This report was generated at Mon Sep 8 18:21:25 2008 AEST.

Report Sections:

Status Summary

Summary of total route table size for the past 7 days, a listing of possibly bogus routes seen and summary information on ASes.

Aggregation Summary

This lists the "Top 30" ASes who if they aggregated their announced prefixes could make a significant contribution to the reduction of the current size of the Internet routing table.

Last Week's Changes

A summary of the last week's changes in terms of withdrawn and added routes and added ASes.

More Specifics

A list of ASes advertising routes that are more specfic than the original registry allocation size.

Possible Bogons

A list of advertisements of address blocks and Autonomous System numbers where there is no matching allocation data.

Status Summary

Table History

Date Prefixes   CIDR Aggregated 01-09-08   279520   171918 02-09-08   279541   172356 03-09-08   279757   172890 04-09-08   279781   171815 05-09-08   279838   172577 06-09-08   280450   167662 07-09-08   280494   171189 08-09-08   280576   5118

Plot: BGP Table Size

AS Summary

3777   Number of ASes in routing system 1929   Number of ASes announcing only one prefix 1023   Largest number of prefixes announced by an AS   AS6478: ATT-INTERNET3 - AT&T WorldNet Services 67264768   Largest address span announced by an AS (/32s)   AS3356: LEVEL3 Level 3 Communications

Plot: AS count
Plot: Average announcements per origin AS
Report: ASes ordered by originating address span
Report: ASes ordered by transit address span
Report: Autonomous System number-to-name mapping (from Registry WHOIS data)

Aggregation Summary

--- 08Sep08 ---
ASnum	NetsNow	NetsAggr	NetGain	% Gain	Description
Table	20399	11586	8813	43.2%	All ASes
AS4755	546	8	538	98.5%	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
AS6478	1023	497	526	51.4%	ATT-INTERNET3 - AT&T WorldNet Services
AS4538	546	106	440	80.6%	ERX-CERNET-BKB China Education and Research Network Center
AS11492	517	191	326	63.1%	CABLEONE - CABLE ONE
AS17488	372	62	310	83.3%	HATHWAY-NET-AP Hathway IP Over Cable Internet
AS24863	278	131	147	52.9%	LINKdotNET-AS
AS9498	147	4	143	97.3%	BBIL-AP BHARTI Airtel Ltd.
AS9829	362	232	130	35.9%	BSNL-NIB National Internet Backbone
AS9155	130	27	103	79.2%	QualityNet AS number
AS4804	109	7	102	93.6%	MPX-AS Microplex PTY LTD
AS8452	201	99	102	50.7%	TEDATA TEDATA
AS20115	454	352	102	22.5%	CHARTER-NET-HKY-NC - Charter Communications
AS20858	210	108	102	48.6%	EGYNET-AS
AS17816	105	5	100	95.2%	CHINA169-GZ CNCGROUP IP network China169 Guangzhou MAN
AS2386	684	585	99	14.5%	INS-AS - AT&T Data Communications Services
AS4134	191	94	97	50.8%	CHINANET-BACKBONE No.31,Jin-rong Street
AS18049	101	8	93	92.1%	TINP-TW Taiwan Infrastructure Network Technologie
AS22773	99	7	92	92.9%	CCINET-2 - Cox Communications Inc.
AS17676	100	16	84	84.0%	GIGAINFRA BB TECHNOLOGY Corp.
AS4812	93	14	79	84.9%	CHINANET-SH-AP China Telecom (Group)
AS6298	129	53	76	58.9%	COX-PHX - Cox Communications Inc.
AS4808	83	8	75	90.4%	CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
AS9443	74	1	73	98.6%	INTERNETPRIMUS-AS-AP Primus Telecommunications
AS4780	84	13	71	84.5%	SEEDNET Digital United Inc.
AS11351	113	43	70	61.9%	RR-NYSREGION-ASN-01 - Road Runner HoldCo LLC
AS33776	115	50	65	56.5%	STARCOMMS-ASN
AS11992	64	1	63	98.4%	CENTENNIAL-PR - Centennial de Puerto Rico
AS17623	63	1	62	98.4%	CNCGROUP-SZ CNCGROUP IP network of ShenZhen region MAN network
AS7545	183	124	59	32.2%	TPG-INTERNET-AP TPG Internet Pty Ltd
AS9394	64	5	59	92.2%	CRNET CHINA RAILWAY Internet(CRNET)
Total	7240	2852	4388	60.6%	Top 30 total

