[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Mar 5 04:10:21 EAT 2005


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net

If you have any comments please contact Philip Smith <pfs at cisco.com>.

Routing Table Report   04:00 +10GMT Sat 05 Mar, 2005

Analysis Summary
----------------

BGP routing table entries examined:                              156980
    Prefixes after maximum aggregation:                           91812
    Unique aggregates announced to Internet:                      75951
Total ASes present in the Internet Routing Table:                 19079
Origin-only ASes present in the Internet Routing Table:           16598
Origin ASes announcing only one prefix:                            7747
Transit ASes present in the Internet Routing Table:                2481
Transit-only ASes present in the Internet Routing Table:             80
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      19
Prefixes from unregistered ASNs in the Routing Table:                15
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1381365024
    Equivalent to 82 /8s, 85 /16s and 245 /24s
    Percentage of available address space announced:               37.3
    Percentage of allocated address space announced:               58.9
    Percentage of available address space allocated:               63.2
Total number of prefixes smaller than registry allocations:       73122

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                    31360
    Total APNIC prefixes after maximum aggregation:               15191
Prefixes being announced from the APNIC address blocks:           29402
    Unique aggregates announced from the APNIC address blocks:    15308
APNIC Region origin ASes present in the Internet Routing Table:    2215
APNIC Region origin ASes announcing only one prefix:                651
APNIC Region transit ASes present in the Internet Routing Table:    329
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              176401600
    Equivalent to 10 /8s, 131 /16s and 172 /24s
    Percentage of available APNIC address space announced:         65.5

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
                       23552-24575
APNIC Address Blocks   58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
                       220/7 and 222/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     87515
    Total ARIN prefixes after maximum aggregation:                52984
Prefixes being announced from the ARIN address blocks:            66773
    Unique aggregates announced from the ARIN address blocks:     24478
ARIN Region origin ASes present in the Internet Routing Table:     9907
ARIN Region origin ASes announcing only one prefix:                3583
ARIN Region transit ASes present in the Internet Routing Table:     947
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               240188416
    Equivalent to 14 /8s, 80 /16s and 252 /24s
    Percentage of available ARIN address space announced:          71.6

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
                       2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     29849
    Total RIPE prefixes after maximum aggregation:                20530
Prefixes being announced from the RIPE address blocks:            26772
    Unique aggregates announced from the RIPE address blocks:     17751
RIPE Region origin ASes present in the Internet Routing Table:     6363
RIPE Region origin ASes announcing only one prefix:                3361
RIPE Region transit ASes present in the Internet Routing Table:    1073
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               193577808
    Equivalent to 11 /8s, 137 /16s and 195 /24s
    Percentage of available RIPE address space announced:          67.9

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
                       2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-34815
RIPE Address Blocks    62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
                       and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    6876
    Total LACNIC prefixes after maximum aggregation:               2402
Prefixes being announced from the LACNIC address blocks:           6817
    Unique aggregates announced from the LACNIC address blocks:    4024
LACNIC Region origin ASes present in the Internet Routing Table:    423
LACNIC Region origin ASes announcing only one prefix:               128
LACNIC Region transit ASes present in the Internet Routing Table:    81
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              17675264
    Equivalent to 1 /8s, 13 /16s and 180 /24s
    Percentage of available LACNIC address space announced:        52.7

LACNIC AS Blocks       26592-26623, 27648-28671
LACNIC Address Blocks  200/7

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1365
    Total AfriNIC prefixes after maximum aggregation:               705
Prefixes being announced from the AfriNIC address blocks:           895
    Unique aggregates announced from the AfriNIC address blocks:    714
AfriNIC Region origin ASes present in the Internet Routing Table:    96
AfriNIC Region origin ASes announcing only one prefix:               24
AfriNIC Region transit ASes present in the Internet Routing Table:   14
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2176768
    Equivalent to 0 /8s, 33 /16s and 55 /24s
    Percentage of available AfriNIC address space announced:       13.0

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      887       4720         175   Data Communications Bureau
 1221      792       1189         564   Telstra Pty Ltd
 9583      608         49          21   Satyam Infoway Ltd.,
 4766      589       3416         279   Korea Internet Exchange for "
 4755      480        241         101   Videsh Sanchar Nigam Ltd. Aut
 7545      465         75         159   TPG Internet Pty Ltd
17676      404       6092          70   XTAGE CORPORATION
 9443      374         77          79   Primus Telecommunications
 9929      359        167          39   China Netcom Corp.
 2907      348       1839         322   SINET Japan
17557      330         25         152   Pakistan Telecom
10036      299         27         272   C&M Communication Co. Ltd.
 7474      286        283         208   Optus Communications Pty Ltd
  703      272        355         214   UUNET
 2764      255        237         204   connect.com.au pty ltd
 4802      250         45         157   Wantree Development
 9498      246         81          54   BHARTI BT INTERNET LTD.
 9800      240        395          71   CHINA UNICOM
 4808      239        234         130   CHINANET core WAN North
17974      232         63          12   PT TELEKOMUNIKASI INDONESIA

