AS12778 — SGN

AS12778 announces 2 IPv4 prefixes covering 16,384 addresses and 1 IPv6 prefixes.

About this network

Two /19s eight years apart, the older one stamped 29 October 1999.

What it's used for

• A Slovenian internet provider. 16,384 addresses in two IPv4 prefixes, one IPv6 prefix, and 24 observed BGP neighbours.

Notable

• The inventory is 212.72.96.0/19 and 77.234.128.0/19, plus 2a02:d68::/32 in IPv6.
• Their netnames are SI-MEGA-M-19991029 and SI-MEGA-M-20070105.
• The AS handle is SGN, which matches neither the company name nor the netnames.
• Six sampled addresses were queried and none returned a name.

Interesting

• That 1999 date lands in a cluster. Other networks in this range carry netnames stamped 27 and 28 October 1999, held by companies in Austria, Kyrgyzstan, Switzerland and Turkey with nothing in common but a filing week. The registry processed applications in batches, and the batches are legible three decades later as runs of consecutive dates across unrelated holders.
• Two blocks, both /19s, eight years apart, and nothing in between. A provider that doubled its address space in one step rather than accumulating small allocations was either growing fast enough to justify the request or making one trip through a process it did not want to repeat.
• SGN as the AS handle, against MEGA M as the holder, is the usual result of a company changing names while its registry records did not. The handle is the oldest surviving name the organisation had.

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

Announced prefixes

• 77.234.128.0/19
• 212.72.96.0/19
• 2a02:d68::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3491 PCCW Global (HK) Ltd.
• AS44306 OMONIA d.o.o.
• AS5511 Orange S.A.
• AS57463 NetIX Communications JSC

Downstream networks

• AS5435 Velcom d.o.o
• AS44549 MEGA M, d.o.o.
• AS201985 RETIP Informacijske Storitve d.o.o.
• AS197441 RETIP Informacijske Storitve d.o.o.
• AS208243 HSI doo
• AS215221 OUR SPACE APPLIANCES d.o.o.
• AS29273 LEXPERA d.o.o.
• AS197579 BASS d.o.o., Celje
• AS197944 Virtua IT d.o.o.
• AS198245 Monolit d.o.o.
• AS198524 iLOL d.o.o.

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS5435 Velcom d.o.o
• AS44306 OMONIA d.o.o.
• AS174 Cogent Communications, LLC
• AS44549 MEGA M, d.o.o.
• AS35471 D1, informacijske tehnologije, d.o.o.
• AS197441 RETIP Informacijske Storitve d.o.o.
• AS6939 Hurricane Electric LLC
• AS5511 Orange S.A.
• AS201985 RETIP Informacijske Storitve d.o.o.
• AS3491 PCCW Global (HK) Ltd.
• AS208243 HSI doo
• AS215221 OUR SPACE APPLIANCES d.o.o.
• AS29273 LEXPERA d.o.o.
• AS197579 BASS d.o.o., Celje
• AS197944 Virtua IT d.o.o.
• AS198245 Monolit d.o.o.
• AS43061 Stelkom d.o.o.
• AS57463 NetIX Communications JSC
• AS198524 iLOL d.o.o.

Internet exchanges

• Slovenian Internet Exchange — Ljubljana, Slovenia