[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 5 18:04:06 UTC 2019


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 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 06 Jul, 2019

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

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

BGP routing table entries examined:                              760370
    Prefixes after maximum aggregation (per Origin AS):          293074
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      366150
Total ASes present in the Internet Routing Table:                 64764
    Prefixes per ASN:                                             11.74
Origin-only ASes present in the Internet Routing Table:           55696
Origin ASes announcing only one prefix:                           23947
Transit ASes present in the Internet Routing Table:                9068
Transit-only ASes present in the Internet Routing Table:            284
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:                22
    Number of instances of unregistered ASNs:                        24
Number of 32-bit ASNs allocated by the RIRs:                      27720
Number of 32-bit ASNs visible in the Routing Table:               22620
Prefixes from 32-bit ASNs in the Routing Table:                  102165
Number of bogon 32-bit ASNs visible in the Routing Table:            17
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            217
Number of addresses announced to Internet:                   2838933888
    Equivalent to 169 /8s, 54 /16s and 177 /24s
    Percentage of available address space announced:               76.7
    Percentage of allocated address space announced:               76.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.3
Total number of prefixes smaller than registry allocations:      252618

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

Prefixes being announced by APNIC Region ASes:                   205898
    Total APNIC prefixes after maximum aggregation:               61349
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          201560
    Unique aggregates announced from the APNIC address blocks:    84128
APNIC Region origin ASes present in the Internet Routing Table:    9868
    APNIC Prefixes per ASN:                                       20.43
APNIC Region origin ASes announcing only one prefix:               2749
APNIC Region transit ASes present in the Internet Routing Table:   1476
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4868
Number of APNIC addresses announced to Internet:              770901888
    Equivalent to 45 /8s, 243 /16s and 7 /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, 131072-141625
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:                    225924
    Total ARIN prefixes after maximum aggregation:               105561
    ARIN Deaggregation factor:                                     2.14
Prefixes being announced from the ARIN address blocks:           225090
    Unique aggregates announced from the ARIN address blocks:    106979
ARIN Region origin ASes present in the Internet Routing Table:    18511
    ARIN Prefixes per ASN:                                        12.16
ARIN Region origin ASes announcing only one prefix:                6867
ARIN Region transit ASes present in the Internet Routing Table:    1905
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2786
Number of ARIN addresses announced to Internet:              1067927168
    Equivalent to 63 /8s, 167 /16s and 70 /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, 393216-399260
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,  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:                    209782
    Total RIPE prefixes after maximum aggregation:                99531
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           205861
    Unique aggregates announced from the RIPE address blocks:    122658
RIPE Region origin ASes present in the Internet Routing Table:    26193
    RIPE Prefixes per ASN:                                         7.86
RIPE Region origin ASes announcing only one prefix:               11584
RIPE Region transit ASes present in the Internet Routing Table:    3732
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8244
Number of RIPE addresses announced to Internet:               720259712
    Equivalent to 42 /8s, 238 /16s and 74 /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
                       196608-210331
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:                   97349
    Total LACNIC prefixes after maximum aggregation:              22262
    LACNIC Deaggregation factor:                                   4.37
Prefixes being announced from the LACNIC address blocks:          98646
    Unique aggregates announced from the LACNIC address blocks:   42909
LACNIC Region origin ASes present in the Internet Routing Table:   8592
    LACNIC Prefixes per ASN:                                      11.48
LACNIC Region origin ASes announcing only one prefix:              2289
LACNIC Region transit ASes present in the Internet Routing Table:  1575
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        39
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6143
Number of LACNIC addresses announced to Internet:             173820928
    Equivalent to 10 /8s, 92 /16s and 76 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  21394
    Total AfriNIC prefixes after maximum aggregation:              4353
    AfriNIC Deaggregation factor:                                  4.91
Prefixes being announced from the AfriNIC address blocks:         28996
    Unique aggregates announced from the AfriNIC address blocks:   9283
AfriNIC Region origin ASes present in the Internet Routing Table:  1301
    AfriNIC Prefixes per ASN:                                     22.29
AfriNIC Region origin ASes announcing only one prefix:              458
AfriNIC Region transit ASes present in the Internet Routing Table:  255
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  579
Number of AfriNIC addresses announced to Internet:            105794560
    Equivalent to 6 /8s, 78 /16s and 76 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 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
  7545         4808        564     544  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3221       1459      31  VIETEL-AS-AP Viettel Group, VN
 45899         3013       1738     121  VNPT-AS-VN VNPT Corp, VN
  9808         2773       9043      63  CMNET-GD Guangdong Mobile Communication
  9829         2696       1489     562  BSNL-NIB National Internet Backbone, IN
  4766         2515      11119     760  KIXS-AS-KR Korea Telecom, KR
  4755         2142        428     183  TATACOMM-AS TATA Communications formerl
  9394         2094       4882      26  CTTNET China TieTong Telecommunications
  9498         2082        427     172  BBIL-AP BHARTI Airtel Ltd., IN
  7713         2058        608     612  TELKOMNET-AS-AP PT Telekomunikasi Indon

