Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 20 18:03:07 UTC 2018


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, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG 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 21 Apr, 2018

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

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

BGP routing table entries examined:                              696141
    Prefixes after maximum aggregation (per Origin AS):          268430
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      335330
Total ASes present in the Internet Routing Table:                 60451
    Prefixes per ASN:                                             11.52
Origin-only ASes present in the Internet Routing Table:           52213
Origin ASes announcing only one prefix:                           22858
Transit ASes present in the Internet Routing Table:                8238
Transit-only ASes present in the Internet Routing Table:            268
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      34
    Max AS path prepend of ASN ( 30873)                              32
Prefixes from unregistered ASNs in the Routing Table:                49
    Number of instances of unregistered ASNs:                        49
Number of 32-bit ASNs allocated by the RIRs:                      22275
Number of 32-bit ASNs visible in the Routing Table:               17911
Prefixes from 32-bit ASNs in the Routing Table:                   74601
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    3
Prefixes being announced from unallocated address space:            340
Number of addresses announced to Internet:                   2863051010
    Equivalent to 170 /8s, 166 /16s and 177 /24s
    Percentage of available address space announced:               77.3
    Percentage of allocated address space announced:               77.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.9
Total number of prefixes smaller than registry allocations:      231650

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

Prefixes being announced by APNIC Region ASes:                   190615
    Total APNIC prefixes after maximum aggregation:               54054
    APNIC Deaggregation factor:                                    3.53
Prefixes being announced from the APNIC address blocks:          189511
    Unique aggregates announced from the APNIC address blocks:    77395
APNIC Region origin ASes present in the Internet Routing Table:    8729
    APNIC Prefixes per ASN:                                       21.71
APNIC Region origin ASes announcing only one prefix:               2431
APNIC Region transit ASes present in the Internet Routing Table:   1311
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3687
Number of APNIC addresses announced to Internet:              767197698
    Equivalent to 45 /8s, 186 /16s and 130 /24s
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, 64297-64395, 131072-137529
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:                    207023
    Total ARIN prefixes after maximum aggregation:                98996
    ARIN Deaggregation factor:                                     2.09
Prefixes being announced from the ARIN address blocks:           207967
    Unique aggregates announced from the ARIN address blocks:     98338
ARIN Region origin ASes present in the Internet Routing Table:    18149
    ARIN Prefixes per ASN:                                        11.46
ARIN Region origin ASes announcing only one prefix:                6715
ARIN Region transit ASes present in the Internet Routing Table:    1792
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2336
Number of ARIN addresses announced to Internet:              1109260960
    Equivalent to 66 /8s, 29 /16s and 250 /24s
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, 393216-397212
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:                    189988
    Total RIPE prefixes after maximum aggregation:                91532
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           185878
    Unique aggregates announced from the RIPE address blocks:    110829
RIPE Region origin ASes present in the Internet Routing Table:    25117
    RIPE Prefixes per ASN:                                         7.40
RIPE Region origin ASes announcing only one prefix:               11405
RIPE Region transit ASes present in the Internet Routing Table:    3505
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    6911
Number of RIPE addresses announced to Internet:               715628160
    Equivalent to 42 /8s, 167 /16s and 158 /24s
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, 64396-64495
                       196608-207259
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:                   89797
    Total LACNIC prefixes after maximum aggregation:              19767
    LACNIC Deaggregation factor:                                   4.54
Prefixes being announced from the LACNIC address blocks:          91186
    Unique aggregates announced from the LACNIC address blocks:   40836
LACNIC Region origin ASes present in the Internet Routing Table:   7029
    LACNIC Prefixes per ASN:                                      12.97
LACNIC Region origin ASes announcing only one prefix:              1934
LACNIC Region transit ASes present in the Internet Routing Table:  1304
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        32
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4569
Number of LACNIC addresses announced to Internet:             172626400
    Equivalent to 10 /8s, 74 /16s and 17 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + 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:                  18667
    Total AfriNIC prefixes after maximum aggregation:              4036
    AfriNIC Deaggregation factor:                                  4.63
Prefixes being announced from the AfriNIC address blocks:         21259
    Unique aggregates announced from the AfriNIC address blocks:   7635
AfriNIC Region origin ASes present in the Internet Routing Table:  1132
    AfriNIC Prefixes per ASN:                                     18.78
AfriNIC Region origin ASes announcing only one prefix:              372
AfriNIC Region transit ASes present in the Internet Routing Table:  229
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  408
Number of AfriNIC addresses announced to Internet:             97927680
    Equivalent to 5 /8s, 214 /16s and 66 /24s
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         5404       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4380        415     430  TPG-INTERNET-AP TPG Telecom Limited, AU
  4766         2897      11134     789  KIXS-AS-KR Korea Telecom, KR
  9829         2810       1499     545  BSNL-NIB National Internet Backbone, IN
  7552         2735       1155      69  VIETEL-AS-AP Viettel Group, VN
  9394         2641       4922      26  CTTNET China TieTong Telecommunications
 45899         2574       1572     158  VNPT-AS-VN VNPT Corp, VN
 17974         2336        928      79  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2189       8699      32  CMNET-GD Guangdong Mobile Communication
  4755         2093        417     214  TATACOMM-AS TATA Communications formerl

