[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 24 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 25 Apr, 2020

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

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

BGP routing table entries examined:                              807324
    Prefixes after maximum aggregation (per Origin AS):          306952
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      394895
Total ASes present in the Internet Routing Table:                 67870
    Prefixes per ASN:                                             11.90
Origin-only ASes present in the Internet Routing Table:           58291
Origin ASes announcing only one prefix:                           24322
Transit ASes present in the Internet Routing Table:                9579
Transit-only ASes present in the Internet Routing Table:            301
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:              1121
    Number of instances of unregistered ASNs:                      1124
Number of 32-bit ASNs allocated by the RIRs:                      31403
Number of 32-bit ASNs visible in the Routing Table:               25963
Prefixes from 32-bit ASNs in the Routing Table:                  119709
Number of bogon 32-bit ASNs visible in the Routing Table:            21
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            745
Number of addresses announced to Internet:                   2856567040
    Equivalent to 170 /8s, 67 /16s and 193 /24s
    Percentage of available address space announced:               77.2
    Percentage of allocated address space announced:               77.2
    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:      272367

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

Prefixes being announced by APNIC Region ASes:                   211915
    Total APNIC prefixes after maximum aggregation:               62126
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          205110
    Unique aggregates announced from the APNIC address blocks:    86548
APNIC Region origin ASes present in the Internet Routing Table:   10538
    APNIC Prefixes per ASN:                                       19.46
APNIC Region origin ASes announcing only one prefix:               2941
APNIC Region transit ASes present in the Internet Routing Table:   1576
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5605
Number of APNIC addresses announced to Internet:              767134848
    Equivalent to 45 /8s, 185 /16s and 140 /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:                    236391
    Total ARIN prefixes after maximum aggregation:               108750
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           233827
    Unique aggregates announced from the ARIN address blocks:    118675
ARIN Region origin ASes present in the Internet Routing Table:    18444
    ARIN Prefixes per ASN:                                        12.68
ARIN Region origin ASes announcing only one prefix:                6722
ARIN Region transit ASes present in the Internet Routing Table:    1918
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3208
Number of ARIN addresses announced to Internet:              1080555776
    Equivalent to 64 /8s, 103 /16s and 249 /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:                    229590
    Total RIPE prefixes after maximum aggregation:               106028
    RIPE Deaggregation factor:                                     2.17
Prefixes being announced from the RIPE address blocks:           226295
    Unique aggregates announced from the RIPE address blocks:    132635
RIPE Region origin ASes present in the Internet Routing Table:    27046
    RIPE Prefixes per ASN:                                         8.37
RIPE Region origin ASes announcing only one prefix:               11735
RIPE Region transit ASes present in the Internet Routing Table:    3836
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9128
Number of RIPE addresses announced to Internet:               724445312
    Equivalent to 43 /8s, 46 /16s and 40 /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:                  105935
    Total LACNIC prefixes after maximum aggregation:              24598
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         107257
    Unique aggregates announced from the LACNIC address blocks:   46358
LACNIC Region origin ASes present in the Internet Routing Table:   9774
    LACNIC Prefixes per ASN:                                      10.97
LACNIC Region origin ASes announcing only one prefix:              2436
LACNIC Region transit ASes present in the Internet Routing Table:  1839
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        45
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7344
Number of LACNIC addresses announced to Internet:             174594816
    Equivalent to 10 /8s, 104 /16s and 27 /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:                  22371
    Total AfriNIC prefixes after maximum aggregation:              4717
    AfriNIC Deaggregation factor:                                  4.74
Prefixes being announced from the AfriNIC address blocks:         34090
    Unique aggregates announced from the AfriNIC address blocks:  10061
AfriNIC Region origin ASes present in the Internet Routing Table:  1388
    AfriNIC Prefixes per ASN:                                     24.56
AfriNIC Region origin ASes announcing only one prefix:              488
AfriNIC Region transit ASes present in the Internet Routing Table:  269
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  678
Number of AfriNIC addresses announced to Internet:            109410304
    Equivalent to 6 /8s, 133 /16s and 120 /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        5430        684     632  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4751       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3378       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        2806       1763     157  VNPT-AS-VN VNPT Corp, VN
  7713        2713        831     505  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2552       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2288      11102     561  KIXS-AS-KR Korea Telecom, KR
  9498        2263        434     221  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2134        441     192  TATACOMM-AS TATA Communications formerl
  9394        2040       4914      20  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        4263        285     652  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3998       7877    1773  AMAZON-02, US
 22773        3533       2968     149  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3364       1324      92  SHAW, CA
 16625        3052       1592    2184  AKAMAI-AS, US
   209        2420       5077     538  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2375        362      94  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2300       2981    1621  FRONTIER-FRTR, US
 26484        2194        137     175  IKGUL-26484, 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        5772       1603     138  UNI2-AS, ES
 31334        4759        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3202        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2969        456    2027  AKAMAI-ASN1, EU
 12389        2497       2251     725  ROSTELECOM-AS, RU
  9009        2170        229    1177  M247, GB
 34984        2056        350     561  TELLCOM-AS, TR
  9121        1890       1691      18  TTNET, TR
 13188        1606        100      36  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        6497       3316     600  Uninet S.A. de C.V., MX
 10620        3360        530     517  Telmex Colombia S.A., CO
 11830        2671        369      63  Instituto Costarricense de Electricidad
  6503        1687        327     387  Axtel, S.A.B. de C.V., MX
  7303        1552       1031     262  Telecom Argentina S.A., AR
 28573        1371       2242     203  CLARO S.A., BR
 13999        1327        490     326  Mega Cable, S.A. de C.V., MX
  6147        1141        379      39  Telefonica del Peru S.A.A., PE
  3816        1096        570     139  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         956        112      70  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        1467        393      22  LINKdotNET-AS, EG
 24835        1109        574      25  RAYA-AS, EG
 36992        1087       1539      76  ETISALAT-MISR, EG
 36903         890        467      88  MT-MPLS, MA
 29571         600         68      12  ORANGE-COTE-IVOIRE, CI
  6713         566       1863      34  IAM-AS, MA
 36935         410        522      44  Vodafone-, EG
 37342         404         32       1  MOVITEL, MZ
 23889         368        231      15  MauritiusTelecom, MU
 15399         349         45      10  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        6497       3316     600  Uninet S.A. de C.V., MX
 12479        5772       1603     138  UNI2-AS, ES
  7545        5430        684     632  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4759        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4751       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4263        285     652  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3998       7877    1773  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3533       2968     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        5772         5634  UNI2-AS, ES
  7545        5430         4798  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4759         4746  KABELDEUTSCHLAND-AS, DE
  4538        4751         4678  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
 11492        4263         3611  CABLEONE, US
 22773        3533         3384  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3378         3356  VIETEL-AS-AP Viettel Group, VN
  6327        3364         3272  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
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
     26584  UNALLOCATED  8.42.62.0/23               209  CENTURYLINK-US-LEGACY-QWEST,
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, 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
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
27.126.158.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY
41.67.192.0/18       Origin:     15964  CAMNET-AS, CM
                    Transit:     37662  WIOCC-AS, MU

