[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 10 18:03:34 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 11 Jul, 2020

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

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

BGP routing table entries examined:                              814906
    Prefixes after maximum aggregation (per Origin AS):          309350
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      393731
Total ASes present in the Internet Routing Table:                 68570
    Prefixes per ASN:                                             11.88
Origin-only ASes present in the Internet Routing Table:           58888
Origin ASes announcing only one prefix:                           24571
Transit ASes present in the Internet Routing Table:                9682
Transit-only ASes present in the Internet Routing Table:            297
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:               856
    Number of instances of unregistered ASNs:                       857
Number of 32-bit ASNs allocated by the RIRs:                      32419
Number of 32-bit ASNs visible in the Routing Table:               26740
Prefixes from 32-bit ASNs in the Routing Table:                  122999
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:            519
Number of addresses announced to Internet:                   2844535296
    Equivalent to 169 /8s, 140 /16s and 42 /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:      275092

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

Prefixes being announced by APNIC Region ASes:                   213547
    Total APNIC prefixes after maximum aggregation:               62625
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          207325
    Unique aggregates announced from the APNIC address blocks:    86072
APNIC Region origin ASes present in the Internet Routing Table:   10707
    APNIC Prefixes per ASN:                                       19.36
APNIC Region origin ASes announcing only one prefix:               3015
APNIC Region transit ASes present in the Internet Routing Table:   1598
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5787
Number of APNIC addresses announced to Internet:              768306560
    Equivalent to 45 /8s, 203 /16s and 109 /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:                    238511
    Total ARIN prefixes after maximum aggregation:               109521
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           235868
    Unique aggregates announced from the ARIN address blocks:    116804
ARIN Region origin ASes present in the Internet Routing Table:    18529
    ARIN Prefixes per ASN:                                        12.73
ARIN Region origin ASes announcing only one prefix:                6782
ARIN Region transit ASes present in the Internet Routing Table:    1902
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:    3308
Number of ARIN addresses announced to Internet:              1082475008
    Equivalent to 64 /8s, 133 /16s and 66 /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:                    231095
    Total RIPE prefixes after maximum aggregation:               106765
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           227678
    Unique aggregates announced from the RIPE address blocks:    134371
RIPE Region origin ASes present in the Internet Routing Table:    27176
    RIPE Prefixes per ASN:                                         8.38
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:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9289
Number of RIPE addresses announced to Internet:               709184896
    Equivalent to 42 /8s, 69 /16s and 77 /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:                  107597
    Total LACNIC prefixes after maximum aggregation:              24991
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         108723
    Unique aggregates announced from the LACNIC address blocks:   46766
LACNIC Region origin ASes present in the Internet Routing Table:  10079
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2516
LACNIC Region transit ASes present in the Internet Routing Table:  1895
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:  7656
Number of LACNIC addresses announced to Internet:             174563840
    Equivalent to 10 /8s, 103 /16s and 162 /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:                  23299
    Total AfriNIC prefixes after maximum aggregation:              4776
    AfriNIC Deaggregation factor:                                  4.88
Prefixes being announced from the AfriNIC address blocks:         34793
    Unique aggregates announced from the AfriNIC address blocks:   9292
AfriNIC Region origin ASes present in the Internet Routing Table:  1409
    AfriNIC Prefixes per ASN:                                     24.69
AfriNIC Region origin ASes announcing only one prefix:              494
AfriNIC Region transit ASes present in the Internet Routing Table:  286
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  700
Number of AfriNIC addresses announced to Internet:            109560576
    Equivalent to 6 /8s, 135 /16s and 195 /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        5514        735     656  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4741       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3391       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3168       1839     101  VNPT-AS-VN VNPT Corp, VN
  7713        2700        827     535  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2577       9043      60  CMNET-GD Guangdong Mobile Communication
  9498        2286        434     228  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2268      11101     551  KIXS-AS-KR Korea Telecom, KR
  4755        2134        441     193  TATACOMM-AS TATA Communications formerl
  9394        2033       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        4456        299     656  CABLEONE, US
  7155        4019        264      27  VIASAT-SP-BACKBONE, US
 16509        4014       8144    1804  AMAZON-02, US
 22773        3578       2970     157  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3351       1324      90  SHAW, CA
 16625        3132       1635    2227  AKAMAI-AS, US
