[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 20 18:12:42 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 Feb, 2015

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

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

BGP routing table entries examined:                              533255
    Prefixes after maximum aggregation (per Origin AS):          204025
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      259930
Total ASes present in the Internet Routing Table:                 49437
    Prefixes per ASN:                                             10.79
Origin-only ASes present in the Internet Routing Table:           36458
Origin ASes announcing only one prefix:                           16285
Transit ASes present in the Internet Routing Table:                6273
Transit-only ASes present in the Internet Routing Table:            171
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                     107
    Max AS path prepend of ASN ( 55644)                             100
Prefixes from unregistered ASNs in the Routing Table:              1334
    Unregistered ASNs in the Routing Table:                         436
Number of 32-bit ASNs allocated by the RIRs:                       8646
Number of 32-bit ASNs visible in the Routing Table:                6706
Prefixes from 32-bit ASNs in the Routing Table:                   24396
Number of bogon 32-bit ASNs visible in the Routing Table:             5
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            400
Number of addresses announced to Internet:                   2732253284
    Equivalent to 162 /8s, 218 /16s and 224 /24s
    Percentage of available address space announced:               73.8
    Percentage of allocated address space announced:               73.8
    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:      180436

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

Prefixes being announced by APNIC Region ASes:                   131658
    Total APNIC prefixes after maximum aggregation:               38372
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          137114
    Unique aggregates announced from the APNIC address blocks:    55712
APNIC Region origin ASes present in the Internet Routing Table:    5024
    APNIC Prefixes per ASN:                                       27.29
APNIC Region origin ASes announcing only one prefix:               1220
APNIC Region transit ASes present in the Internet Routing Table:    872
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                        107
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1310
Number of APNIC addresses announced to Internet:              747396800
    Equivalent to 44 /8s, 140 /16s and 94 /24s
    Percentage of available APNIC address space announced:         87.3

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:                    176104
    Total ARIN prefixes after maximum aggregation:                87045
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           178169
    Unique aggregates announced from the ARIN address blocks:     83527
ARIN Region origin ASes present in the Internet Routing Table:    16498
    ARIN Prefixes per ASN:                                        10.80
ARIN Region origin ASes announcing only one prefix:                6087
ARIN Region transit ASes present in the Internet Routing Table:    1714
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     352
Number of ARIN addresses announced to Internet:              1061271072
    Equivalent to 63 /8s, 65 /16s and 182 /24s
    Percentage of available ARIN address space announced:          56.1

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:                    129524
    Total RIPE prefixes after maximum aggregation:                64588
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           135852
    Unique aggregates announced from the RIPE address blocks:     83507
RIPE Region origin ASes present in the Internet Routing Table:    17873
    RIPE Prefixes per ASN:                                         7.60
RIPE Region origin ASes announcing only one prefix:                8145
RIPE Region transit ASes present in the Internet Routing Table:    2965
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:    3456
Number of RIPE addresses announced to Internet:               693406084
    Equivalent to 41 /8s, 84 /16s and 137 /24s
    Percentage of available RIPE address space announced:         100.8

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:                   58761
    Total LACNIC prefixes after maximum aggregation:              10997
    LACNIC Deaggregation factor:                                   5.34
Prefixes being announced from the LACNIC address blocks:          68139
    Unique aggregates announced from the LACNIC address blocks:   31758
LACNIC Region origin ASes present in the Internet Routing Table:   2400
    LACNIC Prefixes per ASN:                                      28.39
LACNIC Region origin ASes announcing only one prefix:               630
LACNIC Region transit ASes present in the Internet Routing Table:   490
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1499
Number of LACNIC addresses announced to Internet:             167785728
    Equivalent to 10 /8s, 0 /16s and 53 /24s
    Percentage of available LACNIC address space announced:       100.0

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:                  12620
    Total AfriNIC prefixes after maximum aggregation:              2979
    AfriNIC Deaggregation factor:                                  4.24
Prefixes being announced from the AfriNIC address blocks:         13581
    Unique aggregates announced from the AfriNIC address blocks:   5066
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     18.48
AfriNIC Region origin ASes announcing only one prefix:              203
AfriNIC Region transit ASes present in the Internet Routing Table:  156
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   89
Number of AfriNIC addresses announced to Internet:             61893888
    Equivalent to 3 /8s, 176 /16s and 109 /24s
    Percentage of available AfriNIC address space announced:       61.5

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     2891      11553         911   Korea Telecom
17974     2826        904          77   PT Telekomunikasi Indonesia
 7545     2580        336         128   TPG Telecom Limited
 4755     1977        421         205   TATA Communications formerly 
 4538     1758       4190          71   China Education and Research 
 9829     1660       1325          36   National Internet Backbone
 9808     1547       8717          29   Guangdong Mobile Communicatio
 4808     1451       2218         436   CNCGROUP IP network China169 
 9583     1395        132         556   Sify Limited
 9498     1299        336          97   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     2985       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2566      10684         480   Level 3 Communications, Inc.
18566     2041        379         183   MegaPath Corporation
20115     1849       1829         443   Charter Communications
 4323     1623       1037         407   tw telecom holdings, inc.
 6983     1623        850         242   EarthLink, Inc.
30036     1520        312         511   Mediacom Communications Corp
  701     1391      11268         678   MCI Communications Services, 
22561     1329        412         241   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     1965        300         352   TELLCOM ILETISIM HIZMETLERI A
20940     1619        632        1202   Akamai International B.V.
 8402     1344        544          15   OJSC "Vimpelcom"
 6849     1199        356          25   JSC "Ukrtelecom"
31148     1045         45          21   Freenet Ltd.
13188     1044         97          61   TOV "Bank-Inform"
 8551      903        373          48   Bezeq International-Ltd
12479      862        793          87   France Telecom Espana SA
 9198      850        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     3117        506         213   Telmex Colombia S.A.
28573     2307       2141         111   NET Serviços de Comunicação S
 7303     1788       1190         229   Telecom Argentina S.A.
 6147     1589        374          30   Telefonica del Peru S.A.A.
 8151     1543       3111         451   Uninet S.A. de C.V.
 6503     1196        421          58   Axtel, S.A.B. de C.V.
 7738     1001       1882          42   Telemar Norte Leste S.A.
26615      920       2325          35   Tim Celular S.A.
 3816      910        395         151   COLOMBIA TELECOMUNICACIONES S
18881      858       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     1556        958          13   TE-AS
24863      965        284          26   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      390        973          31   ETISALAT MISR
37492      319        155          71   Orange Tunisie
24835      299        144           9   Vodafone Data
 3741      250        921         209   Internet Solutions
29571      234         21          12   Cote d'Ivoire Telecom
36947      195        712          14   Telecom Algeria
37054      188         19           6   Data Telecom Service

