[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 20 18:11:52 UTC 2015


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG,
CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 21 Mar, 2015

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

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

BGP routing table entries examined:                              537248
    Prefixes after maximum aggregation (per Origin AS):          205386
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      262112
Total ASes present in the Internet Routing Table:                 49750
    Prefixes per ASN:                                             10.80
Origin-only ASes present in the Internet Routing Table:           36563
Origin ASes announcing only one prefix:                           16283
Transit ASes present in the Internet Routing Table:                6263
Transit-only ASes present in the Internet Routing Table:            168
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      59
    Max AS path prepend of ASN ( 55644)                              56
Prefixes from unregistered ASNs in the Routing Table:              1246
    Unregistered ASNs in the Routing Table:                         420
Number of 32-bit ASNs allocated by the RIRs:                       8933
Number of 32-bit ASNs visible in the Routing Table:                6924
Prefixes from 32-bit ASNs in the Routing Table:                   25162
Number of bogon 32-bit ASNs visible in the Routing Table:             2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            386
Number of addresses announced to Internet:                   2735724964
    Equivalent to 163 /8s, 15 /16s and 217 /24s
    Percentage of available address space announced:               73.9
    Percentage of allocated address space announced:               73.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.2
Total number of prefixes smaller than registry allocations:      181358

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

Prefixes being announced by APNIC Region ASes:                   132643
    Total APNIC prefixes after maximum aggregation:               38539
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          138315
    Unique aggregates announced from the APNIC address blocks:    56317
APNIC Region origin ASes present in the Internet Routing Table:    5029
    APNIC Prefixes per ASN:                                       27.50
APNIC Region origin ASes announcing only one prefix:               1206
APNIC Region transit ASes present in the Internet Routing Table:    874
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         59
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1356
Number of APNIC addresses announced to Internet:              746249984
    Equivalent to 44 /8s, 122 /16s and 223 /24s
    Percentage of available APNIC address space announced:         87.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    177154
    Total ARIN prefixes after maximum aggregation:                87591
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           179130
    Unique aggregates announced from the ARIN address blocks:     84060
ARIN Region origin ASes present in the Internet Routing Table:    16522
    ARIN Prefixes per ASN:                                        10.84
ARIN Region origin ASes announcing only one prefix:                6075
ARIN Region transit ASes present in the Internet Routing Table:    1704
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:     377
Number of ARIN addresses announced to Internet:              1062603040
    Equivalent to 63 /8s, 86 /16s and 9 /24s
    Percentage of available ARIN address space announced:          56.2

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  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
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 393216-394239
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

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

Prefixes being announced by RIPE Region ASes:                    130585
    Total RIPE prefixes after maximum aggregation:                65064
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           136953
    Unique aggregates announced from the RIPE address blocks:     84165
RIPE Region origin ASes present in the Internet Routing Table:    17924
    RIPE Prefixes per ASN:                                         7.64
RIPE Region origin ASes announcing only one prefix:                8174
RIPE Region transit ASes present in the Internet Routing Table:    2957
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3523
Number of RIPE addresses announced to Internet:               694199940
    Equivalent to 41 /8s, 96 /16s and 166 /24s
    Percentage of available RIPE address space announced:         100.9

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-202239
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   58812
    Total LACNIC prefixes after maximum aggregation:              11136
    LACNIC Deaggregation factor:                                   5.28
Prefixes being announced from the LACNIC address blocks:          68652
    Unique aggregates announced from the LACNIC address blocks:   32063
LACNIC Region origin ASes present in the Internet Routing Table:   2414
    LACNIC Prefixes per ASN:                                      28.44
LACNIC Region origin ASes announcing only one prefix:               621
LACNIC Region transit ASes present in the Internet Routing Table:   492
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1567
Number of LACNIC addresses announced to Internet:             168071168
    Equivalent to 10 /8s, 4 /16s and 144 /24s
    Percentage of available LACNIC address space announced:       100.2

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                  12709
    Total AfriNIC prefixes after maximum aggregation:              3012
    AfriNIC Deaggregation factor:                                  4.22
Prefixes being announced from the AfriNIC address blocks:         13812
    Unique aggregates announced from the AfriNIC address blocks:   5157
AfriNIC Region origin ASes present in the Internet Routing Table:   739
    AfriNIC Prefixes per ASN:                                     18.69
AfriNIC Region origin ASes announcing only one prefix:              207
AfriNIC Region transit ASes present in the Internet Routing Table:  159
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  101
Number of AfriNIC addresses announced to Internet:             64104960
    Equivalent to 3 /8s, 210 /16s and 42 /24s
    Percentage of available AfriNIC address space announced:       63.7

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2870      11553         913   Korea Telecom
17974     2797        904          78   PT Telekomunikasi Indonesia
 7545     2541        336         126   TPG Telecom Limited
 4755     1998        422         212   TATA Communications formerly 
 4538     1761       4190          71   China Education and Research 
 9829     1694       1326          39   National Internet Backbone
 9808     1552       8717          28   Guangdong Mobile Communicatio
 4808     1472       2243         438   CNCGROUP IP network China169 
 9583     1398        132         556   Sify Limited
 9498     1309        334          94   BHARTI Airtel Ltd.

