[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 6 18:03:34 UTC 2020


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 07 Mar, 2020

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

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

BGP routing table entries examined:                              798439
    Prefixes after maximum aggregation (per Origin AS):          304010
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      390576
Total ASes present in the Internet Routing Table:                 67305
    Prefixes per ASN:                                             11.86
Origin-only ASes present in the Internet Routing Table:           57821
Origin ASes announcing only one prefix:                           24237
Transit ASes present in the Internet Routing Table:                9484
Transit-only ASes present in the Internet Routing Table:            279
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      36
    Max AS path prepend of ASN (206156)                              26
Prefixes from unregistered ASNs in the Routing Table:              1180
    Number of instances of unregistered ASNs:                      1180
Number of 32-bit ASNs allocated by the RIRs:                      30822
Number of 32-bit ASNs visible in the Routing Table:               25406
Prefixes from 32-bit ASNs in the Routing Table:                  116864
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:           1111
Number of addresses announced to Internet:                   2852393344
    Equivalent to 170 /8s, 4 /16s and 17 /24s
    Percentage of available address space announced:               77.0
    Percentage of allocated address space announced:               77.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:      268676

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

Prefixes being announced by APNIC Region ASes:                   210757
    Total APNIC prefixes after maximum aggregation:               61574
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          203893
    Unique aggregates announced from the APNIC address blocks:    85240
APNIC Region origin ASes present in the Internet Routing Table:   10411
    APNIC Prefixes per ASN:                                       19.58
APNIC Region origin ASes announcing only one prefix:               2874
APNIC Region transit ASes present in the Internet Routing Table:   1547
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:   5470
Number of APNIC addresses announced to Internet:              766449152
    Equivalent to 45 /8s, 175 /16s and 22 /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:                    234062
    Total ARIN prefixes after maximum aggregation:               107826
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           231576
    Unique aggregates announced from the ARIN address blocks:    117409
ARIN Region origin ASes present in the Internet Routing Table:    18422
    ARIN Prefixes per ASN:                                        12.57
ARIN Region origin ASes announcing only one prefix:                6759
ARIN Region transit ASes present in the Internet Routing Table:    1911
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3185
Number of ARIN addresses announced to Internet:              1078915840
    Equivalent to 64 /8s, 78 /16s and 243 /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:                    226463
    Total RIPE prefixes after maximum aggregation:               105226
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           223339
    Unique aggregates announced from the RIPE address blocks:    131226
RIPE Region origin ASes present in the Internet Routing Table:    26917
    RIPE Prefixes per ASN:                                         8.30
RIPE Region origin ASes announcing only one prefix:               11725
RIPE Region transit ASes present in the Internet Routing Table:    3824
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8981
Number of RIPE addresses announced to Internet:               724228736
    Equivalent to 43 /8s, 42 /16s and 218 /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:                  104164
    Total LACNIC prefixes after maximum aggregation:              24144
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         105465
    Unique aggregates announced from the LACNIC address blocks:   45705
LACNIC Region origin ASes present in the Internet Routing Table:   9529
    LACNIC Prefixes per ASN:                                      11.07
LACNIC Region origin ASes announcing only one prefix:              2395
LACNIC Region transit ASes present in the Internet Routing Table:  1787
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        36
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7101
Number of LACNIC addresses announced to Internet:             174446336
    Equivalent to 10 /8s, 101 /16s and 215 /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:                  21812
    Total AfriNIC prefixes after maximum aggregation:              4505
    AfriNIC Deaggregation factor:                                  4.84
Prefixes being announced from the AfriNIC address blocks:         33055
    Unique aggregates announced from the AfriNIC address blocks:  10017
AfriNIC Region origin ASes present in the Internet Routing Table:  1377
    AfriNIC Prefixes per ASN:                                     24.01
AfriNIC Region origin ASes announcing only one prefix:              484
AfriNIC Region transit ASes present in the Internet Routing Table:  271
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       22
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  669
Number of AfriNIC addresses announced to Internet:            107768320
    Equivalent to 6 /8s, 108 /16s and 106 /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        5334        670     616  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4622       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3342       1331      24  VIETEL-AS-AP Viettel Group, VN
 45899        3137       1798     105  VNPT-AS-VN VNPT Corp, VN
  7713        2700        831     500  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2594       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2288      11102     561  KIXS-AS-KR Korea Telecom, KR
  9498        2250        434     222  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2138        441     193  TATACOMM-AS TATA Communications formerl
  9394        2080       4898      24  CTTNET China TieTong Telecommunications