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     3117        506         213   Telmex Colombia S.A.
22773     2985       2955         141   Cox Communications Inc.
 4766     2891      11553         911   Korea Telecom
 6389     2891       3688          51   BellSouth.net Inc.
17974     2826        904          77   PT Telekomunikasi Indonesia
 7545     2580        336         128   TPG Telecom Limited
 3356     2566      10684         480   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2307       2141         111   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      2985        2844      Cox Communications Inc.
 6389      2891        2840      BellSouth.net Inc.
17974      2826        2749      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2580        2452      TPG Telecom Limited
28573      2307        2196      NET Serviços de Comunicação S
 3356      2566        2086      Level 3 Communications, Inc.
 4766      2891        1980      Korea Telecom
18566      2041        1858      MegaPath Corporation
 4755      1977        1772      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
47092   UNALLOCATED  8.8.204.0/24         16410       The Reynolds and Rey
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

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
23.92.160.0/24       14013     EPSON America (Factory Automa
23.92.161.0/24       14013     EPSON America (Factory Automa
23.226.112.0/20      62788     Bitfinite LLC
23.252.224.0/20      62502     >>UNKNOWN<<
23.252.224.0/21      62502     >>UNKNOWN<<
23.252.232.0/21      62502     >>UNKNOWN<<
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU

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     
/13:504     /14:997     /15:1723    /16:12974   /17:7130    /18:12142   
/19:24903   /20:35716   /21:38479   /22:57743   /23:50414   /24:287236  
/25:1069    /26:1084    /27:670     /28:17      /29:14      /30:9       
/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     2201          2985      Cox Communications Inc.
18566     1996          2041      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1366          1520      Mediacom Communications Corp
 6983     1314          1623      EarthLink, Inc.
34984     1274          1965      TELLCOM ILETISIM HIZMETLERI A
11492     1133          1191      CABLE ONE, INC.
 6147     1132          1589      Telefonica del Peru S.A.A.
10620     1105          3117      Telmex Colombia S.A.

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

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

   1:1474      2:670       3:1         4:97        5:1716      6:21     
   8:1409     12:1842     13:4        14:1300     15:16       16:2      
  17:42       18:21       20:49       23:1163     24:1681     27:1851   
  31:1484     32:39       33:2        34:5        35:3        36:119    
  37:1862     38:1011     39:9        40:233      41:3046     42:259    
  43:1091     44:25       45:198      46:2116     47:34       49:795    
  50:783      52:12       54:66       55:4        56:8        57:33     
  58:1203     59:680      60:460      61:1765     62:1306     63:1914   
  64:4427     65:2263     66:4082     67:2023     68:1042     69:3284   
  70:965      71:435      72:1959     74:2620     75:314      76:404    
  77:1471     78:1255     79:778      80:1326     81:1332     82:813    
  83:680      84:682      85:1335     86:387      87:1082     88:501    
  89:1753     90:148      91:5915     92:808      93:2182     94:1958   
  95:2090     96:431      97:340      98:1054     99:45      100:73     
 101:800     103:6796    104:1266    105:61      106:217     107:886    
 108:611     109:2023    110:1078    111:1474    112:772     113:1030   
 114:853     115:1258    116:1332    117:1022    118:1688    119:1429   
 120:438     121:1044    122:2177    123:1718    124:1489    125:1564   
 128:628     129:373     130:380     131:1098    132:475     133:166    
 134:405     135:88      136:311     137:302     138:472     139:173    
 140:229     141:418     142:629     143:471     144:518     145:111    
 146:688     147:560     148:1104    149:458     150:563     151:748    
 152:485     153:239     154:325     155:725     156:403     157:331    
 158:264     159:991     160:372     161:633     162:1904    163:387    
 164:654     165:670     166:324     167:704     168:1003    169:149    
 170:1442    171:223     172:41      173:1580    174:688     175:622    
 176:1444    177:3757    178:2077    179:863     180:1918    181:1581   
 182:1705    183:603     184:743     185:2943    186:2669    187:1830   
 188:2012    189:1556    190:7744    191:877     192:8098    193:5562   
 194:4055    195:3632    196:1683    197:946     198:5501    199:5529   
 200:6537    201:2991    202:9552    203:9069    204:4655    205:2719   
 206:2978    207:2995    208:3953    209:3894    210:3492    211:1830   
 212:2467    213:2277    214:846     215:70      216:5544    217:1808   
 218:665     219:468     220:1457    221:790     222:463     223:654    


End of report


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