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1470       6592         968   AT&T WorldNet Services
  721     1125      21755         313   DLA Systems Automation Center
 4323     1052        668         219   Time Warner Telecom
  701     1031       8290         875   UUNET Technologies, Inc. 
 1239      926       2872         659   Sprint 
 6197      872        380         408   BellSouth Network Solutions, 
 2386      820        498         609   AT&T Data Communications Serv
18566      773        208           6   Covad Communications 
  174      766       5529         669   PSINet Inc. 
  209      638       3466         501   Qwest 
 3356      583      10864         433   Level 3 Communications, LLC 
20115      579        478         300   Charter Communications 
 3561      561       2374         416   Cable & Wireless USA 
  852      534       1111         403   Telus Advanced Communications
 3602      501        120          93   Sprint Canada, Inc. 
 6478      499        831         101   AT&T Worldnet Services 
22773      478       1090          24   Cox Communications, Inc. Atla
 6198      467        540         196   BellSouth Network Solutions, 
27364      465         43          18   Armstrong Cable Services 
 5668      456         93          22   Century Telephone 

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      607       2006         498   UUNET - Commercial IP service
 3320      295       2992         229   Deutsche Telekom AG
 3301      291       1112         279   TeliaNet Sweden
 8220      275        466         269   COLT Internet - International
  680      254       2041         239   DFN-IP service G-WiN
 3246      226        472         221   Song Networks
 8708      224        123         201   Romania Data Systems S.A.
13083      218         51           8   Mannesmann Datenverarbeitung 
 1257      208        708         173   SWIPnet Swedish IP Network
 3215      206       1058          80   France Telecom Transpac
 5515      187        842         135   Sonera Solution Autonomous Sy
  786      176       1794         176   The JANET IP Service
 8866      176         20          16   Bulgarian Telecommunication C
 3269      165       1456          72   TELECOM ITALIA
 3300      164        185          84   AUCS Communications Services 
 9121      164        230          31   TTnet Autonomous System
 6746      163         47         144   Dynamic Network Technologies,
  719      158        322         100   LANLINK autonomous system
 6830      142        529          28   UPC Distribution Services
25186      140        138         100   France Telecom Transpac's Tra

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      350        140          67   ImpSat
 8151      337        505         142   UniNet S.A. de C.V. 
16814      233         14           6   NSS, S.A. 
11172      220         99          54   Servicios Alestra S.A de C.V 
 6147      205        102          20   Telefonica Del Peru 
11664      151         19          24   Keytech SA 
 7303      146         66          30   Telecom Argentina Stet-France
 6505      135         90          91   Global One Communicaoes Ltda 
14117      119          7           5   Telefonica del Sur S.A. 
 6503      114        145          75   AVANTEL, S.A. 
11992      107          9          31   Integrated Systems 
11556       97         48           3   Cable-Wireless Panama 
13999       92         52           9   Mega Cable S.A. de C.V. 
11311       88          8          23   Sinectis S.A. 
 6535       87          7          23   Chilesat Servicios  Empresari
14420       87          6          42   ANDINATEL S.A. 
 5639       83         12           9   Telecommunications Services o
10292       79          6          18   TELECOMMUNICATIONS OF JAMAICA
10481       79         32           7   Prima S.A. 
15311       77         24          36   Telefonica Empresas 

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      268        635         225   The Internet Solution 
 5536      114         15          18   Internet Egypt Network
 2018       90        295          87   Tertiary Education Network 
20928       87         16           2   Noor Advanced Technologies AS
 2905       84        267          76   The Internetworking Company o
 8452       55         20           5   TEDATA
24835       53         34           6   RAYA Telecom - Egypt
 9129       37          3           2   UUNET Kenya
 6713       35         54           9   Itissalat Al-MAGHRIB
12455       30          7           4   Jambonet Autonomous system
 5713       27        141          24   Telkom SA Ltd 
 8524       24          1           4   AUCEGYPT Autonomous System
16637       22         10          19   Johnnic e-Ventures 
10798       19          1          11   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
21280       18          2           3   Swift Global Kenya Ltd.Is an 
 8346       17         10          11   SONATEL-AS Autonomous System
15475       16         84           4   Nile Online
21491       16          1           3   UTL On-line is RF broadband I
15706       15          4           2   Sudatel Internet Exchange Aut

