AS12703 — PULSANT-AS Pulsant (Scotland) Ltd

Network type: hosting

AS12703 announces 64 IPv4 prefixes covering 183,040 addresses and 7 IPv6 prefixes.

About this network

Six IPv6 /32s, which is six registry memberships, which is six companies that used to exist.

What it's used for

• Hosting, colocation and transit in the UK. 179,456 addresses in 57 IPv4 prefixes, six IPv6 prefixes, and 147 observed BGP neighbours.

Notable

• Three acquired brands survive in the netnames: UK-ONYX-960119, UK-ONYX-20031216, UK-EDNET-990924, UK-EDNET-20040831, UK-ASUK-20020429 and UK-ASUK-20101221.
• The oldest is January 1996; the newest of these is December 2010.
• All six IPv6 announcements are /32s from unrelated aggregates: 2a00:85a0::, 2a01:5ae0::, 2a01:6ca0::, 2a02:16e0::, 2a02:16f8:: and 2a02:2b38::.
• Six sampled addresses answered, all under a fourth brand: servers.dedipower.net.
• Two RDAP records could not be retrieved.

Interesting

• A /32 is the standard IPv6 allocation to one registry member. Holding six of them, from aggregates issued years apart, is not how a single company grows; it is what happens when six memberships are bought and folded into one operation. The IPv6 table therefore counts the acquisitions more cleanly than any of the IPv4 records do.
• The netnames date those purchases from the other direction. UK-ONYX-960119 was filed by a company that no longer exists, and it still describes the same addresses thirty years later, because renaming a registry object gains nothing and risks breaking every reference to it.
• Four brands appear across the AS name, the netnames and the reverse DNS. Anyone trying to attribute this address space by name gets four different answers depending on which record they read, and all four are correct.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.10.16.0/20
• 5.153.64.0/19
• 5.172.152.0/21
• 31.15.104.0/21
• 31.47.216.0/21
• 31.207.43.0/24
• 31.210.232.0/21
• 46.23.225.0/24
• 46.23.226.0/23
• 46.23.228.0/22
• 46.236.0.0/18
• 46.249.192.0/19
• 81.29.64.0/19
• 82.113.160.0/19
• 83.136.3.0/24
• 83.136.6.0/24
• 83.136.64.0/21
• 84.19.224.0/19
• 84.45.15.0/24
• 87.246.64.0/18
• 89.150.51.0/24
• 89.151.64.0/18
• 91.198.3.0/24
• 91.198.99.0/24
• 91.209.178.0/24
• 91.239.73.0/24
• 93.94.72.0/21
• 116.68.184.0/21
• 178.236.144.0/20
• 185.8.111.0/24
• 185.29.44.0/24
• 185.29.224.0/23
• 185.38.104.0/22
• 185.43.48.0/22
• 185.43.76.0/22
• 185.59.60.0/24
• 185.59.62.0/23
• 185.64.88.0/22
• 185.68.112.0/22
• 185.71.100.0/22
• 185.71.184.0/22
• 185.94.184.0/23
• 185.94.186.0/24
• 185.96.48.0/22
• 185.97.20.0/22
• 185.97.28.0/22
• 185.153.100.0/22
• 185.174.224.0/24
• 185.246.51.0/24
• 193.29.223.0/24
• 193.33.109.0/24
• 193.105.231.0/24
• 194.164.114.0/24
• 194.176.64.0/19
• 195.47.244.0/24
• 195.68.228.0/23
• 195.78.94.0/23
• 195.97.192.0/18
• 195.248.70.0/24
• 212.20.224.0/19
• 213.131.96.0/19
• 217.22.144.0/20
• 217.30.112.0/20
• 217.171.111.0/24
• 2001:4dc0::/32
• 2a00:85a0::/32
• 2a01:5ae0::/32
• 2a01:6ca0::/32
• 2a02:16e0::/32
• 2a02:16f8::/32
• 2a02:2b38::/32

