 129
v4 v6
AS25160 5 86
v4 v6
AS51185 MAINSTREAMING-AS 5 86
v4 v6
AS62167 5 86
v4 v6
AS212483 level86 5 86
v4 v6
AS49544 i3Dnet 4 84
v4 v6
AS37721 ORG-VTS1-AFRINIC 5 44
v4 v6
AS1828 UNITAS 5 43
v4 v6
AS3170 5 43
v4 v6
AS6424 5 43
v4 v6
AS6894 5 43
v4 v6
AS14630 INVESCO 5 43
v4 v6
AS15692 RAZORBLUE 5 43
v4 v6
AS17639 CONVERGE-AS 5 43
v4 v6
AS31742 SOTACONNECT 5 43
v4 v6
AS36236 NETACTUATE 5 43
v4 v6
AS42473 5 43
v4 v6
AS61573 5 43
v4 v6
AS198150 SIACOM-AS 5 43
v4 v6
AS207841 5 43
v4 v6
AS6667 5 42
v4
AS12969 5 42
v4
AS13237 LAMBDANET-AS 5 42
v4
AS28792 5 42
v4
AS37680 5 42
v4
AS271253 5 42
v4
AS18106 VIEWQWEST-SG-AP 4 42
v4 v6
AS34288 4 42
v4 v6
AS35266 EXN-AS 4 42
v4 v6
AS39122 4 42
v4 v6
AS48070 4 42
v4 v6
AS50300 4 42
v4 v6
AS16347 4 40
v4 v6
AS8426 CLARANET-AS 3 40
v4
AS8529 OMANTEL-AS 1 2
v6
AS31122 DIGIWEB-AS 1 1
v6
AS213241 TECHIT 1 1
v6

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.