[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 8 18:10:30 UTC 2016


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,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.

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 09 Apr, 2016

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

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

BGP routing table entries examined:                              589751
    Prefixes after maximum aggregation (per Origin AS):          216647
    Deaggregation factor:                                          2.72
    Unique aggregates announced (without unneeded subnets):      288363
Total ASes present in the Internet Routing Table:                 53345
    Prefixes per ASN:                                             11.06
Origin-only ASes present in the Internet Routing Table:           36594
Origin ASes announcing only one prefix:                           15723
Transit ASes present in the Internet Routing Table:                6418
Transit-only ASes present in the Internet Routing Table:            174
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      39
    Max AS path prepend of ASN ( 40285)                              34
Prefixes from unregistered ASNs in the Routing Table:               960
    Unregistered ASNs in the Routing Table:                         357
Number of 32-bit ASNs allocated by the RIRs:                      13382
Number of 32-bit ASNs visible in the Routing Table:               10333
Prefixes from 32-bit ASNs in the Routing Table:                   40300
Number of bogon 32-bit ASNs visible in the Routing Table:            13
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            396
Number of addresses announced to Internet:                   2806952004
    Equivalent to 167 /8s, 78 /16s and 176 /24s
    Percentage of available address space announced:               75.8
    Percentage of allocated address space announced:               75.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.1
Total number of prefixes smaller than registry allocations:      192907

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

Prefixes being announced by APNIC Region ASes:                   151042
    Total APNIC prefixes after maximum aggregation:               42035
    APNIC Deaggregation factor:                                    3.59
Prefixes being announced from the APNIC address blocks:          161299
    Unique aggregates announced from the APNIC address blocks:    65695
APNIC Region origin ASes present in the Internet Routing Table:    5147
    APNIC Prefixes per ASN:                                       31.34
APNIC Region origin ASes announcing only one prefix:               1185
APNIC Region transit ASes present in the Internet Routing Table:    910
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1975
Number of APNIC addresses announced to Internet:              751850820
    Equivalent to 44 /8s, 208 /16s and 85 /24s
    Percentage of available APNIC address space announced:         87.9

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:                    180298
    Total ARIN prefixes after maximum aggregation:                89148
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           185444
    Unique aggregates announced from the ARIN address blocks:     87967
ARIN Region origin ASes present in the Internet Routing Table:    16393
    ARIN Prefixes per ASN:                                        11.31
ARIN Region origin ASes announcing only one prefix:                5871
ARIN Region transit ASes present in the Internet Routing Table:    1713
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          37
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1120
Number of ARIN addresses announced to Internet:              1101672000
    Equivalent to 65 /8s, 170 /16s and 46 /24s
    Percentage of available ARIN address space announced:          58.3

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, 64198-64296, 393216-395164
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:                    141875
    Total RIPE prefixes after maximum aggregation:                70011
    RIPE Deaggregation factor:                                     2.03
Prefixes being announced from the RIPE address blocks:           150551
    Unique aggregates announced from the RIPE address blocks:     92796
RIPE Region origin ASes present in the Internet Routing Table:    18062
    RIPE Prefixes per ASN:                                         8.34
RIPE Region origin ASes announcing only one prefix:                7904
RIPE Region transit ASes present in the Internet Routing Table:    2997
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4631
Number of RIPE addresses announced to Internet:               704286592
    Equivalent to 41 /8s, 250 /16s and 143 /24s
    Percentage of available RIPE address space announced:         102.4

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, 196608-204287
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:                   61962
    Total LACNIC prefixes after maximum aggregation:              12210
    LACNIC Deaggregation factor:                                   5.07
Prefixes being announced from the LACNIC address blocks:          76046
    Unique aggregates announced from the LACNIC address blocks:   35816
LACNIC Region origin ASes present in the Internet Routing Table:   2470
    LACNIC Prefixes per ASN:                                      30.79
LACNIC Region origin ASes announcing only one prefix:               577
LACNIC Region transit ASes present in the Internet Routing Table:   553
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2407
Number of LACNIC addresses announced to Internet:             170680384
    Equivalent to 10 /8s, 44 /16s and 96 /24s
    Percentage of available LACNIC address space announced:       101.7