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
  6327         3386       1323      85  SHAW - Shaw Communications Inc., CA
 22773         3288       2988     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 18566         2168        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2092       2489     452  CHARTER-NET-HKY-NC - Charter Communicat
 16509         2057       4445     640  AMAZON-02 - Amazon.com, Inc., US
   209         1965       5070     607  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1961        339     182  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 11492         1809        228     548  CABLEONE - CABLE ONE, INC., US
 16625         1762        862    1257  AKAMAI-AS - Akamai Technologies, Inc., 
  7018         1697      20212    1254  ATT-INTERNET4 - AT&T Services, Inc., US

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
 12479         4073       1514     507  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 20940         2672        731    1962  AKAMAI-ASN1, US
  8551         2134        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389         2032       1860     705  ROSTELECOM-AS, RU
 34984         2016        334     485  TELLCOM-AS, TR
  9121         1974       1692      19  TTNET, TR
 13188         1610        100      43  TRIOLAN, UA
  6849         1241        355      21  UKRTELNET, UA
  8402         1233        544      14  CORBINA-AS OJSC "Vimpelcom", RU

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
  8151         4443       3387     586  Uninet S.A. de C.V., MX
 10620         3585        541     254  Telmex Colombia S.A., CO
 11830         2642        369      86  Instituto Costarricense de Electricidad
  6503         1626        437      53  Axtel, S.A.B. de C.V., MX
  7303         1518       1024     191  Telecom Argentina S.A., AR
 28573         1038       2255     176  CLARO S.A., BR
  3816         1008        505     122  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147         1005        377      31  Telefonica del Peru S.A.A., PE
 11172          928        126      85  Alestra, S. de R.L. de C.V., MX
 18881          908       1074      29  TELEFÔNICA BRASIL S.A, BR

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         1176        396      45  LINKdotNET-AS, EG
 37611          829        107       9  Afrihost, ZA
 36903          741        372     137  MT-MPLS, MA
 36992          672       1412      41  ETISALAT-MISR, EG
  8452          641       1730      18  TE-AS TE-AS, EG
 24835          597        850      15  RAYA-AS, EG
 29571          474         68      12  ORANGE-COTE-IVOIRE, CI
 37492          451        376      81  ORANGE-, TN
 15399          361         35       7  WANANCHI-, KE
 37342          361         32       1  MOVITEL, MZ

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         5404       4192      74  ERX-CERNET-BKB China Education and Rese
  8151         4443       3387     586  Uninet S.A. de C.V., MX
  7545         4380        415     430  TPG-INTERNET-AP TPG Telecom Limited, AU
 12479         4073       1514     507  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3585        541     254  Telmex Colombia S.A., CO
  6327         3386       1323      85  SHAW - Shaw Communications Inc., CA
 22773         3288       2988     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  4766         2897      11134     789  KIXS-AS-KR Korea Telecom, KR
  9829         2810       1499     545  BSNL-NIB National Internet Backbone, IN

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

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

  ASN   No of nets  Net Savings  Description
  7545       4380         3950   TPG-INTERNET-AP TPG Telecom Limited, AU
  8151       4443         3857   Uninet S.A. de C.V., MX
 39891       3778         3758   ALJAWWALSTC-AS, SA
 12479       4073         3566   UNI2-AS, ES
 10620       3585         3331   Telmex Colombia S.A., CO
  6327       3386         3301   SHAW - Shaw Communications Inc., CA
 22773       3288         3139   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       2735         2666   VIETEL-AS-AP Viettel Group, VN
  9394       2641         2615   CTTNET China TieTong Telecommunications Corpora
 11830       2642         2556   Instituto Costarricense de Electricidad y Telec

