[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 28 18:03:28 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 29 Feb, 2020

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

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

BGP routing table entries examined:                              797725
    Prefixes after maximum aggregation (per Origin AS):          303605
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      389949
Total ASes present in the Internet Routing Table:                 67220
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           57747
Origin ASes announcing only one prefix:                           24242
Transit ASes present in the Internet Routing Table:                9473
Transit-only ASes present in the Internet Routing Table:            285
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      34
    Max AS path prepend of ASN (206156)                              26
Prefixes from unregistered ASNs in the Routing Table:              1179
    Number of instances of unregistered ASNs:                      1179
Number of 32-bit ASNs allocated by the RIRs:                      30732
Number of 32-bit ASNs visible in the Routing Table:               25319
Prefixes from 32-bit ASNs in the Routing Table:                  116316
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:           1110
Number of addresses announced to Internet:                   2854110848
    Equivalent to 170 /8s, 30 /16s and 70 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.4
Total number of prefixes smaller than registry allocations:      268248

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

Prefixes being announced by APNIC Region ASes:                   210878
    Total APNIC prefixes after maximum aggregation:               61543
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          204131
    Unique aggregates announced from the APNIC address blocks:    85102
APNIC Region origin ASes present in the Internet Routing Table:   10367
    APNIC Prefixes per ASN:                                       19.69
APNIC Region origin ASes announcing only one prefix:               2848
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:   5434
Number of APNIC addresses announced to Internet:              768208896
    Equivalent to 45 /8s, 201 /16s and 240 /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:                    234135
    Total ARIN prefixes after maximum aggregation:               107778
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           231796
    Unique aggregates announced from the ARIN address blocks:    117534
ARIN Region origin ASes present in the Internet Routing Table:    18411
    ARIN Prefixes per ASN:                                        12.59
ARIN Region origin ASes announcing only one prefix:                6757
ARIN Region transit ASes present in the Internet Routing Table:    1907
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3175
Number of ARIN addresses announced to Internet:              1079092736
    Equivalent to 64 /8s, 81 /16s and 166 /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:                    226124
    Total RIPE prefixes after maximum aggregation:               104938
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           222843
    Unique aggregates announced from the RIPE address blocks:    130746
RIPE Region origin ASes present in the Internet Routing Table:    26900
    RIPE Prefixes per ASN:                                         8.28
RIPE Region origin ASes announcing only one prefix:               11720
RIPE Region transit ASes present in the Internet Routing Table:    3821
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:    8962
Number of RIPE addresses announced to Internet:               724185472
    Equivalent to 43 /8s, 42 /16s and 49 /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:                  103621
    Total LACNIC prefixes after maximum aggregation:              24117
    LACNIC Deaggregation factor:                                   4.30
Prefixes being announced from the LACNIC address blocks:         104886
    Unique aggregates announced from the LACNIC address blocks:   45624
LACNIC Region origin ASes present in the Internet Routing Table:   9509
    LACNIC Prefixes per ASN:                                      11.03
LACNIC Region origin ASes announcing only one prefix:              2433
LACNIC Region transit ASes present in the Internet Routing Table:  1785
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        31
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7081
Number of LACNIC addresses announced to Internet:             174283776
    Equivalent to 10 /8s, 99 /16s and 92 /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:                  21787
    Total AfriNIC prefixes after maximum aggregation:              4495
    AfriNIC Deaggregation factor:                                  4.85
Prefixes being announced from the AfriNIC address blocks:         32959
    Unique aggregates announced from the AfriNIC address blocks:   9958
AfriNIC Region origin ASes present in the Internet Routing Table:  1376
    AfriNIC Prefixes per ASN:                                     23.95
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:  667
Number of AfriNIC addresses announced to Internet:            107771904
    Equivalent to 6 /8s, 108 /16s and 120 /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        5305        666     617  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4623       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3332       1331      24  VIETEL-AS-AP Viettel Group, VN
 45899        3135       1797     104  VNPT-AS-VN VNPT Corp, VN
  7713        2701        831     493  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2624       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2288      11102     561  KIXS-AS-KR Korea Telecom, KR
  9498        2244        434     220  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2140        441     193  TATACOMM-AS TATA Communications formerl
  9394        2077       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        3998        266     665  CABLEONE, US
 16509        3868       7816    1701  AMAZON-02, US
 22773        3533       2971     151  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3376       1324      92  SHAW, CA
 16625        2991       1570    2140  AKAMAI-AS, US
