[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 11 Déc 18:03:32 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 12 Dec, 2020

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

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

BGP routing table entries examined:                              833024
    Prefixes after maximum aggregation (per Origin AS):          319019
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      399101
Total ASes present in the Internet Routing Table:                 70094
    Prefixes per ASN:                                             11.88
Origin-only ASes present in the Internet Routing Table:           60270
Origin ASes announcing only one prefix:                           24923
Transit ASes present in the Internet Routing Table:                9824
Transit-only ASes present in the Internet Routing Table:            286
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 22394)                              36
Prefixes from unregistered ASNs in the Routing Table:              1079
    Number of instances of unregistered ASNs:                      1080
Number of 32-bit ASNs allocated by the RIRs:                      34384
Number of 32-bit ASNs visible in the Routing Table:               28526
Prefixes from 32-bit ASNs in the Routing Table:                  130841
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            531
Number of addresses announced to Internet:                   2864277120
    Equivalent to 170 /8s, 185 /16s and 102 /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:      283782

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

Prefixes being announced by APNIC Region ASes:                   217228
    Total APNIC prefixes after maximum aggregation:               64069
    APNIC Deaggregation factor:                                    3.39
Prefixes being announced from the APNIC address blocks:          213269
    Unique aggregates announced from the APNIC address blocks:    87397
APNIC Region origin ASes present in the Internet Routing Table:   11101
    APNIC Prefixes per ASN:                                       19.21
APNIC Region origin ASes announcing only one prefix:               3153
APNIC Region transit ASes present in the Internet Routing Table:   1603
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6224
Number of APNIC addresses announced to Internet:              778323968
    Equivalent to 46 /8s, 100 /16s and 72 /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:                    240688
    Total ARIN prefixes after maximum aggregation:               111288
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           240949
    Unique aggregates announced from the ARIN address blocks:    115360
ARIN Region origin ASes present in the Internet Routing Table:    18690
    ARIN Prefixes per ASN:                                        12.89
ARIN Region origin ASes announcing only one prefix:                6809
ARIN Region transit ASes present in the Internet Routing Table:    1913
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          40
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3604
Number of ARIN addresses announced to Internet:              1093117952
    Equivalent to 65 /8s, 39 /16s and 168 /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, 393216-401308
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:                    237159
    Total RIPE prefixes after maximum aggregation:               111900
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           233076
    Unique aggregates announced from the RIPE address blocks:    137705
RIPE Region origin ASes present in the Internet Routing Table:    27564
    RIPE Prefixes per ASN:                                         8.46
RIPE Region origin ASes announcing only one prefix:               11851
RIPE Region transit ASes present in the Internet Routing Table:    3893
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9735
Number of RIPE addresses announced to Internet:               709722752
    Equivalent to 42 /8s, 77 /16s and 130 /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:                  112113
    Total LACNIC prefixes after maximum aggregation:              26185
    LACNIC Deaggregation factor:                                   4.28
Prefixes being announced from the LACNIC address blocks:         113225
    Unique aggregates announced from the LACNIC address blocks:   47917
LACNIC Region origin ASes present in the Internet Routing Table:  10626
    LACNIC Prefixes per ASN:                                      10.66
LACNIC Region origin ASes announcing only one prefix:              2626
LACNIC Region transit ASes present in the Internet Routing Table:  1967
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        33
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8216
Number of LACNIC addresses announced to Internet:             174113024
    Equivalent to 10 /8s, 96 /16s and 193 /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:                  24755
    Total AfriNIC prefixes after maximum aggregation:              4791
    AfriNIC Deaggregation factor:                                  5.17
Prefixes being announced from the AfriNIC address blocks:         31974
    Unique aggregates announced from the AfriNIC address blocks:  10289
AfriNIC Region origin ASes present in the Internet Routing Table:  1420
    AfriNIC Prefixes per ASN:                                     22.52
AfriNIC Region origin ASes announcing only one prefix:              483
AfriNIC Region transit ASes present in the Internet Routing Table:  287
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:  747
Number of AfriNIC addresses announced to Internet:            108557312
    Equivalent to 6 /8s, 120 /16s and 116 /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        5676        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4755       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3577       1330      21  VIETEL-AS-AP Viettel Group, VN
  7713        3227        952     519  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2842       1896      55  VNPT-AS-VN VNPT Corp, VN
  9808        2574       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2356      11104     565  KIXS-AS-KR Korea Telecom, KR
  9498        2297        466     232  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2133        441     189  TATACOMM-AS TATA Communications formerl
 45090        2064       1045      63  CNNIC-TENCENT-NET-AP Shenzhen Tencent C

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        4755        315     695  CABLEONE, US
 16509        4501       9066    2085  AMAZON-02, US
  7155        4019        264      32  VIASAT-SP-BACKBONE, US
 22773        3739       2994     196  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3357       1319      83  SHAW, CA
 16625        3124       1641    2247  AKAMAI-AS, US
   209        2525       5059     511  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2487        370     113  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2336       2984    1643  FRONTIER-FRTR, US
 20115        2165       2899     504  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
 47331        6502        900    3642  TTNET, TR
 12479        6226       1667     141  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3330       3347     200  AKAMAI-ASN1, EU
  8551        3237        379      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2881       2282     892  ROSTELECOM-AS, RU
  9009        2235        231    1219  M247, GB
 34984        2167        351     576  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1449        853     541  TCI, IR