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:                  14193
    Total AfriNIC prefixes after maximum aggregation:              3202
    AfriNIC Deaggregation factor:                                  4.43
Prefixes being announced from the AfriNIC address blocks:         16015
    Unique aggregates announced from the AfriNIC address blocks:   5732
AfriNIC Region origin ASes present in the Internet Routing Table:   740
    AfriNIC Prefixes per ASN:                                     21.64
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  170
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  200
Number of AfriNIC addresses announced to Internet:             78087168
    Equivalent to 4 /8s, 167 /16s and 132 /24s
    Percentage of available AfriNIC address space announced:       77.6

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
 4538     5594       4192          76   China Education and Research 
 7545     3299        353         199   TPG Telecom Limited
 4766     3153      11142        1119   Korea Telecom
17974     2920        914          96   PT Telekomunikasi Indonesia
 9829     2471       1456         445   National Internet Backbone
 4755     2099        432         243   TATA Communications formerly 
 9808     1855       8717          30   Guangdong Mobile Communicatio
 4808     1657       2299         539   CNCGROUP IP network China169 
 4788     1537        645          62   TM Net, Internet Service Prov
38197     1508         93         203   Sun Network (Hong Kong) Limit

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     3355       2948         148   Cox Communications Inc.
 6389     2357       3687          42   BellSouth.net Inc.
18566     2209        394         276   MegaPath Corporation
20115     1922       1933         403   Charter Communications
30036     1753        345         215   Mediacom Communications Corp
 6983     1691        849         231   EarthLink, Inc.
 4323     1568       1004         386   tw telecom holdings, inc.
  209     1543       4619        1225   Qwest Communications Company,
  701     1399      11446         660   MCI Communications Services, 
11492     1271        235         601   CABLE ONE, INC.

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     2708        143          10   SaudiNet, Saudi Telecom Compa
20940     2423        931        1761   Akamai International B.V.
34984     1960        323         413   TELLCOM ILETISIM HIZMETLERI A
 8551     1412        376          56   Bezeq International-Ltd
 6849     1152        355          21   JSC "Ukrtelecom"
12479     1150        981          86   France Telecom Espana SA
 8402     1088        544          15   OJSC "Vimpelcom"
13188     1079         98          69   TOV "Bank-Inform"
31148     1035         47          41   Freenet Ltd.
 6830      889       2711         463   Liberty Global Operations B.V

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     3439        539         176   Telmex Colombia S.A.
 8151     2219       3312         543   Uninet S.A. de C.V.
 7303     1510        939         240   Telecom Argentina S.A.
11830     1477        368          51   Instituto Costarricense de El
 6503     1434        453          56   Axtel, S.A.B. de C.V.
 6147     1055        377          27   Telefonica del Peru S.A.A.
 3816      995        478         185   COLOMBIA TELECOMUNICACIONES S
26615      993       2325          34   Tim Celular S.A.
 7738      987       1882          40   Telemar Norte Leste S.A.
28573      879       2175         156   NET Serviços de Comunicação S

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
24863     1229        402          40   Link Egypt (Link.NET)
37611      643         48           2   Afrihost-Brevis Computer Serv
 8452      619       1472          15   TE-AS
36903      585        294         107   Office National des Postes et
36992      509       1357          25   ETISALAT MISR
37492      370        225          65   Orange Tunisie
24835      297        210          13   Vodafone Data
29571      280         37          12   Cote d'Ivoire Telecom
 2018      256        327          74   TENET (The UNINET Project)
36947      236        807          13   Telecom Algeria

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
 4538     5594       4192          76   China Education and Research 
10620     3439        539         176   Telmex Colombia S.A.
22773     3355       2948         148   Cox Communications Inc.
 7545     3299        353         199   TPG Telecom Limited
 4766     3153      11142        1119   Korea Telecom
17974     2920        914          96   PT Telekomunikasi Indonesia
39891     2708        143          10   SaudiNet, Saudi Telecom Compa
 9829     2471       1456         445   National Internet Backbone
20940     2423        931        1761   Akamai International B.V.
 6389     2357       3687          42   BellSouth.net Inc.