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        4034        280      28  VIASAT-SP-BACKBONE, US
 11492        4000        266     666  CABLEONE, US
 16509        3875       7816    1712  AMAZON-02, US
 22773        3535       2970     149  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3373       1324      92  SHAW, CA
 16625        2991       1570    2140  AKAMAI-AS, US
   209        2386       5076     531  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2310        358     158  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2291       2941    1632  FRONTIER-FRTR, US
 20115        2142       2795     512  CHARTER-20115, 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        5939       1599     131  UNI2-AS, ES
 31334        4099        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3776        203      20  ALJAWWALSTC-AS, SA
  8551        3293        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2916        466    2002  AKAMAI-ASN1, US
 12389        2485       2250     727  ROSTELECOM-AS, RU
 34984        2095        350     560  TELLCOM-AS, TR
  9009        2060        216    1110  M247, GB
  9121        1917       1691      18  TTNET, TR
 13188        1604        100      47  TRIOLAN, UA

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        6291       3303     600  Uninet S.A. de C.V., MX
 10620        3369        533     453  Telmex Colombia S.A., CO
 11830        2671        369      63  Instituto Costarricense de Electricidad
  6503        1674        327     389  Axtel, S.A.B. de C.V., MX
  7303        1552       1030     264  Telecom Argentina S.A., AR
 28573        1366       2243     190  CLARO S.A., BR
 13999        1240        505     291  Mega Cable, S.A. de C.V., MX
  6147        1121        379      39  Telefonica del Peru S.A.A., PE
  3816        1087        564     138  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         955        112      69  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        1501        393      22  LINKdotNET-AS, EG
 24835        1100        570      24  RAYA-AS, EG
 36992        1077       1535      74  ETISALAT-MISR, EG
 36903         875        452      97  MT-MPLS, MA
  6713         598       1863      34  IAM-AS, MA
 29571         574         68      11  ORANGE-COTE-IVOIRE, CI
 37342         482         32       1  MOVITEL, MZ
 36935         385        522      40  Vodafone-, EG
 15399         374         45      10  WANANCHI-, KE
 23889         373        231      15  MauritiusTelecom, MU

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        6291       3303     600  Uninet S.A. de C.V., MX
 12479        5939       1599     131  UNI2-AS, ES
  7545        5334        670     616  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4622       4192      73  ERX-CERNET-BKB China Education and Rese
 31334        4099        484      13  KABELDEUTSCHLAND-AS, DE
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 11492        4000        266     666  CABLEONE, US
 16509        3875       7816    1712  AMAZON-02, US
 39891        3776        203      20  ALJAWWALSTC-AS, SA
 22773        3535       2970     149  ASN-CXA-ALL-CCI-22773-RDC, US

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
 12479        5939         5808  UNI2-AS, ES
  7545        5334         4718  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4622         4549  ERX-CERNET-BKB China Education and Research Net
 31334        4099         4086  KABELDEUTSCHLAND-AS, DE
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3776         3756  ALJAWWALSTC-AS, SA
 22773        3535         3386  ASN-CXA-ALL-CCI-22773-RDC, US
 11492        4000         3334  CABLEONE, US
  7552        3342         3318  VIETEL-AS-AP Viettel Group, VN
  6327        3373         3281  SHAW, CA

