This page describes the old CIDR Report. The old CIDR Report is no longer
supported. For the current CIDR Report statistics, please go to
http://www.cidr-report.org.
You can now see the list of autonomous system
number to name mappings as used by the CIDR-Report.
You can now see the CIDR Report
for the "Top 30" players in each of the three Regional Registry areas.
You can search for things associated with an AS based on the daily report.
List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes.
This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible.
A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amount of withdrawls.
Interesting here means not an aggregate made as a set of classful routes.
Thanks to GX Networks for giving me access to their routing tables once a day.
Please send any comments about this report directly to cidr-report@cisco.com.
Date Prefixes 110803 123352 120803 123259 130803 123273 140803 122815 150803 120511 170803 122736 190803 123051 200803 123067Click here for a plot of the table history
Number of ASes in routing system: 8690 Number of ASes announcing only one prefix: 3988 (0 cidr, 3988 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 879 announced by AS1221 Click here for a plot of AS history
--- 11Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 10Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 09Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 08Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 07Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 06Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 05Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1% --- 04Nov03 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 879 677 202 23.0% Asia Pacific Network Information AS11305 232 56 176 75.9% Interland Incorporated AS701 819 650 169 20.6% UUNET Technologies, Inc. AS17557 297 136 161 54.2% UNREGISTERED AS16814 151 27 124 82.1% Latin American and Caribbean IP a AS9498 131 23 108 82.4% UNREGISTERED AS9238 128 24 104 81.2% UNREGISTERED AS7018 734 634 100 13.6% AT&T WorldNet Services AS10620 127 28 99 78.0% Latin American and Caribbean IP a AS19632 99 5 94 94.9% Latin American and Caribbean IP a AS12302 123 30 93 75.6% UNREGISTERED AS724 225 149 76 33.8% DoD Network Information Center AS376 155 86 69 44.5% Reseau Interordinateurs Scientiqu AS1239 480 411 69 14.4% Sprint AS9583 185 117 68 36.8% UNREGISTERED AS852 338 270 68 20.1% Telus Advanced Communications AS705 241 173 68 28.2% UUNET Technologies, Inc. AS2048 175 107 68 38.9% State of Louisiana AS11139 100 33 67 67.0% Cable & Wireless Dominica AS7080 64 1 63 98.4% Latin American and Caribbean IP a AS20412 68 5 63 92.6% Black Hills FiberCom AS17488 75 13 62 82.7% UNREGISTERED AS5416 70 10 60 85.7% UNREGISTERED AS19834 64 4 60 93.8% NetForce, Inc. AS4323 344 285 59 17.2% Time Warner Communications, Inc. AS209 259 201 58 22.4% Qwest AS6535 75 18 57 76.0% Latin American and Caribbean IP a AS9051 88 35 53 60.2% UNREGISTERED AS16758 62 10 52 83.9% IKON Office Solutions AS7303 91 40 51 56.0% Latin American and Caribbean IP a Total 55207 41923 13284 24.1%
This a daily snapshot of changes in classful routes being withdrawn and added. the deltas are calculated over a rolling 7 day period. Please bear in mind this is purely a "snapshot" and a large flucuation could be caused by a connectivity problem for example. However, this does give some indication of service providers that are moving to classless routing. Top 20 Withdrawn Classful Routes from 04Nov03 to 11Nov03 Top 20 Added Classful Routes from 04Nov03 to 11Nov03 This a daily snapshot of changes in classless routes being withdrawn and added. Top 20 Withdrawn Classless Routes from 04Nov03 to 11Nov03 Top 20 Added Classless Routes from 04Nov03 to 11Nov03
List of possibly interesting aggregates
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Aggregate | Origin | AS Description | Netname
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