[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 17 18:03:22 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 18 Jul, 2020

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

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

BGP routing table entries examined:                              817116
    Prefixes after maximum aggregation (per Origin AS):          310311
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      392801
Total ASes present in the Internet Routing Table:                 68665
    Prefixes per ASN:                                             11.90
Origin-only ASes present in the Internet Routing Table:           58982
Origin ASes announcing only one prefix:                           24577
Transit ASes present in the Internet Routing Table:                9683
Transit-only ASes present in the Internet Routing Table:            296
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      43
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:               889
    Number of instances of unregistered ASNs:                       890
Number of 32-bit ASNs allocated by the RIRs:                      32542
Number of 32-bit ASNs visible in the Routing Table:               26839
Prefixes from 32-bit ASNs in the Routing Table:                  123768
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:            584
Number of addresses announced to Internet:                   2845076224
    Equivalent to 169 /8s, 148 /16s and 107 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:               76.8
    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:      276341

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

Prefixes being announced by APNIC Region ASes:                   213888
    Total APNIC prefixes after maximum aggregation:               62741
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          207605
    Unique aggregates announced from the APNIC address blocks:    86091
APNIC Region origin ASes present in the Internet Routing Table:   10740
    APNIC Prefixes per ASN:                                       19.33
APNIC Region origin ASes announcing only one prefix:               3027
APNIC Region transit ASes present in the Internet Routing Table:   1594
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5817
Number of APNIC addresses announced to Internet:              768689536
    Equivalent to 45 /8s, 209 /16s and 69 /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:                    238903
    Total ARIN prefixes after maximum aggregation:               109576
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           236275
    Unique aggregates announced from the ARIN address blocks:    115345
ARIN Region origin ASes present in the Internet Routing Table:    18530
    ARIN Prefixes per ASN:                                        12.75
ARIN Region origin ASes announcing only one prefix:                6769
ARIN Region transit ASes present in the Internet Routing Table:    1900
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3314
Number of ARIN addresses announced to Internet:              1082539264
    Equivalent to 64 /8s, 134 /16s and 61 /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:                    231615
    Total RIPE prefixes after maximum aggregation:               107439
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           228165
    Unique aggregates announced from the RIPE address blocks:    134726
RIPE Region origin ASes present in the Internet Routing Table:    27200
    RIPE Prefixes per ASN:                                         8.39
RIPE Region origin ASes announcing only one prefix:               11764
RIPE Region transit ASes present in the Internet Routing Table:    3846
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:    9310
Number of RIPE addresses announced to Internet:               709300352
    Equivalent to 42 /8s, 71 /16s and 16 /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:                  108414
    Total LACNIC prefixes after maximum aggregation:              25113
    LACNIC Deaggregation factor:                                   4.32
Prefixes being announced from the LACNIC address blocks:         109560
    Unique aggregates announced from the LACNIC address blocks:   46843
LACNIC Region origin ASes present in the Internet Routing Table:  10105
    LACNIC Prefixes per ASN:                                      10.84
LACNIC Region origin ASes announcing only one prefix:              2523
LACNIC Region transit ASes present in the Internet Routing Table:  1909
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        43
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7691
Number of LACNIC addresses announced to Internet:             174531328
    Equivalent to 10 /8s, 103 /16s and 35 /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:                  23406
    Total AfriNIC prefixes after maximum aggregation:              4771
    AfriNIC Deaggregation factor:                                  4.91
Prefixes being announced from the AfriNIC address blocks:         34927
    Unique aggregates announced from the AfriNIC address blocks:   9338
AfriNIC Region origin ASes present in the Internet Routing Table:  1418
    AfriNIC Prefixes per ASN:                                     24.63
AfriNIC Region origin ASes announcing only one prefix:              494
AfriNIC Region transit ASes present in the Internet Routing Table:  281
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  707
Number of AfriNIC addresses announced to Internet:            109563904
    Equivalent to 6 /8s, 135 /16s and 208 /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        5503        734     648  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4742       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3432       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3167       1839     101  VNPT-AS-VN VNPT Corp, VN
  7713        2708        828     563  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2566       9043      60  CMNET-GD Guangdong Mobile Communication
  9498        2284        434     228  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2261      11101     552  KIXS-AS-KR Korea Telecom, KR
  4755        2131        441     193  TATACOMM-AS TATA Communications formerl
  9394        2028       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        4466        300     652  CABLEONE, US
  7155        4041        264      32  VIASAT-SP-BACKBONE, US
 16509        4021       8144    1807  AMAZON-02, US
 22773        3590       2970     166  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3345       1323      83  SHAW, CA
 16625        3154       1650    2244  AKAMAI-AS, US
 30036        2440        368      98  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2421       5075     528  CENTURYLINK-US-LEGACY-QWEST, US
 26484        2313        145     238  IKGUL-26484, US
  5650        2306       2981    1622  FRONTIER-FRTR, 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        5879       1652     135  UNI2-AS, ES
 31334        5083        325     771  KABELDEUTSCHLAND-AS, DE
  8551        3193        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3098       2220    1023  AKAMAI-ASN1, EU
 39891        2879        171      19  ALJAWWALSTC-AS, SA
 12389        2557       2263     758  ROSTELECOM-AS, RU
 34984        2165        354     567  TELLCOM-AS, TR
  9009        2098        217    1143  M247, GB
 13188        1609        100      35  TRIOLAN, UA
 61317        1393        165     596  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        7079       3313     601  Uninet S.A. de C.V., MX
 10620        3361        530     530  Telmex Colombia S.A., CO
 11830        2474        369      63  Instituto Costarricense de Electricidad
  6503        1704        325     381  Axtel, S.A.B. de C.V., MX
  7303        1492        962     255  Telecom Argentina S.A., AR
 13999        1431        508     367  Mega Cable, S.A. de C.V., MX
 28573        1425       2248     219  CLARO S.A., BR
  6147        1129        379      39  Telefonica del Peru S.A.A., PE
  3816        1117        569     149  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         956        112      71  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        1493        393      22  LINKdotNET-AS, EG
 24835        1120        474      23  RAYA-AS, EG
 36992        1113       1539      76  ETISALAT-MISR, EG
 36903         917        480      93  MT-MPLS, MA
 29571         625         68      11  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         491         45      12  WANANCHI-, KE
 37342         482         32       1  MOVITEL, MZ
 36935         438        522      41  Vodafone-, EG
 23889         344        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        7079       3313     601  Uninet S.A. de C.V., MX
 12479        5879       1652     135  UNI2-AS, ES
  7545        5503        734     648  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        5083        325     771  KABELDEUTSCHLAND-AS, DE
  4538        4742       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4466        300     652  CABLEONE, US
  7155        4041        264      32  VIASAT-SP-BACKBONE, US
 16509        4021       8144    1807  AMAZON-02, US
 22773        3590       2970     166  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3432       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        5879         5744  UNI2-AS, ES
  7545        5503         4855  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4742         4669  ERX-CERNET-BKB China Education and Research Net
 31334        5083         4312  KABELDEUTSCHLAND-AS, DE
  7155        4041         4009  VIASAT-SP-BACKBONE, US
 11492        4466         3814  CABLEONE, US
 22773        3590         3424  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3432         3411  VIETEL-AS-AP Viettel Group, VN
  6327        3345         3262  SHAW, CA
  8551        3193         3148  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
     22357  UNALLOCATED  8.7.108.0/24              3356  LEVEL3, US
     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
     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
     46766  UNALLOCATED  8.44.208.0/24             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
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
27.126.158.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala
41.67.208.0/21       Origin:     15964  CAMNET-AS, CM
                    Transit:     12956  TELEFONICA TELXIUS, ES