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     27205  UNALLOCATED  8.38.16.0/21              6461  ZAYO-6461, US
     27205  UNALLOCATED  8.38.16.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     27205  UNALLOCATED  8.38.20.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US

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

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

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

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

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

Unassigned Network     ASN Information  AS Name
23.136.224.0/24      Origin:     15206  UNASSIGNED
                    Transit:       174  COGENT-174, US
23.137.192.0/24      Origin:     31798  CANAD-86-31798, CA
                    Transit:       174  COGENT-174, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
27.126.156.0/22      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY

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      /10:38      /11:98      /12:285     
/13:579     /14:1158    /15:1911    /16:13371   /17:8133    /18:13829   
/19:25725   /20:40324   /21:47571   /22:98701   /23:81681   /24:463722  
/25:1292    /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        4932        5939  UNI2-AS, ES
 31334        3944        4099  KABELDEUTSCHLAND-AS, DE
  6327        3162        3373  SHAW, CA
 11492        3130        4000  CABLEONE, US
  7155        3125        4034  VIASAT-SP-BACKBONE, US
 39891        2946        3776  ALJAWWALSTC-AS, SA
  8551        2752        3293  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2751        3535  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2098        6291  Uninet S.A. de C.V., MX
 30036        2057        2310  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1546      2:1135      3:30        4:19        5:3309      6:48     
   8:1385      9:1        12:1786     13:494      14:2241     15:75     
  16:9        17:284      18:79       20:58       23:3380     24:2633   
  25:4        27:2507     31:3043     32:103      35:40       36:934    
  37:3285     38:1921     39:323      40:132      41:3379     42:700    
  43:2098     44:201      45:13797    46:3674     47:278      49:1427   
  50:1213     51:87       52:1129     54:271      55:601      56:6      
  57:48       58:1869     59:1133     60:703      61:2216     62:2196   
  63:1945     64:5060     65:2309     66:4848     67:2845     68:1208   
  69:3787     70:1428     71:675      72:2783     74:2631     75:1437   
  76:669      77:2579     78:1958     79:2402     80:1851     81:1571   
  82:1259     83:1125     84:1220     85:2508     86:551      87:1735   
  88:1089     89:2693     90:315      91:7564     92:1486     93:2456   
  94:2667     95:3727     96:1008     97:337      98:967      99:961    
 100:85      101:1090    102:838     103:23317   104:3409    105:394    
 106:838     107:1966    108:704     109:3774    110:1790    111:1988   
 112:1573    113:1395    114:1534    115:1840    116:1779    117:2042   
 118:2112    119:1698    120:849     121:1041    122:2381    123:1897   
 124:1557    125:2031    128:1340    129:915     130:622     131:1824   
 132:758     133:299     134:1232    135:275     136:602     137:844    
 138:2171    139:988     140:596     141:913     142:885     143:1187   
 144:965     145:329     146:1472    147:1016    148:2061    149:1159   
 150:817     151:1281    152:1479    153:372     154:4697    155:902    
 156:3335    157:1087    158:771     159:1941    160:1859    161:1020   
 162:3030    163:789     164:1445    165:1251    166:544     167:1501   
 168:3693    169:495     170:4220    171:757     172:1885    173:2385   
 174:1032    175:1016    176:2661    177:4212    178:2990    179:1503   
 180:2166    181:2448    182:2848    183:1113    184:2405    185:16176  
 186:3756    187:2633    188:4070    189:2140    190:8327    191:1464   
 192:10246   193:7401    194:6037    195:4307    196:3429    197:1910   
 198:6111    199:5911    200:7182    201:5164    202:10443   203:10123  
 204:4543    205:3093    206:3255    207:3288    208:4025    209:4367   
 210:4000    211:1987    212:3199    213:3017    214:1176    215:54     
 216:5893    217:2336    218:872     219:604     220:1992    221:916    
 222:999     223:1467   

End of report


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