Upstream networks

• AS6461 Zayo Bandwidth
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS34549 meerfarbig GmbH & Co. KG
• AS50304 Blix Solutions AS
• AS37721 Virtual Technologies & Solutions
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS213241 TECHIT.BE SRL
• AS34019 Hivane Association
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS293 ESnet
• AS50673 Serverius Holding B.V.
• AS34927 iFog GmbH
• AS12779 IT.Gate S.p.A.
• AS3216 PJSC "Vimpelcom"
• AS3741 Dimension Data
• AS17639 Converge ICT Solutions Inc.
• AS13030 Init7 (Switzerland) Ltd.
• AS9002 RETN Limited

Downstream networks

• AS49683 MASSIVEGRID LTD
• AS42332 EKCO LONDON LIMITED
• AS201471 Bigstep Cloud Limited
• AS60610 Amito Ltd
• AS39208 I.P. Integration Limited
• AS48412 Podsystem Limited
• AS210282 Frontier Technology Limited
• AS48686 oRe Networks Limited
• AS43081 World News PTE. LTD
• AS202212 DWebs Ltd
• AS206681 Ivista Limited
• AS41489 Watchfront Limited
• AS51845 WATERSTONS LIMITED
• AS203128 NEWCASTLE STRATEGIC SOLUTIONS LIMITED
• AS207194 Total Computer Services Ltd
• AS21077 Specialist Computer Centres Plc
• AS35259 APM Internet Ltd
• AS205599 A.B.F.HOLDINGS LIMITED
• AS206312 Netmore Group AB
• AS20712 Andrews & Arnold Ltd
• AS8161 Insight Direct USA, Inc.
• AS41203 DPDgroup UK Ltd
• AS204598 Village Networks Ltd.
• AS16645 EPIQ Systems, Inc
• AS65006

Adjacent networks

• AS6461 Zayo Bandwidth
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS49683 MASSIVEGRID LTD
• AS60610 Amito Ltd
• AS42332 EKCO LONDON LIMITED
• AS201471 Bigstep Cloud Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS39208 I.P. Integration Limited
• AS50304 Blix Solutions AS
• AS48412 Podsystem Limited
• AS37721 Virtual Technologies & Solutions
• AS50300 CustodianDC Limited
• AS213241 TECHIT.BE SRL
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS210282 Frontier Technology Limited
• AS12779 IT.Gate S.p.A.
• AS3741 Dimension Data
• AS48362 Stadtwerke Feldkirch
• AS48686 oRe Networks Limited
• AS202212 DWebs Ltd

Routing security

• RPKI: 42 valid, 0 invalid and 29 not-found announcements; 44 ROAs.
• ASPA: none published.
• IRR: 99% of announcements registered; 124 route objects.
• Listed in as-sets: AS-BRASSHORNCOMMS, AS-BSVE:AS-LINX-PEERS-1, AS-BSVE:AS-LINX-PEERS-2, AS-BSVE:AS-LIPEX-PEERS-1, AS-BSVE:AS-LIPEX-PEERS-2, AS-C4LPEERS, AS-CONNETU-LINX, AS-DEFENSE, AS-EDNET, AS-GBLX, AS-LIQUID-LINXPEERS, AS-LUMISON, AS-LUMISON-V6, AS-MANDA-AMSIX-PEERS-V4, AS-MANDA-AMSIX-PEERS-V6, AS-MANDA-LINX-PEERS-V4, AS-MANDA-LINX-PEERS-V6, AS-PLUSNETUK:AS-LINX-PEERS-PRI, AS-PLUSNETUK:AS-LINX-PEERS-SEC, AS-PULSANT, AS-PULSANT-V6, AS-WORLD-IX, AS13030:AS-PEERS, AS29169:AS-PEERS4, AS29169:AS-PEERS6.

Internet exchanges

• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• LINX Manchester — Manchester, United Kingdom
• LINX Scotland — Scotland, United Kingdom