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
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3679        240     616  CABLEONE - CABLE ONE, INC., US
  6327         3577       1324      90  SHAW - Shaw Communications Inc., CA
 22773         3431       2974     157  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2984       6377    1368  AMAZON-02 - Amazon.com, Inc., US
 16625         2621       1378    1900  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2157        347     246  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2152       2762     524  CHARTER-20115 - Charter Communications,
 18566         2098        405     107  MEGAPATH5-US - MegaPath Corporation, US
  5650         2083       3074    1459  FRONTIER-FRTR - Frontier Communications

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         5435       1629     141  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3232        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2705        512    1934  AKAMAI-ASN1, US
 12389         2350       2230     662  ROSTELECOM-AS, RU
 34984         2095        344     546  TELLCOM-AS, TR
  9121         1641       1692      19  TTNET, TR
  9009         1631        177     876  M247, GB
 13188         1604        100      47  TRIOLAN, UA
 61317         1468        151     496  ASDETUK http://www.heficed.com, GB

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         6220       3355     592  Uninet S.A. de C.V., MX
 10620         3409        534     440  Telmex Colombia S.A., CO
 11830         2696        370      54  Instituto Costarricense de Electricidad
  7303         1474       1022     274  Telecom Argentina S.A., AR
  6503         1219        425      53  Axtel, S.A.B. de C.V., MX
 28573         1166       2243     206  CLARO S.A., BR
  6147         1095        377      31  Telefonica del Peru S.A.A., PE
  3816         1040        524     114  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999          975        468     241  Mega Cable, S.A. de C.V., MX
 11172          937        112      61  Alestra, S. de R.L. de C.V., MX

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         1171        393      22  LINKdotNET-AS, EG
 37611          970        107       9  Afrihost, ZA
 24835          885        634      22  RAYA-AS, EG
 36992          838       1535      77  ETISALAT-MISR, EG
 36903          831        418     129  MT-MPLS, MA
  8452          676       1859      20  TE-AS TE-AS, EG
 29571          518         68      11  ORANGE-COTE-IVOIRE, CI
 37492          483        470      56  ORANGE-, TN
 37342          408         32       1  MOVITEL, MZ
 15399          386         45      11  WANANCHI-, KE

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
  8151         6220       3355     592  Uninet S.A. de C.V., MX
 12479         5435       1629     141  UNI2-AS, ES
  7545         4808        564     544  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3679        240     616  CABLEONE - CABLE ONE, INC., US
  6327         3577       1324      90  SHAW - Shaw Communications Inc., CA
 22773         3431       2974     157  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3409        534     440  Telmex Colombia S.A., CO
  8551         3232        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne

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

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

  ASN   No of nets  Net Savings  Description
 12479       5435         5294   UNI2-AS, ES
  7545       4808         4264   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3577         3487   SHAW - Shaw Communications Inc., CA
 22773       3431         3274   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3221         3190   VIETEL-AS-AP Viettel Group, VN
  8551       3232         3186   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492       3679         3063   CABLEONE - CABLE ONE, INC., US
 10620       3409         2969   Telmex Colombia S.A., CO