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

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

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
  65024   PRIVATE      87.103.234.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.78.0/24       39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.80.0/22       39407       CHITATELECOM-AS, RU
  64111   UNALLOCATED  98.159.5.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64111   UNALLOCATED  98.159.7.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64121   UNALLOCATED  98.159.9.0/24        19555       KMI-NETWORK - Kinder Morgan, I

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati
100.127.16.0/23      28885     OMANTEL-NAP-AS OmanTel NAP, OM
100.127.18.0/23      28885     OMANTEL-NAP-AS OmanTel NAP, OM

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

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

Network            Origin AS  Description
14.128.14.0/23       10247    NETLINE, ZA
14.192.48.0/24      327815    XNET, NA
14.192.50.0/23       10247    NETLINE, ZA
14.192.58.0/23       10247    NETLINE, ZA
27.100.7.0/24        56096    UNKNOWN
36.255.250.0/23      10247    NETLINE, ZA
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       37500    -Reserved AS-, ZZ

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        /8:15       /9:12      /10:37      /11:100     /12:288     
/13:565     /14:1096    /15:1900    /16:13401   /17:7827    /18:13644   
/19:25153   /20:39337   /21:45283   /22:86502   /23:70144   /24:388600  
/25:848     /26:604     /27:655     /28:36      /29:20      /30:17      
/31:4       /32:53      

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

   ASN   No of nets  Total ann.  Description
  6327     3174          3386    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 12479     2811          4073    UNI2-AS, ES
 22773     2542          3288    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2061          2168    MEGAPATH5-US - MegaPath Corporation, US
 11830     1990          2642    Instituto Costarricense de Electricidad y Telec
 30036     1712          1961    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 10620     1601          3585    Telmex Colombia S.A., CO
  8551     1597          2134    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492     1560          1809    CABLEONE - CABLE ONE, INC., US

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

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

   1:1592      2:830       4:19        5:2794      6:65        7:1      
   8:1117     12:1864     13:184      14:1738     15:30       16:3      
  17:203      18:68       20:47       21:4        23:2607     24:2161   
  25:2        27:2269     31:1974     32:88       35:27       36:510    
  37:2768     38:1448     39:256      40:119      41:3064     42:574    
  43:1951     44:105      45:4214     46:3061     47:204      49:1323   
  50:1051     51:304      52:991      54:372      55:5        56:12     
  57:42       58:1537     59:993      60:430      61:2151     62:1816   
  63:1795     64:4894     65:2220     66:4591     67:2361     68:1146   
  69:3192     70:1147     71:561      72:2095     74:2715     75:411    
  76:435      77:1553     78:1703     79:1925     80:1482     81:1404   
  82:1077     83:775      84:1042     85:2060     86:580      87:1313   
  88:935      89:2320     90:207      91:6321     92:1177     93:2378   
  94:2395     95:2777     96:662      97:357      98:946      99:133    
 100:81      101:1277    102:40      103:17543   104:3593    105:231    
 106:660     107:1812    108:709     109:2707    110:1598    111:1775   
 112:1277    113:1338    114:1123    115:1637    116:1645    117:1718   
 118:2156    119:1668    120:970     121:1056    122:2450    123:1808   
 124:1450    125:1893    128:994     129:648     130:453     131:1587   
 132:672     133:196     134:1016    135:228     136:458     137:495    
 138:1933    139:595     140:423     141:697     142:808     143:965    
 144:812     145:457     146:1178    147:781     148:1584    149:707    
 150:737     151:1056    152:763     153:311     154:1020    155:760    
 156:926     157:785     158:638     159:1670    160:937     161:750    
 162:2581    163:527     164:1054    165:1571    166:432     167:1403   
 168:3067    169:806     170:3685    171:429     172:1080    173:1964   
 174:885     175:754     176:1865    177:3999    178:2431    179:1219   
 180:2254    181:2208    182:2390    183:1141    184:918     185:13330  
 186:3617    187:2381    188:2741    189:2027    190:8090    191:1448   
 192:9842    193:5881    194:4774    195:3959    196:2524    197:1427   
 198:5539    199:5883    200:7391    201:5020    202:10406   203:10181  
 204:4534    205:2875    206:3088    207:3200    208:3978    209:3947   
 210:4039    211:2115    212:3023    213:2724    214:950     215:62     
 216:5912    217:2140    218:908     219:619     220:1756    221:995    
 222:1037    223:1246   

End of report


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