[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 12 18:04:02 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 13 Jul, 2019

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

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

BGP routing table entries examined:                              761180
    Prefixes after maximum aggregation (per Origin AS):          293683
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      366839
Total ASes present in the Internet Routing Table:                 64866
    Prefixes per ASN:                                             11.73
Origin-only ASes present in the Internet Routing Table:           55778
Origin ASes announcing only one prefix:                           23989
Transit ASes present in the Internet Routing Table:                9088
Transit-only ASes present in the Internet Routing Table:            273
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 22394)                              37
Prefixes from unregistered ASNs in the Routing Table:                25
    Number of instances of unregistered ASNs:                        26
Number of 32-bit ASNs allocated by the RIRs:                      27802
Number of 32-bit ASNs visible in the Routing Table:               22729
Prefixes from 32-bit ASNs in the Routing Table:                  102887
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            240
Number of addresses announced to Internet:                   2839111680
    Equivalent to 169 /8s, 57 /16s and 104 /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:      253134

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

Prefixes being announced by APNIC Region ASes:                   205697
    Total APNIC prefixes after maximum aggregation:               61433
    APNIC Deaggregation factor:                                    3.35
Prefixes being announced from the APNIC address blocks:          201225
    Unique aggregates announced from the APNIC address blocks:    84136
APNIC Region origin ASes present in the Internet Routing Table:    9904
    APNIC Prefixes per ASN:                                       20.32
APNIC Region origin ASes announcing only one prefix:               2770
APNIC Region transit ASes present in the Internet Routing Table:   1482
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4904
Number of APNIC addresses announced to Internet:              771115264
    Equivalent to 45 /8s, 246 /16s and 73 /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:                    226145
    Total ARIN prefixes after maximum aggregation:               105748
    ARIN Deaggregation factor:                                     2.14
Prefixes being announced from the ARIN address blocks:           225278
    Unique aggregates announced from the ARIN address blocks:    107103
ARIN Region origin ASes present in the Internet Routing Table:    18523
    ARIN Prefixes per ASN:                                        12.16
ARIN Region origin ASes announcing only one prefix:                6879
ARIN Region transit ASes present in the Internet Routing Table:    1908
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:    2799
Number of ARIN addresses announced to Internet:              1067629184
    Equivalent to 63 /8s, 162 /16s and 186 /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:                    210213
    Total RIPE prefixes after maximum aggregation:                99783
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           206369
    Unique aggregates announced from the RIPE address blocks:    123042
RIPE Region origin ASes present in the Internet Routing Table:    26224
    RIPE Prefixes per ASN:                                         7.87
RIPE Region origin ASes announcing only one prefix:               11597
RIPE Region transit ASes present in the Internet Routing Table:    3740
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:    8271
Number of RIPE addresses announced to Internet:               720591744
    Equivalent to 42 /8s, 243 /16s and 91 /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:                   97530
    Total LACNIC prefixes after maximum aggregation:              22349
    LACNIC Deaggregation factor:                                   4.36
Prefixes being announced from the LACNIC address blocks:          98815
    Unique aggregates announced from the LACNIC address blocks:   43026
LACNIC Region origin ASes present in the Internet Routing Table:   8624
    LACNIC Prefixes per ASN:                                      11.46
LACNIC Region origin ASes announcing only one prefix:              2287
LACNIC Region transit ASes present in the Internet Routing Table:  1580
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        39
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6175
Number of LACNIC addresses announced to Internet:             173755392
    Equivalent to 10 /8s, 91 /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:                  21569
    Total AfriNIC prefixes after maximum aggregation:              4349
    AfriNIC Deaggregation factor:                                  4.96
Prefixes being announced from the AfriNIC address blocks:         29253
    Unique aggregates announced from the AfriNIC address blocks:   9320
AfriNIC Region origin ASes present in the Internet Routing Table:  1301
    AfriNIC Prefixes per ASN:                                     22.49
AfriNIC Region origin ASes announcing only one prefix:              456
AfriNIC Region transit ASes present in the Internet Routing Table:  253
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  580
Number of AfriNIC addresses announced to Internet:            105781248
    Equivalent to 6 /8s, 78 /16s and 24 /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         4821        574     554  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3188       1459      31  VIETEL-AS-AP Viettel Group, VN
 45899         3052       1765     114  VNPT-AS-VN VNPT Corp, VN
  9808         2765       9043      63  CMNET-GD Guangdong Mobile Communication
  9829         2696       1489     562  BSNL-NIB National Internet Backbone, IN
  4766         2507      11118     759  KIXS-AS-KR Korea Telecom, KR
  4755         2143        427     182  TATACOMM-AS TATA Communications formerl
  9498         2117        430     198  BBIL-AP BHARTI Airtel Ltd., IN
  9394         2080       4898      27  CTTNET China TieTong Telecommunications
  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         3677        240     616  CABLEONE - CABLE ONE, INC., US
  6327         3563       1324      90  SHAW - Shaw Communications Inc., CA
 22773         3435       2974     158  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         3023       6386    1415  AMAZON-02 - Amazon.com, Inc., US
 16625         2627       1377    1906  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2156        347     259  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2151       2762     524  CHARTER-20115 - Charter Communications,
 18566         2096        405     107  MEGAPATH5-US - MegaPath Corporation, US
  5650         2084       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         5455       1629     141  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3314        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2700        514    1929  AKAMAI-ASN1, US
 12389         2339       2226     658  ROSTELECOM-AS, RU
 34984         2096        344     547  TELLCOM-AS, TR
  9009         1631        176     879  M247, GB
  9121         1616       1692      19  TTNET, TR
 13188         1604        100      47  TRIOLAN, UA
 61317         1469        154     516  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         6236       3367     599  Uninet S.A. de C.V., MX
 10620         3407        535     435  Telmex Colombia S.A., CO
 11830         2695        370      54  Instituto Costarricense de Electricidad
  7303         1475       1021     274  Telecom Argentina S.A., AR
  6503         1216        425      54  Axtel, S.A.B. de C.V., MX
 28573         1164       2225     207  CLARO S.A., BR
  6147         1096        377      31  Telefonica del Peru S.A.A., PE
  3816         1044        525     115  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999          976        470     242  Mega Cable, S.A. de C.V., MX
 11172          935        112      60  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         1187        393      22  LINKdotNET-AS, EG
 37611          970        107       9  Afrihost, ZA
 24835          885        634      22  RAYA-AS, EG
 36903          842        423     114  MT-MPLS, MA
 36992          815       1531      88  ETISALAT-MISR, EG
  8452          660       1859      20  TE-AS TE-AS, EG
 29571          516         68      11  ORANGE-COTE-IVOIRE, CI
 37492          482        470      57  ORANGE-, TN
 37342          405         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         6236       3367     599  Uninet S.A. de C.V., MX
 12479         5455       1629     141  UNI2-AS, ES
  7545         4821        574     554  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         3677        240     616  CABLEONE - CABLE ONE, INC., US
  6327         3563       1324      90  SHAW - Shaw Communications Inc., CA
 22773         3435       2974     158  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3407        535     435  Telmex Colombia S.A., CO
  8551         3314        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       5455         5314   UNI2-AS, ES
  7545       4821         4267   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3563         3473   SHAW - Shaw Communications Inc., CA
 22773       3435         3277   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3314         3268   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       3188         3157   VIETEL-AS-AP Viettel Group, VN
 11492       3677         3061   CABLEONE - CABLE ONE, INC., US
 10620       3407         2972   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
 260984   UNALLOCATED  45.175.186.0/23      16735       ALGAR TELECOM S/A, BR
 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&