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

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

  ASN   No of nets  Net Savings Description
10620      3439        3263      Telmex Colombia S.A.
22773      3355        3207      Cox Communications Inc.
 7545      3299        3100      TPG Telecom Limited
17974      2920        2824      PT Telekomunikasi Indonesia
39891      2708        2698      SaudiNet, Saudi Telecom Compa
 6389      2357        2315      BellSouth.net Inc.
 4766      3153        2034      Korea Telecom
 9829      2471        2026      National Internet Backbone
18566      2209        1933      MegaPath Corporation
 4755      2099        1856      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
16589   UNALLOCATED  8.20.247.0/24        35838       CCANET Limited
16589   UNALLOCATED  8.26.56.0/24         35838       CCANET Limited
46473   UNALLOCATED  8.27.122.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.124.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.22.0/24         32787       Prolexic Technologie
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I

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
23.178.0.0/24        23456     32bit Transition AS
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
27.100.7.0/24        56096     >>UNKNOWN<<
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.
37.46.15.0/24        36351     SoftLayer Technologies Inc.
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         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       /9:13      /10:36      /11:101     /12:267     
/13:512     /14:1029    /15:1758    /16:12964   /17:7576    /18:12737   
/19:25828   /20:38174   /21:40038   /22:65173   /23:56630   /24:325217  
/25:552     /26:595     /27:412     /28:45      /29:31      /30:14      
/31:1       /32:32      

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

  ASN   No of nets  Total ann.   Description
39891     2664          2708      SaudiNet, Saudi Telecom Compa
22773     2532          3355      Cox Communications Inc.
18566     2111          2209      MegaPath Corporation
30036     1567          1753      Mediacom Communications Corp
 6389     1499          2357      BellSouth.net Inc.
 6983     1340          1691      EarthLink, Inc.
10620     1340          3439      Telmex Colombia S.A.
34984     1245          1960      TELLCOM ILETISIM HIZMETLERI A
11492     1175          1271      CABLE ONE, INC.
 6849      970          1152      JSC "Ukrtelecom"

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

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

   1:1661      2:735       4:20        5:2046      6:28        8:946    
  12:1778     13:39       14:1669     15:45       16:2        17:77     
  18:89       20:48       23:1445     24:1780     27:2281     31:1761   
  32:54       33:2        34:2        35:5        36:279      37:2263   
  38:1182     39:24       40:87       41:2781     42:393      43:1704   
  44:41       45:1783     46:2480     47:74       49:1140     50:844    
  51:8        52:143      54:220      55:4        56:6        57:45     
  58:1535     59:873      60:570      61:1814     62:1482     63:1920   
  64:4473     65:2149     66:4299     67:2170     68:1101     69:3279   
  70:1063     71:468      72:1984     74:2542     75:340      76:418    
  77:1340     78:1270     79:837      80:1329     81:1360     82:940    
  83:687      84:816      85:1580     86:472      87:1015     88:561    
  89:1947     90:168      91:6058     92:850      93:2319     94:2313   
  95:2306     96:475      97:358      98:956      99:45      100:71     
 101:1018    103:10298   104:2347    105:162     106:392     107:1081   
 108:676     109:2276    110:1259    111:1658    112:960     113:1140   
 114:1040    115:1699    116:1539    117:1426    118:2151    119:1580   
 120:521     121:1166    122:2212    123:2009    124:1620    125:1760   
 128:716     129:381     130:413     131:1316    132:628     133:174    
 134:451     135:123     136:372     137:349     138:1716    139:239    
 140:251     141:467     142:642     143:883     144:611     145:162    
 146:853     147:675     148:1456    149:496     150:653     151:765    
 152:608     153:277     154:573     155:950     156:491     157:473    
 158:342     159:1108    160:450     161:740     162:2294    163:547    
 164:753     165:1039    166:313     167:1103    168:1675    169:638    
 170:1583    171:271     172:527     173:1697    174:729     175:909    
 176:1678    177:4076    178:2241    179:1145    180:2064    181:1724   
 182:1907    183:681     184:788     185:6120    186:3127    187:2117   
 188:2154    189:1744    190:7700    191:1199    192:8932    193:5723   
 194:4367    195:3773    196:1713    197:1064    198:5541    199:5655   
 200:6942    201:3713    202:10112   203:9662    204:4656    205:2702   
 206:2982    207:3079    208:4060    209:3789    210:3937    211:2011   
 212:2633    213:2190    214:836     215:72      216:5738    217:1932   
 218:763     219:567     220:1678    221:858     222:663     223:970    


End of report


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