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        8187       3442     603  Uninet S.A. de C.V., MX
 10620        3396        526     550  Telmex Colombia S.A., CO
 11830        2565        369      63  Instituto Costarricense de Electricidad
 13999        1561        430     411  Mega Cable, S.A. de C.V., MX
  6503        1444        311     475  Axtel, S.A.B. de C.V., MX
  7303        1435        909     262  Telecom Argentina S.A., AR
 28573        1371       2259     223  CLARO S.A., BR
  6147        1147        379      39  Telefonica del Peru S.A.A., PE
  3816        1113        537     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664         999        212     418  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        1567        393      22  LINKdotNET-AS, EG
 24835        1288        480      25  RAYA-AS, EG
 36992        1206       1529     133  ETISALAT-MISR, EG
 36903         950        496      96  MT-MPLS, MA
 29571         709         68      12  ORANGE-COTE-IVOIRE, CI
  6713         533       1863      34  IAM-AS, MA
 15399         485         46      17  WANANCHI-, KE
 37342         478         32       1  MOVITEL, MZ
 36935         464        522      40  Vodafone-, EG
 23889         450        232      16  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        8187       3442     603  Uninet S.A. de C.V., MX
 47331        6502        900    3642  TTNET, TR
 12479        6226       1667     141  UNI2-AS, ES
  7545        5676        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4755       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4755        315     695  CABLEONE, US
 16509        4501       9066    2085  AMAZON-02, US
  7155        4019        264      32  VIASAT-SP-BACKBONE, US
 22773        3739       2994     196  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3577       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        6226         6085  UNI2-AS, ES
  7545        5676         5015  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4755         4682  ERX-CERNET-BKB China Education and Research Net
 11492        4755         4060  CABLEONE, US
  7155        4019         3987  VIASAT-SP-BACKBONE, US
  7552        3577         3556  VIETEL-AS-AP Viettel Group, VN
 22773        3739         3543  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3357         3274  SHAW, CA
  8551        3237         3194  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     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
    393489  UNALLOCATED  12.7.109.0/24             7018  ATT-INTERNET4, 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
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
27.126.156.0/23      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        /8:8        /9:13      /10:40      /11:101     /12:292     
/13:579     /14:1175    /15:1932    /16:13469   /17:8249    /18:13675   
/19:25588   /20:41340   /21:50275   /22:103262  /23:87738   /24:484046  
/25:1242    /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
 47331        5724        6502  TTNET, TR
 12479        5201        6226  UNI2-AS, ES
 11492        3803        4755  CABLEONE, US
  6327        3152        3357  SHAW, CA
  7155        3108        4019  VIASAT-SP-BACKBONE, US
  8151        2892        8187  Uninet S.A. de C.V., MX
 22773        2867        3739  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8551        2699        3237  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2225        2487  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1879      2:1143      3:35        4:18        5:3408      6:53     
   8:1484      9:1        11:1        12:1759     13:351      14:2397   
  15:72       16:13       17:302      18:93       20:111      23:4139   
  24:2359     25:3        27:2340     31:2162     32:112      34:1      
  35:35       36:1128     37:3507     38:2000     39:476      40:150    
  41:3866     42:616      43:2111     44:236      45:14651    46:3618   
  47:322      49:1607     50:1680     51:90       52:1129     54:213    
  55:781      56:6        57:56       58:1691     59:1144     60:817    
  61:2305     62:2197     63:2016     64:5226     65:2380     66:5121   
  67:2951     68:1170     69:4101     70:1400     71:685      72:3090   
  74:2545     75:1457     76:687      77:1973     78:3178     79:2493   
  80:1917     81:1630     82:1297     83:1105     84:1251     85:3100   
  86:619      87:1784     88:2428     89:2868     90:402      91:7167   
  92:1590     93:2549     94:2910     95:4162     96:1228     97:341    
  98:968      99:976     100:90      101:1048    102:1211    103:24992  
 104:3616    105:390     106:775     107:2172    108:686     109:3743   
 110:2001    111:2346    112:1652    113:1533    114:1415    115:1853   
 116:1862    117:2118    118:2276    119:1863    120:939     121:1040   
 122:2295    123:2126    124:1631    125:2133    128:1384    129:1258   
 130:770     131:1996    132:746     133:311     134:1390    135:331    
 136:684     137:899     138:2293    139:1157    140:737     141:1161   
 142:1041    143:1249    144:1210    145:334     146:1361    147:1212   
 148:2170    149:1262    150:758     151:1201    152:1603    153:446    
 154:2298    155:1261    156:1353    157:1133    158:912     159:2040   
 160:2039    161:1078    162:3202    163:920     164:1422    165:1314   
 166:600     167:1719    168:3627    169:630     170:4359    171:743    
 172:2007    173:2923    174:966     175:1060    176:2910    177:4440   
 178:2785    179:1896    180:2280    181:2578    182:3160    183:1516   
 184:2403    185:17553   186:4025    187:3053    188:3298    189:2728   
 190:9091    191:1400    192:10585   193:7846    194:6379    195:4581   
 196:3109    197:2297    198:6010    199:5940    200:7310    201:5269   
 202:10566   203:10142   204:4633    205:3096    206:3295    207:3311   
 208:3986    209:4608    210:4193    211:2095    212:3587    213:3193   
 214:1189    215:61      216:6143    217:2472    218:897     219:637    
 220:2086    221:929     222:975     223:1701   

End of report


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