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
36.255.24.0/24       40676    AS40676 - Psychz Networks, US
36.255.25.0/24       40676    AS40676 - Psychz Networks, US
36.255.26.0/24       40676    AS40676 - Psychz Networks, US
36.255.27.0/24       40676    AS40676 - Psychz Networks, US
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/22       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        /8:10       /9:11      /10:37      /11:100     /12:294     
/13:569     /14:1134    /15:1907    /16:13270   /17:8021    /18:13945   
/19:25842   /20:40342   /21:47223   /22:95223   /23:77058   /24:435307  
/25:887     /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     4406          5455    UNI2-AS, ES
  6327     3352          3563    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2880          3677    CABLEONE - CABLE ONE, INC., US
  8551     2767          3314    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2668          3435    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2043          2695    Instituto Costarricense de Electricidad y Telec
 18566     1991          2096    MEGAPATH5-US - MegaPath Corporation, US
 30036     1907          2156    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)
----------------------------------------------

   1:1709      2:1072      3:6         4:20        5:3084      6:46     
   7:2         8:1341      9:1        12:1802     13:378      14:2067   
  15:38       16:7        17:259      18:79       20:56       23:2821   
  24:2578     25:4        27:2432     31:2012     32:101      35:37     
  36:885      37:3072     38:1772     39:293      40:121      41:3195   
  42:828      43:2094     44:153      45:8799     46:3366     47:263    
  49:1350     50:1110     51:337      52:1011     54:279      55:678    
  56:6        57:46       58:1763     59:1095     60:547      61:2177   
  62:1960     63:1864     64:4989     65:2215     66:4830     67:2774   
  68:1177     69:3553     70:1397     71:656      72:2637     74:2723   
  75:1294     76:570      77:1799     78:1866     79:2355     80:1837   
  81:1495     82:1135     83:945      84:1128     85:2301     86:556    
  87:1548     88:1048     89:2573     90:213      91:6612     92:1444   
  93:2479     94:2474     95:3330     96:946      97:340      98:961    
  99:793     100:88      101:1185    102:655     103:21702   104:3634   
 105:267     106:810     107:1767    108:690     109:3785    110:1720   
 111:2015    112:1529    113:1389    114:1240    115:1730    116:1760   
 117:1937    118:2178    119:1644    120:1056    121:1053    122:2269   
 123:1793    124:1505    125:2023    128:1360    129:830     130:552    
 131:1815    132:765     133:222     134:1090    135:250     136:589    
 137:790     138:2100    139:904     140:609     141:892     142:770    
 143:1057    144:880     145:276     146:1306    147:840     148:1718   
 149:1001    150:784     151:1015    152:1095    153:338     154:4412   
 155:884     156:1653    157:1045    158:662     159:1948    160:1606   
 161:936     162:2960    163:830     164:1250    165:1496    166:478    
 167:1411    168:3447    169:898     170:4152    171:613     172:1665   
 173:2219    174:1039    175:981     176:2382    177:4050    178:2565   
 179:1385    180:2136    181:2354    182:2725    183:1101    184:2278   
 185:15335   186:3625    187:2506    188:2951    189:1996    190:8221   
 191:1438    192:10080   193:6753    194:5507    195:4161    196:3008   
 197:1729    198:5936    199:5974    200:7096    201:5114    202:10406  
 203:10186   204:4555    205:3062    206:3263    207:3244    208:3940   
 209:4287    210:3929    211:2022    212:3119    213:2977    214:1119   
 215:55      216:5901    217:2231    218:884     219:609     220:1901   
 221:975     222:979     223:1391   

End of report


More information about the sanog mailing list