   209        2372       5075     531  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2311        360     114  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2290       2941    1631  FRONTIER-FRTR, US
 20115        2141       2795     519  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        5925       1599     131  UNI2-AS, ES
 31334        4040        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3776        203      20  ALJAWWALSTC-AS, SA
  8551        3292        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2907        465    1995  AKAMAI-ASN1, US
 12389        2480       2248     731  ROSTELECOM-AS, RU
 34984        2092        350     560  TELLCOM-AS, TR
  9009        2060        217    1097  M247, GB
  9121        1922       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        6266       3291     596  Uninet S.A. de C.V., MX
 10620        3361        534     446  Telmex Colombia S.A., CO
 11830        2672        369      63  Instituto Costarricense de Electricidad
  6503        1673        327     388  Axtel, S.A.B. de C.V., MX
  7303        1557       1030     265  Telecom Argentina S.A., AR
 28573        1329       2236     189  CLARO S.A., BR
 13999        1231        502     288  Mega Cable, S.A. de C.V., MX
  6147        1126        379      39  Telefonica del Peru S.A.A., PE
  3816        1086        563     137  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        1499        393      22  LINKdotNET-AS, EG
 24835        1099        566      24  RAYA-AS, EG
 36992        1057       1535      74  ETISALAT-MISR, EG
 36903         875        452      97  MT-MPLS, MA
  6713         599       1863      34  IAM-AS, MA
 29571         557         68      11  ORANGE-COTE-IVOIRE, CI
 37342         482         32       1  MOVITEL, MZ
 36935         387        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        6266       3291     596  Uninet S.A. de C.V., MX
 12479        5925       1599     131  UNI2-AS, ES
  7545        5305        666     617  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4623       4192      73  ERX-CERNET-BKB China Education and Rese
 31334        4040        484      13  KABELDEUTSCHLAND-AS, DE
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 11492        3998        266     665  CABLEONE, US
 16509        3868       7816    1701  AMAZON-02, US
 39891        3776        203      20  ALJAWWALSTC-AS, SA
 22773        3533       2971     151  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        5925         5794  UNI2-AS, ES
  7545        5305         4688  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4623         4550  ERX-CERNET-BKB China Education and Research Net
 31334        4040         4027  KABELDEUTSCHLAND-AS, DE
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3776         3756  ALJAWWALSTC-AS, SA
 22773        3533         3382  ASN-CXA-ALL-CCI-22773-RDC, US
 11492        3998         3333  CABLEONE, US
  7552        3332         3308  VIETEL-AS-AP Viettel Group, VN
  6327        3376         3284  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    /15:1914    /16:13390   /17:8149    /18:13860   
/19:25771   /20:40400   /21:47521   /22:98553   /23:81432   /24:463267  
/25:1289    /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        4908        5925  UNI2-AS, ES
 31334        3885        4040  KABELDEUTSCHLAND-AS, DE
  6327        3165        3376  SHAW, CA
 11492        3128        3998  CABLEONE, US
  7155        3125        4034  VIASAT-SP-BACKBONE, US
 39891        2946        3776  ALJAWWALSTC-AS, SA
  8551        2752        3292  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2747        3533  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2080        6266  Uninet S.A. de C.V., MX
 30036        2059        2311  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1543      2:1157      3:30        4:19        5:3314      6:48     
   8:1379      9:1        12:1787     13:495      14:2242     15:74     
  16:9        17:285      18:79       20:58       23:3363     24:2646   
  25:4        27:2497     31:2986     32:103      35:40       36:933    
  37:3267     38:1913     39:323      40:132      41:3400     42:879    
  43:2100     44:196      45:13613    46:3671     47:276      49:1424   
  50:1219     51:87       52:1132     54:271      55:694      56:6      
  57:48       58:1882     59:1125     60:691      61:2200     62:2198   
  63:1947     64:5069     65:2315     66:4866     67:2832     68:1208   
  69:3798     70:1426     71:669      72:2774     74:2634     75:1436   
  76:667      77:2575     78:1951     79:2428     80:1857     81:1572   
  82:1244     83:1116     84:1220     85:2498     86:562      87:1729   
  88:1086     89:2694     90:314      91:7553     92:1484     93:2452   
  94:2606     95:3728     96:1016     97:337      98:966      99:962    
 100:85      101:1085    102:795     103:23249   104:3567    105:392    
 106:836     107:1964    108:704     109:3782    110:1780    111:1994   
 112:1572    113:1392    114:1517    115:1835    116:1788    117:2050   
 118:2102    119:1700    120:851     121:1040    122:2365    123:1887   
 124:1558    125:2034    128:1364    129:916     130:621     131:1825   
 132:761     133:299     134:1235    135:275     136:603     137:843    
 138:2184    139:987     140:596     141:887     142:878     143:1179   
 144:949     145:325     146:1478    147:1013    148:2064    149:1129   
 150:812     151:1280    152:1471    153:370     154:4671    155:892    
 156:3325    157:1084    158:765     159:1937    160:1763    161:1018   
 162:3034    163:781     164:1436    165:1247    166:544     167:1504   
 168:3691    169:495     170:4230    171:757     172:1883    173:2379   
 174:1036    175:1013    176:2643    177:4156    178:3015    179:1478   
 180:2193    181:2454    182:2845    183:1117    184:2400    185:16160  
 186:3752    187:2583    188:4059    189:2122    190:8302    191:1522   
 192:10243   193:7387    194:6031    195:4310    196:3416    197:1895   
 198:6126    199:5924    200:7171    201:5145    202:10422   203:10125  
 204:4549    205:3064    206:3256    207:3290    208:4010    209:4377   
 210:3999    211:1989    212:3199    213:3008    214:1171    215:54     
 216:5925    217:2355    218:874     219:604     220:1981    221:915    
 222:1002    223:1466   

End of report



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