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      /11:99      /12:286     
/13:578     /14:1166    /15:1917    /16:13368   /17:8202    /18:13594   
/19:25854   /20:40481   /21:47970   /22:100009  /23:82638   /24:469820  
/25:1283    /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        4775        5772  UNI2-AS, ES
 31334        4604        4759  KABELDEUTSCHLAND-AS, DE
 11492        3341        4263  CABLEONE, US
  6327        3152        3364  SHAW, CA
  7155        3125        4034  VIASAT-SP-BACKBONE, US
 39891        2801        3651  ALJAWWALSTC-AS, SA
 22773        2751        3533  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2660        3202  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2216        6497  Uninet S.A. de C.V., MX
 30036        2122        2375  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1586      2:1152      3:30        4:19        5:3346      6:51     
   8:1406      9:1        11:1        12:1794     13:506      14:2280   
  15:75       16:9        17:299      18:81       20:83       23:3505   
  24:2267     25:2        27:2565     31:3067     32:103      34:3      
  35:41       36:930      37:3299     38:1953     39:389      40:126    
  41:3598     42:693      43:2114     44:203      45:14112    46:3708   
  47:286      49:1449     50:1411     51:91       52:1121     54:269    
  55:673      56:6        57:52       58:1769     59:1176     60:726    
  61:2249     62:2229     63:1962     64:5090     65:2297     66:4908   
  67:2848     68:1228     69:3825     70:1429     71:679      72:2882   
  74:2598     75:1434     76:682      77:2815     78:1870     79:2424   
  80:1927     81:1623     82:1302     83:1159     84:1204     85:2547   
  86:552      87:1705     88:1141     89:2738     90:317      91:7908   
  92:1504     93:2463     94:2673     95:3954     96:1117     97:335    
  98:938      99:973     100:87      101:974     102:896     103:23584  
 104:3437    105:378     106:834     107:1991    108:702     109:3669   
 110:1811    111:1984    112:1601    113:1401    114:1549    115:1822   
 116:1798    117:2095    118:2163    119:1737    120:820     121:1050   
 122:2438    123:1994    124:1556    125:2040    128:1347    129:943    
 130:634     131:1844    132:758     133:300     134:1304    135:295    
 136:614     137:852     138:2172    139:991     140:642     141:940    
 142:904     143:1207    144:972     145:330     146:1492    147:1036   
 148:2128    149:1179    150:816     151:1295    152:1494    153:379    
 154:4738    155:1044    156:3383    157:1099    158:831     159:1959   
 160:1940    161:1033    162:3054    163:858     164:1444    165:1284   
 166:532     167:1625    168:3434    169:526     170:4239    171:773    
 172:1925    173:2501    174:1012    175:1016    176:2627    177:4217   
 178:3051    179:1478    180:2320    181:2529    182:3086    183:1132   
 184:2411    185:16406   186:3792    187:2716    188:4093    189:2260   
 190:8624    191:1420    192:10347   193:7461    194:6119    195:4377   
 196:3306    197:1808    198:6100    199:5978    200:7225    201:5224   
 202:10500   203:10161   204:4521    205:3104    206:3249    207:3292   
 208:4034    209:4409    210:4016    211:2002    212:3323    213:3127   
 214:1166    215:61      216:5963    217:2401    218:878     219:612    
 220:2039    221:896     222:1009    223:1466   

End of report


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