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
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  64355   UNALLOCATED  156.40.196.0/24      30387       NIH-NET-NCCS - National Instit
  64011   UNALLOCATED  166.133.128.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.133.192.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.184.9.0/24       20057       ATT-MOBILITY-LLC-AS20057 - AT&

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
27.126.156.0/22      55827    UNKNOWN
27.126.156.0/23      55827    UNKNOWN
27.126.158.0/23      55827    UNKNOWN
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.78.180.0/23       37265    -Reserved AS-, ZZ
41.220.48.0/20       36900    -Reserved AS-, ZZ
41.242.92.0/24       37643    -Reserved AS-, ZZ
41.242.93.0/24       37643    -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        /8:10       /9:11      /10:37      /11:100     /12:294     
/13:569     /14:1135    /15:1911    /16:13256   /17:8002    /18:13939   
/19:25814   /20:40323   /21:47471   /22:95060   /23:76939   /24:434610  
/25:889     /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN   No of nets  Total ann.  Description
 12479     4389          5435    UNI2-AS, ES
  6327     3366          3577    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2883          3679    CABLEONE - CABLE ONE, INC., US
  8551     2685          3232    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2664          3431    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2044          2696    Instituto Costarricense de Electricidad y Telec
 18566     1993          2098    MEGAPATH5-US - MegaPath Corporation, US
 30036     1908          2157    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi

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

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

   1:1704      2:1054      3:6         4:19        5:3062      6:45     
   7:1         8:1342      9:1        11:1        12:1808     13:367    
  14:2065     15:38       16:6        17:258      18:79       20:57     
  23:2808     24:2574     25:4        27:2451     31:2018     32:99     
  35:37       36:877      37:3065     38:1770     39:289      40:120    
  41:3202     42:826      43:2096     44:151      45:8681     46:3343   
  47:261      49:1354     50:1109     51:337      52:1010     54:279    
  55:698      56:6        57:46       58:1768     59:1091     60:537    
  61:2198     62:1956     63:1856     64:4984     65:2210     66:4842   
  67:2775     68:1174     69:3553     70:1389     71:658      72:2633   
  74:2711     75:1295     76:569      77:1803     78:1836     79:2273   
  80:1851     81:1493     82:1132     83:944      84:1131     85:2299   
  86:557      87:1544     88:1051     89:2557     90:208      91:6601   
  92:1434     93:2473     94:2475     95:3320     96:945      97:339    
  98:961      99:789     100:87      101:1195    102:640     103:21667  
 104:3636    105:266     106:786     107:1758    108:697     109:3778   
 110:1728    111:2019    112:1526    113:1386    114:1240    115:1735   
 116:1760    117:1925    118:2175    119:1652    120:1056    121:1054   
 122:2248    123:1795    124:1497    125:2020    128:1358    129:840    
 130:550     131:1824    132:770     133:222     134:1097    135:250    
 136:598     137:780     138:2061    139:904     140:606     141:895    
 142:793     143:1056    144:883     145:275     146:1299    147:842    
 148:1719    149:984     150:788     151:1016    152:1091    153:337    
 154:4274    155:908     156:1649    157:1027    158:663     159:1949   
 160:1608    161:931     162:2958    163:829     164:1269    165:1496   
 166:478     167:1415    168:3441    169:897     170:4195    171:611    
 172:1663    173:2209    174:1040    175:990     176:2373    177:4013   
 178:2559    179:1375    180:2153    181:2354    182:2727    183:1103   
 184:2277    185:15360   186:3656    187:2479    188:2942    189:1989   
 190:8228    191:1453    192:10063   193:6747    194:5503    195:4150   
 196:2968    197:1614    198:5938    199:5977    200:7103    201:5109   
 202:10412   203:10193   204:4550    205:3073    206:3262    207:3239   
 208:3938    209:4271    210:3934    211:2045    212:3122    213:2975   
 214:1117    215:54      216:5895    217:2235    218:895     219:608    
 220:1907    221:976     222:979     223:1414   

End of report


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