 30036        2424        365     158  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2417       5075     526  CENTURYLINK-US-LEGACY-QWEST, US
 26484        2312        145     241  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        5839       1652     135  UNI2-AS, ES
 31334        5141        471      47  KABELDEUTSCHLAND-AS, DE
  8551        3172        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3064       1313    1335  AKAMAI-ASN1, EU
 39891        2879        171      19  ALJAWWALSTC-AS, SA
 12389        2550       2263     757  ROSTELECOM-AS, RU
 34984        2163        354     566  TELLCOM-AS, TR
  9009        2094        216    1133  M247, GB
 13188        1609        100      35  TRIOLAN, UA
 61317        1366        162     585  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        6783       3332     596  Uninet S.A. de C.V., MX
 10620        3368        530     504  Telmex Colombia S.A., CO
 11830        2646        369      63  Instituto Costarricense de Electricidad
  6503        1692        325     381  Mega Cable, S.A. de C.V., MX
  7303        1503        972     252  Telecom Argentina S.A., AR
 13999        1448        517     342  Mega Cable, S.A. de C.V., MX
 28573        1402       2247     217  CLARO S.A., BR
  6147        1134        379      39  Telefonica del Peru S.A.A., PE
  3816        1115        570     152  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        1491        393      22  LINKdotNET-AS, EG
 24835        1120        474      23  RAYA-AS, EG
 36992        1111       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        6783       3332     596  Uninet S.A. de C.V., MX
 12479        5839       1652     135  UNI2-AS, ES
  7545        5514        735     656  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        5141        471      47  KABELDEUTSCHLAND-AS, DE
  4538        4741       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4456        299     656  CABLEONE, US
  7155        4019        264      27  VIASAT-SP-BACKBONE, US
 16509        4014       8144    1804  AMAZON-02, US
 22773        3578       2970     157  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3391       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        5839         5704  UNI2-AS, ES
 31334        5141         5094  KABELDEUTSCHLAND-AS, DE
  7545        5514         4858  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4741         4668  ERX-CERNET-BKB China Education and Research Net
  7155        4019         3992  VIASAT-SP-BACKBONE, US
 11492        4456         3800  CABLEONE, US
 22773        3578         3421  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3391         3370  VIETEL-AS-AP Viettel Group, VN
  6327        3351         3261  SHAW, CA
  8551        3172         3127  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      /10:37      /11:100     /12:286     
/13:577     /14:1175    /15:1923    /16:13364   /17:8231    /18:13972   
/19:25874   /20:40900   /21:48454   /22:101151  /23:83711   /24:473849  
/25:1282    /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        5025        5141  KABELDEUTSCHLAND-AS, DE
 12479        4863        5839  UNI2-AS, ES
 11492        3516        4456  CABLEONE, US
  6327        3140        3351  SHAW, CA
  7155        3112        4019  VIASAT-SP-BACKBONE, US
 22773        2780        3578  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2631        3172  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2459        6783  Uninet S.A. de C.V., MX
 39891        2417        2879  ALJAWWALSTC-AS, SA
 30036        2166        2424  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1551      2:1188      3:30        4:19        5:3374      6:52     
   8:1472      9:1        11:1        12:1780     13:510      14:2297   
  15:72       16:8        17:291      18:80       20:110      23:3767   
  24:2308     25:3        27:2546     31:3092     32:130      34:1      
  35:41       36:954      37:3282     38:1936     39:429      40:127    
  41:3667     42:615      43:2119     44:206      45:14548    46:3717   
  47:297      49:1478     50:1544     51:90       52:1105     54:224    
  55:671      56:6        57:51       58:1757     59:1178     60:765    
  61:2297     62:2124     63:1979     64:5207     65:2326     66:5018   
  67:2874     68:1173     69:3984     70:1399     71:679      72:2859   
  74:2568     75:1447     76:653      77:2894     78:1642     79:2392   
  80:1946     81:1652     82:1313     83:1253     84:1230     85:2609   
  86:547      87:1742     88:1136     89:2754     90:331      91:8072   
  92:1534     93:2504     94:2735     95:3907     96:1222     97:339    
  98:920      99:975     100:86      101:999     102:1004    103:23917  
 104:3444    105:400     106:912     107:2048    108:704     109:3641   
 110:1848    111:2018    112:1636    113:1337    114:1541    115:1827   
 116:1789    117:2097    118:2073    119:1716    120:843     121:1035   
 122:2445    123:2073    124:1567    125:2028    128:1376    129:1214   
 130:659     131:1861    132:773     133:306     134:1349    135:304    
 136:621     137:847     138:2211    139:1010    140:697     141:1049   
 142:936     143:1232    144:1093    145:330     146:1478    147:1009   
 148:2115    149:1220    150:808     151:1073    152:1498    153:416    
 154:4542    155:1118    156:2995    157:1119    158:845     159:1974   
 160:1910    161:1068    162:3090    163:825     164:1476    165:1296   
 166:564     167:1618    168:3522    169:580     170:4241    171:779    
 172:1944    173:2573    174:982     175:1056    176:2567    177:4177   
 178:3026    179:1535    180:2273    181:2487    182:3097    183:1155   
 184:2408    185:16519   186:3788    187:2881    188:4053    189:2445   
 190:8797    191:1354    192:10406   193:7551    194:6247    195:4395   
 196:3184    197:2022    198:6118    199:5891    200:7247    201:5246   
 202:10556   203:10261   204:4555    205:3118    206:3176    207:3264   
 208:4063    209:4463    210:3993    211:2017    212:3418    213:3131   
 214:1167    215:62      216:6013    217:2408    218:855     219:616    
 220:2014    221:949     222:1006    223:1519   

End of report


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