Report: Aggregation Top 20 summaries for last 7 days
Report: Full Aggregation Details

Top 20 Route Count per Originating AS
Prefixes	ASnum	AS Description
1023	AS6478	ATT-INTERNET3 - AT&T WorldNet Services
684	AS2386	INS-AS - AT&T Data Communications Services
546	AS4538	ERX-CERNET-BKB China Education and Research Network Center
546	AS4755	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
517	AS11492	CABLEONE - CABLE ONE
454	AS20115	CHARTER-NET-HKY-NC - Charter Communications
372	AS17488	HATHWAY-NET-AP Hathway IP Over Cable Internet
362	AS9829	BSNL-NIB National Internet Backbone
278	AS24863	LINKdotNET-AS
210	AS20858	EGYNET-AS
201	AS8452	TEDATA TEDATA
191	AS4134	CHINANET-BACKBONE No.31,Jin-rong Street
183	AS7545	TPG-INTERNET-AP TPG Internet Pty Ltd
174	AS4249	LILLY-AS - Eli Lilly and Company
147	AS9498	BBIL-AP BHARTI Airtel Ltd.
134	AS25994	NPG-001 - NPG Cable, INC
130	AS9155	QualityNet AS number
129	AS6298	COX-PHX - Cox Communications Inc.
123	AS2686	AT&T Global Network Services - EMEA
117	AS7018	ATT-INTERNET4 - AT&T WorldNet Services

Last Week's Changes

 

 

ASes Added to the Routing Table
Prefixes	ASnum	AS Description
5	AS45361	JCN-AS-KR Ulsan Jung-Ang Broadcasting Network
4	AS36997	INFOCOM-UG
1	AS346	DNIC - DoD Network Information Center
1	AS13971	FDS-AS-NY - Fund Development Services, LLC
1	AS21670	AUDIBLE - Audible, Inc.
1	AS37030	TIGO-AS
1	AS37043	PNL-AS
1	AS40918	DIODE-DILLER - Diode Cable Company
1	AS40939	WAL-AS-01 - Bank of Nevada
1	AS46227	SILVERCREEKCAPITAL-SEA - Silver Creek Capital Management, LLC.

 

Top 20 Net Increased Routes per Originating AS
Prefixes	Change	ASnum	AS Description
15	1->16	AS3	MIT-GATEWAYS - Massachusetts Institute of Technology
5	0->5	AS45361	JCN-AS-KR Ulsan Jung-Ang Broadcasting Network
4	0->4	AS36997	INFOCOM-UG
4	26->30	AS37019	IAL
4	3->7	AS44863	IVDELTA-AS Delta Telecom Ltd.
3	11->14	AS46284	ADVANCEDCOMPUTERIPSOL - Advanced Computer and IP Solutions, LLC
2	9->11	AS36994	Vodacom-VB
1	0->1	AS346	DNIC - DoD Network Information Center
1	4->5	AS11957	CACHEFLOW-AS - Bluecoat Systems, Inc.
1	0->1	AS13971	FDS-AS-NY - Fund Development Services, LLC
1	15->16	AS15426	XENOSITE XenoSite Autonomous System
1	0->1	AS21670	AUDIBLE - Audible, Inc.
1	16->17	AS23292	MILLENIUM-DIGITAL - Broadstripe
1	18->19	AS29091	IPNXng
1	1->2	AS30995	CIBEG-AS
1	0->1	AS37030	TIGO-AS
1	0->1	AS37043	PNL-AS
1	1->2	AS37048	Foris-MW
1	0->1	AS40918	DIODE-DILLER - Diode Cable Company
1	0->1	AS40939	WAL-AS-01 - Bank of Nevada

 