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 4323      1052         833      Time Warner Telecom
  721      1125         812      DLA Systems Automation Center
18566       773         767      Covad Communications 
 4134       887         712      Data Communications Bureau
 9583       608         587      Satyam Infoway Ltd.,
 6197       872         464      BellSouth Network Solutions, 
22773       478         454      Cox Communications, Inc. Atla
27364       465         447      Armstrong Cable Services 
 5668       456         434      Century Telephone 
 3602       501         408      Sprint Canada, Inc. 
 6478       499         398      AT&T Worldnet Services 
 4755       480         379      Videsh Sanchar Nigam Ltd. Aut
17676       404         334      XTAGE CORPORATION
 6467       360         327      E.Spire Communications, Inc. 
 9929       359         320      China Netcom Corp.
 4766       589         310      Korea Internet Exchange for "
 7545       465         306      TPG Internet Pty Ltd
 9443       374         295      Primus Telecommunications
 6140       350         283      ImpSat
20115       579         279      Charter Communications 

List of Unregistered ASNs (Global)
----------------------------------

Bad AS  Designation  Network              Transit AS  Description
25695   UNALLOCATED   64.57.112.0/20        5713       Telkom SA Ltd 
64826   PRIVATE       64.200.250.0/23       7911       Williams Communicati
40439   UNALLOCATED   66.194.101.0/24      30439       Memphis Daily News 
65503   PRIVATE       193.125.183.0/24      3217       SIMBIRSK
65004   PRIVATE       200.0.113.0/24       28477       Universidad Autonoma
65004   PRIVATE       200.4.0.0/24         28477       Universidad Autonoma
65004   PRIVATE       200.4.1.0/24         28477       Universidad Autonoma
65004   PRIVATE       200.4.2.0/24         28477       Universidad Autonoma
65004   PRIVATE       200.4.3.0/24         28477       Universidad Autonoma
65004   PRIVATE       200.4.4.0/24         28477       Universidad Autonoma
65004   PRIVATE       200.4.5.0/24         28477       Universidad Autonoma
65004   PRIVATE       200.4.6.0/24         28477       Universidad Autonoma
65535   PRIVATE       204.10.155.0/24      33205       KMC Telecom Solution
65529   PRIVATE       216.21.199.0/24      14697       VDot.Net 
65529   PRIVATE       216.152.237.0/24     14697       VDot.Net 

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
192.43.230.0/24       7575     Australian Academic and Rease
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T WorldNet Services
192.172.0.0/19         721     DLA Systems Automation Center
192.200.100.0/24      7018     AT&T WorldNet Services

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:3       /10:8       /11:14      /12:62      
/13:148     /14:306     /15:570     /16:8298    /17:2433    /18:4160    
/19:10091   /20:10755   /21:8633    /22:11925   /23:13095   /24:85642   
/25:267     /26:247     /27:106     /28:51      /29:26      /30:83      
/31:0       /32:38      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
18566      758           773      Covad Communications 
 6197      715           872      BellSouth Network Solutions, 
 7018      636          1470      AT&T WorldNet Services
 2386      584           820      AT&T Data Communications Serv
 4323      484          1052      Time Warner Telecom
27364      450           465      Armstrong Cable Services 
 9583      432           608      Satyam Infoway Ltd.,
 4766      405           589      Korea Internet Exchange for "
 5668      383           456      Century Telephone 
 1239      373           926      Sprint 
  702      369           607      UUNET - Commercial IP service
 6198      336           467      BellSouth Network Solutions, 
10036      299           299      C&M Communication Co. Ltd.
 6517      288           310      Yipes Communications, Inc. 
 9929      285           359      China Netcom Corp.
 6467      271           360      E.Spire Communications, Inc. 
11456      263           310      Carolina Online, Inc. 
13609      257           306      Choice One Communications Inc
  701      248          1031      UUNET Technologies, Inc. 
25844      245           245      Skadden, Arps, Slate, Meagher

Number of /24s announced per /8 block (Global)
----------------------------------------------

   4:4         8:10       12:1487     13:1        15:9        16:2      
  17:3        18:4        20:5        24:737      32:64       33:4      
  38:98       40:55       44:3        47:2        52:3        55:2      
  56:3        57:24       58:1        59:5        60:21       61:709    
  62:518      63:1865     64:2576     65:2059     66:2710     67:522    
  68:504      69:899      70:68       71:11       72:83       80:544    
  81:526      82:331      83:261      84:136      85:152     128:140    
 129:162     130:94      131:279     132:35      133:1       134:142    
 135:30      136:189     137:66      138:156     139:53      140:197    
 141:102     142:139     143:127     144:175     145:45      146:278    
 147:101     148:279     149:163     150:96      151:63      152:110    
 153:85      154:3       155:142     156:68      157:83      158:155    
 159:168     160:71      161:60      162:428     163:85      164:209    
 165:164     166:130     167:226     168:401     169:133     170:307    
 171:9       192:5661    193:3114    194:2285    195:1589    196:625    
 198:3892    199:3309    200:3994    201:53      202:5199    203:6046   
 204:3712    205:2020    206:2345    207:2722    208:2072    209:3156   
 210:1609    211:800     212:1165    213:1256    214:243     215:31     
 216:3651    217:1093    218:189     219:108     220:369     221:92     
 222:72     

End of report


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