[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 30 18:03:45 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 31 Oct, 2020

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

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

BGP routing table entries examined:                              828067
    Prefixes after maximum aggregation (per Origin AS):          316529
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      396695
Total ASes present in the Internet Routing Table:                 69827
    Prefixes per ASN:                                             11.86
Origin-only ASes present in the Internet Routing Table:           60016
Origin ASes announcing only one prefix:                           24837
Transit ASes present in the Internet Routing Table:                9811
Transit-only ASes present in the Internet Routing Table:            298
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 45582)                              27
Prefixes from unregistered ASNs in the Routing Table:               994
    Number of instances of unregistered ASNs:                       995
Number of 32-bit ASNs allocated by the RIRs:                      33990
Number of 32-bit ASNs visible in the Routing Table:               28151
Prefixes from 32-bit ASNs in the Routing Table:                  128583
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            515
Number of addresses announced to Internet:                   2864617216
    Equivalent to 170 /8s, 190 /16s and 151 /24s
    Percentage of available address space announced:               77.4
    Percentage of allocated address space announced:               77.4
    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:      279502

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

Prefixes being announced by APNIC Region ASes:                   216070
    Total APNIC prefixes after maximum aggregation:               63548
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          211683
    Unique aggregates announced from the APNIC address blocks:    86759
APNIC Region origin ASes present in the Internet Routing Table:   10986
    APNIC Prefixes per ASN:                                       19.27
APNIC Region origin ASes announcing only one prefix:               3098
APNIC Region transit ASes present in the Internet Routing Table:   1600
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6108
Number of APNIC addresses announced to Internet:              779017600
    Equivalent to 46 /8s, 110 /16s and 221 /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, 131072-143673
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:                    241495
    Total ARIN prefixes after maximum aggregation:               111528
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           239329
    Unique aggregates announced from the ARIN address blocks:    114696
ARIN Region origin ASes present in the Internet Routing Table:    18672
    ARIN Prefixes per ASN:                                        12.82
ARIN Region origin ASes announcing only one prefix:                6806
ARIN Region transit ASes present in the Internet Routing Table:    1907
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3522
Number of ARIN addresses announced to Internet:              1092438272
    Equivalent to 65 /8s, 29 /16s and 73 /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:                    233584
    Total RIPE prefixes after maximum aggregation:               109954
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           229643
    Unique aggregates announced from the RIPE address blocks:    136727
RIPE Region origin ASes present in the Internet Routing Table:    27476
    RIPE Prefixes per ASN:                                         8.36
RIPE Region origin ASes announcing only one prefix:               11834
RIPE Region transit ASes present in the Internet Routing Table:    3884
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9619
Number of RIPE addresses announced to Internet:               709295488
    Equivalent to 42 /8s, 70 /16s and 253 /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
                       196608-213403
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:                  111722
    Total LACNIC prefixes after maximum aggregation:              26033
    LACNIC Deaggregation factor:                                   4.29
Prefixes being announced from the LACNIC address blocks:         112931
    Unique aggregates announced from the LACNIC address blocks:   47960
LACNIC Region origin ASes present in the Internet Routing Table:  10581
    LACNIC Prefixes per ASN:                                      10.67
LACNIC Region origin ASes announcing only one prefix:              2613
LACNIC Region transit ASes present in the Internet Routing Table:  1964
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8169
Number of LACNIC addresses announced to Internet:             174726144
    Equivalent to 10 /8s, 106 /16s and 28 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + 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:                  24200
    Total AfriNIC prefixes after maximum aggregation:              4724
    AfriNIC Deaggregation factor:                                  5.12
Prefixes being announced from the AfriNIC address blocks:         33966
    Unique aggregates announced from the AfriNIC address blocks:  10123
AfriNIC Region origin ASes present in the Internet Routing Table:  1412
    AfriNIC Prefixes per ASN:                                     24.06
AfriNIC Region origin ASes announcing only one prefix:              485
AfriNIC Region transit ASes present in the Internet Routing Table:  292
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  733
Number of AfriNIC addresses announced to Internet:            108670464
    Equivalent to 6 /8s, 122 /16s and 46 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & 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        5704        775     683  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4753       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3579       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3259       1896      54  VNPT-AS-VN VNPT Corp, VN
  7713        2715        829     621  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2558       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2351      11103     554  KIXS-AS-KR Korea Telecom, KR
  9498        2288        450     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2141        441     190  TATACOMM-AS TATA Communications formerl
  9394        2044       4914      18  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
 11492        4643        308     797  CABLEONE, US
 16509        4405       8767    2025  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3684       2992     188  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3352       1323      81  SHAW, CA
 16625        3108       1643    2238  AKAMAI-AS, US
   209        2510       5059     515  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2458        366     185  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2312       2981    1625  FRONTIER-FRTR, US
 20115        2163       2891     505  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        6208       1636     141  UNI2-AS, ES
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  8551        3446        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3254       3347     203  AKAMAI-ASN1, EU
 12389        2809       2279     879  ROSTELECOM-AS, RU
 47331        2428        418    1824  TTNET, TR
 34984        2194        355     575  TELLCOM-AS, TR
  9009        2172        227    1181  M247, GB
 13188        1611        100      26  TRIOLAN, UA
 61317        1340        156     592  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        8118       3437     599  Uninet S.A. de C.V., MX
 10620        3397        529     535  Telmex Colombia S.A., CO
 11830        2563        369      63  Instituto Costarricense de Electricidad
 13999        1480        451     403  Mega Cable, S.A. de C.V., MX
  7303        1479        952     265  Telecom Argentina S.A., AR
  6503        1470        312     473  Axtel, S.A.B. de C.V., MX
 28573        1336       2257     222  CLARO S.A., BR
  3816        1162        575     168  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1143        379      39  Telefonica del Peru S.A.A., PE
 11664        1012        213     415  Techtel LMDS Comunicaciones Interactiva