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        /9:11      /10:38      /11:100     /12:286     
/13:575     /14:1175    /15:1922    /16:13374   /17:8240    /18:13974   
/19:25878   /20:40877   /21:48775   /22:101357  /23:84097   /24:475144  
/25:1284    /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
 31334        4982        5083  KABELDEUTSCHLAND-AS, DE
 12479        4906        5879  UNI2-AS, ES
 11492        3527        4466  CABLEONE, US
  6327        3141        3345  SHAW, CA
  7155        3129        4041  VIASAT-SP-BACKBONE, US
 22773        2783        3590  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2652        3193  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2494        7079  Uninet S.A. de C.V., MX
 39891        2417        2879  ALJAWWALSTC-AS, SA
 30036        2182        2440  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1575      2:1146      3:30        4:19        5:3399      6:52     
   8:1467      9:1        11:1        12:1785     13:510      14:2294   
  15:72       16:8        17:291      18:82       20:111      23:3783   
  24:2330     25:3        27:2547     31:3104     32:130      34:1      
  35:42       36:959      37:3290     38:1933     39:437      40:127    
  41:3676     42:624      43:2126     44:204      45:14564    46:3716   
  47:301      49:1477     50:1550     51:90       52:1106     54:224    
  55:675      56:6        57:51       58:1765     59:1174     60:769    
  61:2294     62:2122     63:1979     64:5218     65:2339     66:5030   
  67:2875     68:1174     69:4012     70:1399     71:679      72:2868   
  74:2570     75:1453     76:656      77:2890     78:1643     79:2447   
  80:1996     81:1647     82:1334     83:1262     84:1228     85:2615   
  86:549      87:1748     88:1146     89:2771     90:340      91:8075   
  92:1546     93:2502     94:2737     95:3898     96:1227     97:338    
  98:920      99:977     100:86      101:995     102:1016    103:23960  
 104:3444    105:400     106:903     107:2047    108:709     109:3616   
 110:1839    111:2025    112:1635    113:1351    114:1541    115:1833   
 116:1793    117:2089    118:2074    119:1720    120:839     121:1035   
 122:2439    123:2087    124:1567    125:2035    128:1359    129:1210   
 130:668     131:1860    132:769     133:306     134:1372    135:305    
 136:624     137:854     138:2206    139:1012    140:704     141:1054   
 142:936     143:1215    144:1097    145:333     146:1472    147:1017   
 148:2112    149:1229    150:809     151:1073    152:1489    153:416    
 154:4570    155:1124    156:2999    157:1112    158:855     159:1975   
 160:1904    161:1064    162:3094    163:826     164:1479    165:1294   
 166:564     167:1622    168:3543    169:586     170:4255    171:783    
 172:1945    173:2585    174:983     175:1058    176:2584    177:4703   
 178:3030    179:1511    180:2270    181:2494    182:3099    183:1159   
 184:2420    185:16569   186:3841    187:2886    188:4048    189:2475   
 190:8789    191:1366    192:10411   193:7571    194:6289    195:4417   
 196:3206    197:2033    198:6128    199:5878    200:7258    201:5195   
 202:10539   203:10264   204:4562    205:3094    206:3175    207:3280   
 208:4051    209:4461    210:3999    211:2016    212:3390    213:3140   
 214:1166    215:62      216:6035    217:2416    218:854     219:611    
 220:1994    221:949     222:1006    223:1520   

End of report


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