Top 20 Net Decreased Routes per Originating AS
Prefixes	Change	ASnum	AS Description
-4471	5017->546	AS4538	ERX-CERNET-BKB China Education and Research Network Center
-4288	4302->14	AS6389	BELLSOUTH-NET-BLK - BellSouth.net Inc.
-2854	2879->25	AS209	ASN-QWEST - Qwest
-1884	2013->129	AS6298	COX-PHX - Cox Communications Inc.
-1649	1650->1	AS1785	AS-PAETEC-NET - PaeTec Communications, Inc.
-1590	1590->0	AS8151	Uninet S.A. de C.V.
-1478	1497->19	AS4323	TWTC - tw telecom holdings, inc.
-1314	1431->117	AS7018	ATT-INTERNET4 - AT&T WorldNet Services
-1277	1277->0	AS1803	ICMNET-5 - Sprint
-1173	1719->546	AS4755	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
-1115	1115->0	AS9583	SIFY-AS-IN Sify Limited
-1046	1046->0	AS18566	COVAD - Covad Communications Co.
-1024	1478->454	AS20115	CHARTER-NET-HKY-NC - Charter Communications
-994	1366->372	AS17488	HATHWAY-NET-AP Hathway IP Over Cable Internet
-979	979->0	AS23577	ATM-MPLS-AS-KR Korea Telecom
-944	944->0	AS19262	VZGNI-TRANSIT - Verizon Internet Services Inc.
-939	972->33	AS3356	LEVEL3 Level 3 Communications
-918	985->67	AS174	COGENT Cogent/PSI
-903	903->0	AS7011	FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc.
-877	1561->684	AS2386	INS-AS - AT&T Data Communications Services

 

Top 20 Added Routes this week per Originating AS
Prefixes	ASnum	AS Description
16	AS20115	CHARTER-NET-HKY-NC - Charter Communications
14	AS24863	LINKdotNET-AS
11	AS9829	BSNL-NIB National Internet Backbone
10	AS6478	ATT-INTERNET3 - AT&T WorldNet Services
6	AS23292	MILLENIUM-DIGITAL - Broadstripe
6	AS37019	IAL
5	AS45361	JCN-AS-KR Ulsan Jung-Ang Broadcasting Network
4	AS209	ASN-QWEST - Qwest
4	AS36997	INFOCOM-UG
4	AS44863	IVDELTA-AS Delta Telecom Ltd.
4	AS4538	ERX-CERNET-BKB China Education and Research Network Center
3	AS17974	TELKOMNET-AS2-AP PT Telekomunikasi Indonesia
3	AS15808	Communication Solutions Ltd is an ISP serving
3	AS15133	EDGECAST - EdgeCast Networks, Inc.
3	AS9697	CJHAEUNDAEGIJANG-AS-KR CJ CableNet HaeundaeKijang Corp.
3	AS31810	AOTL-AS
3	AS46284	ADVANCEDCOMPUTERIPSOL - Advanced Computer and IP Solutions, LLC
2	AS6221	USCYBERSITES - US Cybersites, Inc
2	AS4847	CNIX-AP China Networks Inter-Exchange
2	AS9155	QualityNet AS number

Top 20 Withdrawn Routes this week per Originating AS
Prefixes	ASnum	AS Description
-4475	AS4538	ERX-CERNET-BKB China Education and Research Network Center
-4288	AS6389	BELLSOUTH-NET-BLK - BellSouth.net Inc.
-2858	AS209	ASN-QWEST - Qwest
-1884	AS6298	COX-PHX - Cox Communications Inc.
-1649	AS1785	AS-PAETEC-NET - PaeTec Communications, Inc.
-1590	AS8151	Uninet S.A. de C.V.
-1478	AS4323	TWTC - tw telecom holdings, inc.
-1314	AS7018	ATT-INTERNET4 - AT&T WorldNet Services
-1277	AS1803	ICMNET-5 - Sprint
-1174	AS4755	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
-1115	AS9583	SIFY-AS-IN Sify Limited
-1046	AS18566	COVAD - Covad Communications Co.
-1040	AS20115	CHARTER-NET-HKY-NC - Charter Communications
-994	AS17488	HATHWAY-NET-AP Hathway IP Over Cable Internet
-979	AS23577	ATM-MPLS-AS-KR Korea Telecom
-944	AS19262	VZGNI-TRANSIT - Verizon Internet Services Inc.
-939	AS3356	LEVEL3 Level 3 Communications
-918	AS174	COGENT Cogent/PSI
-903	AS7011	FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc.
-878	AS2386	INS-AS - AT&T Data Communications Services