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        1572        393      22  LINKdotNET-AS, EG
 36992        1206       1529     131  ETISALAT-MISR, EG
 24835        1116        468      30  RAYA-AS, EG
 36903         918        480      94  MT-MPLS, MA
 29571         708         68      12  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         493         46      15  WANANCHI-, KE
 37342         476         32       1  MOVITEL, MZ
 36935         430        519      37  Vodafone-, EG
 36914         363         82       3  KENET-AS, 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        8118       3437     599  Uninet S.A. de C.V., MX
 12479        6208       1636     141  UNI2-AS, ES
  7545        5704        775     683  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4753       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4643        308     797  CABLEONE, US
 16509        4405       8767    2025  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3684       2992     188  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  7552        3579       1330      21  VIETEL-AS-AP Viettel Group, VN

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        6208         6067  UNI2-AS, ES
  7545        5704         5021  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4753         4680  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4643         3846  CABLEONE, US
 39891        3652         3631  ALJAWWALSTC-AS, SA
  7552        3579         3558  VIETEL-AS-AP Viettel Group, VN
 22773        3684         3496  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        3446         3401  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3352         3271  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
    212434  UNALLOCATED  5.133.88.0/22           206509  KCOM-UK-AS, GB
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     46766  UNALLOCATED  8.44.208.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US
     46505  UNALLOCATED  12.7.131.0/24             7018  ATT-INTERNET4, US
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, 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
23.141.0.0/24        Origin:    395350  UNASSIGNED
                    Transit:     11426  TWC-11426-CAROLINAS, US
23.142.80.0/24       Origin:    397294  UNASSIGNED
                    Transit:    398559  TUNBROKER, US
23.157.0.0/24        Origin:    395101  UNASSIGNED
                    Transit:     33657  CMCS, 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 No. 14, Jala

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        /8:9        /9:13      /10:40      /11:101     /12:291     
/13:578     /14:1173    /15:1936    /16:13471   /17:8280    /18:14037   
/19:25665   /20:41303   /21:50060   /22:102626  /23:86800   /24:480440  
/25:1244    /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        5175        6208  UNI2-AS, ES
 11492        3761        4643  CABLEONE, US
  6327        3150        3352  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
  8551        2906        3446  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2843        3684  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2822        8118  Uninet S.A. de C.V., MX
 39891        2801        3652  ALJAWWALSTC-AS, SA
 30036        2201        2458  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        1995        2312  FRONTIER-FRTR, US

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

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

   1:1669      2:1139      3:33        4:19        5:3603      6:53     
   8:1458      9:1        11:1        12:1766     13:345      14:2369   
  15:72       16:11       17:304      18:90       20:111      23:3990   
  24:2337     25:3        27:2350     31:2130     32:114      34:1      
  35:43       36:1013     37:3480     38:1926     39:436      40:150    
  41:3841     42:612      43:2130     44:226      45:14799    46:3579   
  47:320      49:1565     50:1653     51:106      52:1130     54:220    
  55:704      56:6        57:53       58:1604     59:1163     60:811    
  61:2325     62:2204     63:2015     64:5276     65:2393     66:5100   
  67:2916     68:1180     69:4075     70:1397     71:682      72:3005   
  74:2538     75:1459     76:684      77:1983     78:2126     79:2684   
  80:2060     81:1619     82:1317     83:1171     84:1256     85:2791   
  86:623      87:1790     88:1457     89:2886     90:384      91:7147   
  92:1595     93:2504     94:2839     95:3629     96:1234     97:341    
  98:950      99:981     100:88      101:1021    102:1165    103:24750  
 104:3597    105:375     106:893     107:2112    108:693     109:3714   
 110:1986    111:2352    112:1673    113:1513    114:1527    115:1842   
 116:1846    117:2115    118:2200    119:1776    120:872     121:1027   
 122:2305    123:2078    124:1619    125:2146    128:1357    129:1239   
 130:734     131:1915    132:754     133:312     134:1363    135:330    
 136:655     137:894     138:2314    139:1128    140:756     141:1102   
 142:986     143:1232    144:1118    145:326     146:1367    147:1218   
 148:2139    149:1211    150:753     151:1334    152:1566    153:437    
 154:3321    155:1223    156:2471    157:1115    158:893     159:2018   
 160:1996    161:1075    162:3179    163:908     164:1526    165:1308   
 166:594     167:1710    168:3577    169:619     170:4275    171:770    
 172:2003    173:2912    174:952     175:1051    176:2805    177:4312   
 178:2762    179:1893    180:2263    181:2560    182:3166    183:1463   
 184:2441    185:17197   186:3950    187:3069    188:3267    189:2671   
 190:9126    191:1437    192:10563   193:7781    194:6334    195:4570   
 196:3163    197:2215    198:6031    199:5911    200:7311    201:5286   
 202:10541   203:10207   204:4641    205:3070    206:3237    207:3276   
 208:3988    209:4513    210:4191    211:2071    212:3515    213:3287   
 214:1179    215:57      216:6109    217:2462    218:852     219:624    
 220:2059    221:922     222:970     223:1646   

End of report


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