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
22773     3024       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2549      10683         477   Level 3 Communications, Inc.
18566     2041        379         183   MegaPath Corporation
20115     1848       1831         428   Charter Communications
 6983     1704        866         245   EarthLink, Inc.
 4323     1618       1021         408   tw telecom holdings, inc.
30036     1529        313         496   Mediacom Communications Corp
  701     1391      11272         679   MCI Communications Services, 
22561     1332        412         242   CenturyTel Internet Holdings,

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
34984     1976        303         361   TELLCOM ILETISIM HIZMETLERI A
20940     1633        634        1215   Akamai International B.V.
 8402     1358        544          15   OJSC "Vimpelcom"
 6849     1213        356          24   JSC "Ukrtelecom"
31148     1046         45          21   Freenet Ltd.
13188     1022         96          72   TOV "Bank-Inform"
 8551      903        373          48   Bezeq International-Ltd
12479      883        799          85   France Telecom Espana SA
 9198      854        349          25   JSC Kazakhtelecom

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     3152        514         196   Telmex Colombia S.A.
28573     2331       2171         122   NET Serviços de Comunicação S
 7303     1781       1178         234   Telecom Argentina S.A.
 6147     1581        374          30   Telefonica del Peru S.A.A.
 8151     1553       3136         452   Uninet S.A. de C.V.
 6503     1207        421          57   Axtel, S.A.B. de C.V.
 7738     1001       1882          42   Telemar Norte Leste S.A.
26615      955       2325          35   Tim Celular S.A.
 3816      918        408         152   COLOMBIA TELECOMUNICACIONES S
18881      866       1036          22   Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8452     1638        958          13   TE-AS
24863      953        284          27   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      406       1101          32   ETISALAT MISR
37492      317        159          70   Orange Tunisie
24835      299        144           9   Vodafone Data
 3741      250        921         209   Internet Solutions
29571      233         21          13   Cote d'Ivoire Telecom
36947      191        807          13   Telecom Algeria
15706      172         32           6   Sudatel (Sudan Telecom Co. Lt

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     3152        514         196   Telmex Colombia S.A.
22773     3024       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 4766     2870      11553         913   Korea Telecom
17974     2797        904          78   PT Telekomunikasi Indonesia
 3356     2549      10683         477   Level 3 Communications, Inc.
 7545     2541        336         126   TPG Telecom Limited
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2331       2171         122   NET Serviços de Comunicação S
18566     2041        379         183   MegaPath Corporation

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

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

  ASN   No of nets  Net Savings Description
22773      3024        2883      Cox Communications Inc.
 6389      2891        2840      BellSouth.net Inc.
17974      2797        2719      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2541        2415      TPG Telecom Limited
28573      2331        2209      NET Serviços de Comunicação S
 3356      2549        2072      Level 3 Communications, Inc.
 4766      2870        1957      Korea Telecom
18566      2041        1858      MegaPath Corporation
 4755      1998        1786      TATA Communications formerly 

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

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

Bad AS  Designation  Network              Transit AS  Description
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.226.112.0/20      62788     Bitfinite LLC
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:12      /10:34      /11:92      /12:264     
/13:506     /14:1000    /15:1720    /16:12965   /17:7188    /18:12207   
/19:25237   /20:35850   /21:38583   /22:58302   /23:50708   /24:289609  
/25:1087    /26:1161    /27:661     /28:14      /29:11      /30:8       
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2237          3024      Cox Communications Inc.
18566     1996          2041      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1375          1529      Mediacom Communications Corp
 6983     1351          1704      EarthLink, Inc.
34984     1281          1976      TELLCOM ILETISIM HIZMETLERI A
 6147     1129          1581      Telefonica del Peru S.A.A.
10620     1110          3152      Telmex Colombia S.A.
11492     1101          1165      CABLE ONE, INC.

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

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

   1:1535      2:676       3:1         4:95        5:1754      6:21     
   8:1435     12:1829     13:4        14:1310     15:17       16:2      
  17:45       18:21       20:48       23:1202     24:1680     27:1856   
  31:1506     32:39       33:2        34:5        35:3        36:120    
  37:1878     38:1012     39:9        40:238      41:2979     42:260    
  43:1224     44:27       45:311      46:2134     47:34       49:843    
  50:794      52:12       54:69       55:7        56:8        57:37     
  58:1214     59:685      60:467      61:1782     62:1316     63:1913   
  64:4446     65:2264     66:4113     67:2043     68:1076     69:3256   
  70:955      71:442      72:1968     74:2602     75:319      76:406    
  77:1492     78:1249     79:806      80:1323     81:1354     82:822    
  83:675      84:688      85:1354     86:386      87:1063     88:514    
  89:1776     90:151      91:5945     92:830      93:2183     94:1949   
  95:2088     96:428      97:343      98:1071     99:45      100:68     
 101:802     103:7021    104:1422    105:63      106:222     107:903    
 108:617     109:1999    110:1083    111:1480    112:763     113:1052   
 114:837     115:1253    116:1351    117:1013    118:1688    119:1442   
 120:443     121:1050    122:2180    123:1728    124:1506    125:1583   
 128:623     129:379     130:380     131:1154    132:487     133:167    
 134:416     135:111     136:305     137:309     138:538     139:164    
 140:237     141:421     142:640     143:483     144:566     145:107    
 146:716     147:588     148:1108    149:447     150:556     151:609    
 152:492     153:239     154:387     155:742     156:407     157:331    
 158:269     159:978     160:374     161:645     162:1938    163:414    
 164:659     165:674     166:285     167:689     168:1270    169:154    
 170:1436    171:240     172:41      173:1532    174:702     175:651    
 176:1432    177:3803    178:2073    179:873     180:1902    181:1644   
 182:1732    183:614     184:736     185:3122    186:2621    187:1803   
 188:1999    189:1591    190:7617    191:952     192:8166    193:5603   
 194:4092    195:3655    196:1718    197:1084    198:5508    199:5514   
 200:6540    201:3023    202:9507    203:9065    204:4627    205:2747   
 206:2983    207:2999    208:3940    209:3925    210:3514    211:1862   
 212:2485    213:2268    214:868     215:70      216:5544    217:1806   
 218:676     219:451     220:1429    221:789     222:466     223:658    


End of report



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