Adds and Wdls per Prefix Length
	/8	+0	-2
	/9	+0	-1
	/10	+0	-15
	/11	+0	-44
	/12	+0	-127
	/13	+0	-261
	/14	+0	-482
	/15	+0	-963
	/16	+2	-9372
	/17	+2	-4003
	/18	+4	-6923
	/19	+10	-14972
	/20	+19	-17987
	/21	+7	-17738
	/22	+18	-22042
	/23	+18	-22885
	/24	+93	-134703
	/25	+0	-1077
	/26	+0	-1306
	/27	+2	-991
	/28	+0	-1166
	/29	+0	-1029
	/30	+0	-758
	/31	+0	-2
	/32	+0	-467

Report: Announced and Withdrawn prefix list
Report: Announced and Withdrawn prefix list - ordered by prefix length
Report: Announced Route count per Originating AS
Report: Withdrawn Route count per Originating AS

More Specifics

Top 20 ASes advertising more specific prefixes
More Specifics	Total   Prefixes	ASnum	AS Description
1023	1023	AS6478	ATT-INTERNET3 - AT&T WorldNet Services
684	684	AS2386	INS-AS - AT&T Data Communications Services
541	546	AS4755	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
538	546	AS4538	ERX-CERNET-BKB China Education and Research Network Center
513	517	AS11492	CABLEONE - CABLE ONE
447	454	AS20115	CHARTER-NET-HKY-NC - Charter Communications
372	372	AS17488	HATHWAY-NET-AP Hathway IP Over Cable Internet
362	362	AS9829	BSNL-NIB National Internet Backbone
180	183	AS7545	TPG-INTERNET-AP TPG Internet Pty Ltd
174	174	AS4249	LILLY-AS - Eli Lilly and Company
143	147	AS9498	BBIL-AP BHARTI Airtel Ltd.
133	134	AS25994	NPG-001 - NPG Cable, INC
129	130	AS9155	QualityNet AS number
129	129	AS6298	COX-PHX - Cox Communications Inc.
126	191	AS4134	CHINANET-BACKBONE No.31,Jin-rong Street
121	123	AS2686	AT&T Global Network Services - EMEA
110	117	AS7018	ATT-INTERNET4 - AT&T WorldNet Services
105	105	AS17816	CHINA169-GZ CNCGROUP IP network China169 Guangzhou MAN
102	109	AS4804	MPX-AS Microplex PTY LTD
101	113	AS11351	RR-NYSREGION-ASN-01 - Road Runner HoldCo LLC

Report: ASes ordered by number of more specific prefixes
Report: More Specific prefix list (by AS)
Report: More Specific prefix list (ordered by prefix)

Possible Bogus Routes and AS Announcements 

Possible Bogus Routes

Prefix	Origin AS	AS Description	Unallocated block
199.9.128.0/17	AS668	ASN-ASNET-NET-AS - Defense Research and Engineering Network	199.9.248.0 - 199.9.255.255
216.99.20.0/24	AS6395	LVLT-6395 - Level 3 Communications, Inc.	216.99.16.0 - 216.99.23.255
216.240.240.0/24	AS7018	ATT-INTERNET4 - AT&T WorldNet Services	216.240.240.0 - 216.240.255.255
216.240.241.0/24	AS7018	ATT-INTERNET4 - AT&T WorldNet Services	216.240.240.0 - 216.240.255.255
216.240.242.0/24	AS7018	ATT-INTERNET4 - AT&T WorldNet Services	216.240.240.0 - 216.240.255.255

Report: Allocated and Reserved IPv4 address blocks

No Bogus ASs

Report: Allocated and Reserved AS blocks

A version of this report is available using plain text tables.

Report produced at: Mon Sep 8 18:21:25 2008 AEST (cidr-report.c v1.4 - gih)