[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jun 9 18:02:08 UTC 2023


This is an automated weekly mailing describing the state of the Global
IPv4 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 https://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

IPv4 Routing Table Report   04:00 +10GMT Sat 10 Jun, 2023

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              924996
    Prefixes after maximum aggregation (per Origin AS):          350668
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      450404
Total ASes present in the Internet Routing Table:                 74496
    Prefixes per ASN:                                             12.42
Origin-only ASes present in the Internet Routing Table:           63949
Origin ASes announcing only one prefix:                           26294
Transit ASes present in the Internet Routing Table:               10547
Transit-only ASes present in the Internet Routing Table:            440
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      63
    Max AS path prepend of ASN ( 59588)                              54
Prefixes from unregistered ASNs in the Routing Table:              1007
    Number of instances of unregistered ASNs:                      1014
Number of 32-bit ASNs allocated by the RIRs:                      42059
Number of 32-bit ASNs visible in the Routing Table:               34676
Prefixes from 32-bit ASNs in the Routing Table:                  172519
Number of bogon 32-bit ASNs visible in the Routing Table:            27
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            573
Number of addresses announced to Internet:                   3056292352
    Equivalent to 182 /8s, 43 /16s and 82 /24s
    Percentage of available address space announced:               82.6
    Percentage of allocated address space announced:               82.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:      308448

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

Prefixes being announced by APNIC Region ASes:                   245983
    Total APNIC prefixes after maximum aggregation:               69691
    APNIC Deaggregation factor:                                    3.53
Prefixes being announced from the APNIC address blocks:          239946
    Unique aggregates announced from the APNIC address blocks:    98519
APNIC Region origin ASes present in the Internet Routing Table:   13460
    APNIC Prefixes per ASN:                                       17.83
APNIC Region origin ASes announcing only one prefix:               3977
APNIC Region transit ASes present in the Internet Routing Table:   1796
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8771
Number of APNIC addresses announced to Internet:              773573248
    Equivalent to 46 /8s, 27 /16s and 202 /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, 131072-153913
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:                    270503
    Total ARIN prefixes after maximum aggregation:               123188
    ARIN Deaggregation factor:                                     2.20
Prefixes being announced from the ARIN address blocks:           273282
    Unique aggregates announced from the ARIN address blocks:    130620
ARIN Region origin ASes present in the Internet Routing Table:    19135
    ARIN Prefixes per ASN:                                        14.28
ARIN Region origin ASes announcing only one prefix:                6999
ARIN Region transit ASes present in the Internet Routing Table:    1954
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4814
Number of ARIN addresses announced to Internet:              1280649984
    Equivalent to 76 /8s, 85 /16s and 43 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    259723
    Total RIPE prefixes after maximum aggregation:               122748
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           255754
    Unique aggregates announced from the RIPE address blocks:    158956
RIPE Region origin ASes present in the Internet Routing Table:    28324
    RIPE Prefixes per ASN:                                         9.03
RIPE Region origin ASes announcing only one prefix:               12048
RIPE Region transit ASes present in the Internet Routing Table:    3966
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          63
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11199
Number of RIPE addresses announced to Internet:               717503104
    Equivalent to 42 /8s, 196 /16s and 58 /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:                  118382
    Total LACNIC prefixes after maximum aggregation:              28486
    LACNIC Deaggregation factor:                                   4.16
Prefixes being announced from the LACNIC address blocks:         117541
    Unique aggregates announced from the LACNIC address blocks:   49454
LACNIC Region origin ASes present in the Internet Routing Table:  11006
    LACNIC Prefixes per ASN:                                      10.68
LACNIC Region origin ASes announcing only one prefix:              2657
LACNIC Region transit ASes present in the Internet Routing Table:  2297
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8794
Number of LACNIC addresses announced to Internet:             176989184
    Equivalent to 10 /8s, 140 /16s and 164 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + 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:                  29398
    Total AfriNIC prefixes after maximum aggregation:              5836
    AfriNIC Deaggregation factor:                                  5.04
Prefixes being announced from the AfriNIC address blocks:         37900
    Unique aggregates announced from the AfriNIC address blocks:  12386
AfriNIC Region origin ASes present in the Internet Routing Table:  1751
    AfriNIC Prefixes per ASN:                                     21.64
AfriNIC Region origin ASes announcing only one prefix:              613
AfriNIC Region transit ASes present in the Internet Routing Table:  330
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1098
Number of AfriNIC addresses announced to Internet:            107184384
    Equivalent to 6 /8s, 99 /16s and 129 /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
  9808        9516       8706      40  CHINAMOBILE-CN China Mobile Communicati
  7545        5726        784     692  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4858       4192      75  ERX-CERNET-BKB China Education and Rese
 18403        4182        347      25  FPT-AS-AP FPT Telecom Company, VN
  7713        3568       1043      66  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3379       1856      96  VNPT-AS-VN VNPT Corp, VN
  7552        3373       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3022        498     252  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2537      11253     584  KIXS-AS-KR Korea Telecom, KR
 24560        2418        836     444  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd

Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        8482      10832    3088  AMAZON-02, US
 11492        4518        299     620  CABLEONE, US
  7155        4101        284      75  VIASAT-SP-BACKBONE, US
 22773        3571       3052     270  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3524       1319      66  SHAW, CA
   749        3127      54969    2379  DNIC-AS-00749, US
 16625        3117       1554    2353  AKAMAI-AS, US
396982        2662       3593     376  GOOGLE-CLOUD-PLATFORM, US
 30036        2504        360     419  MEDIACOM-ENTERPRISE-BUSINESS, US
  7018        2451      24003    1540  ATT-INTERNET4, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        7298       1706     140  UNI2-AS, ES
 39891        4897        290      61  ALJAWWALSTC-AS, SA
 20940        4088       3398     161  AKAMAI-ASN1, NL
  8551        3452        369      34  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2953       2291     911  ROSTELECOM-AS, RU
  9009        2661        247    1387  M247, RO
 34984        2275        360     605  TELLCOM-AS, TR
  6849        1976        307      17  UKRTELNET, UA
 58224        1828        945     534  TCI, IR
 61317        1686        113    1310  ASDETUK www.heficed.com, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       11397       3362     601  Uninet S.A. de C.V., MX
 10620        3529        507     838  Telmex Colombia S.A., CO
 13999        2336        351     625  Mega Cable, S.A. de C.V., MX
 11830        2268        369      64  Instituto Costarricense de Electricidad
 28573        1320       2324     238  Claro NXT Telecomunicacoes Ltda, BR
  6503        1302        343     511  Axtel, S.A.B. de C.V., MX
  3816        1299        770     174  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1133        370      22  Telefonica del Peru S.A.A., PE
 11664        1101        180     441  Techtel LMDS Comunicaciones Interactiva
 26615        1025       2498      45  TIM SA, BR

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1586        393      19  LINKdotNET-AS, EG
 24835        1536        533      27  RAYA-AS, EG
 36992        1304       1517     280  ETISALAT-MISR, EG
 36903        1242        550      99  MT-MPLS, MA
 29571        1036         67      47  ORANGE-COTE-IVOIRE, CI
 36935         917        520      42  Vodafone-, EG
  6713         551       1861      34  IAM-AS, MA
 15399         532         54      49  WANANCHI-, KE
 24757         492         73       5  EthioNet-AS, ET
 37342         480         32       1  MOVITEL, MZ

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       11397       3362     601  Uninet S.A. de C.V., MX
  9808        9516       8706      40  CHINAMOBILE-CN China Mobile Communicati
 16509        8482      10832    3088  AMAZON-02, US
 12479        7298       1706     140  UNI2-AS, ES
  7545        5726        784     692  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891        4897        290      61  ALJAWWALSTC-AS, SA
  4538        4858       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4518        299     620  CABLEONE, US
 18403        4182        347      25  FPT-AS-AP FPT Telecom Company, VN
  7155        4101        284      75  VIASAT-SP-BACKBONE, US

Complete listing at https://thyme.apnic.net/current/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  9808        9516         9476  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7298         7158  UNI2-AS, ES
 16509        8482         5394  AMAZON-02, US
  7545        5726         5034  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891        4897         4836  ALJAWWALSTC-AS, SA
  4538        4858         4783  ERX-CERNET-BKB China Education and Research Net
 18403        4182         4157  FPT-AS-AP FPT Telecom Company, VN
  7155        4101         4026  VIASAT-SP-BACKBONE, US
 20940        4088         3927  AKAMAI-ASN1, NL
 11492        4518         3898  CABLEONE, US

Complete listing at https://thyme.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     33492  UNALLOCATED  8.6.184.0/23             33650  COMCAST-33650, US
     33123  UNALLOCATED  8.10.69.0/24             11168  SCC, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24             46887  LIGHTOWER, US
    396894  UNALLOCATED  8.28.201.0/24            46887  LIGHTOWER, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
     18798  UNALLOCATED  8.40.106.0/24             6461  ZAYO-6461, US

Complete listing at https://thyme.apnic.net/current/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
23.141.0.0/24        Origin:    395350  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
27.100.7.0/24       Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
41.57.124.0/22       Origin:     37442  UNASSIGNED
41.57.124.0/22      Transit:     37204  TELONE, ZW
41.57.124.0/23       Origin:     37442  UNASSIGNED
41.57.124.0/23      Transit:     37204  TELONE, ZW

Complete listing at https://thyme.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        /8:16       /9:14      /10:39      /11:103     /12:301     
/13:582     /14:1199    /15:2060    /16:13472   /17:8236    /18:13854   
/19:25156   /20:44023   /21:51442   /22:110048  /23:98473   /24:555228  
/25:750     /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        6387        7298  UNI2-AS, ES
  8151        5353       11397  Uninet S.A. de C.V., MX
 39891        3632        4897  ALJAWWALSTC-AS, SA
 11492        3429        4518  CABLEONE, US
  6327        3334        3524  SHAW, CA
  7155        3086        4101  VIASAT-SP-BACKBONE, US
  8551        2925        3452  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2637        3571  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2160        2504  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2085        3529  Telmex Colombia S.A., CO

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

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

   1:2177      2:1276      3:197       4:1         5:4537      6:132    
   7:6         8:1545      9:1        11:172      12:1532     13:387    
  14:2312     15:304      16:193      17:369      18:455      20:264    
  21:4        22:188      23:6306     24:2603     25:6        27:2475   
  29:19       31:2510     32:81       34:22       35:112      36:1970   
  37:4675     38:4794     39:846      40:151      41:3937     42:2001   
  43:2336     44:306      45:16550    46:4315     47:376      49:1768   
  50:1865     51:585      52:1593     54:390      55:868      56:8      
  57:117      58:1888     59:1103     60:987      61:2521     62:2678   
  63:1906     64:5671     65:2308     66:5025     67:3054     68:1346   
  69:4138     70:1206     71:672      72:2989     74:2626     75:1558   
  76:612      77:2443     78:1824     79:2967     80:2118     81:1792   
  82:1492     83:1264     84:1526     85:3008     86:759      87:2013   
  88:1176     89:3731     90:615      91:7763     92:2064     93:2621   
  94:3619     95:4058     96:1317     97:336      98:1130     99:744    
 100:88      101:1077    102:2737    103:31507   104:4610    105:503    
 106:961     107:2584    108:1055    109:4201    110:2103    111:3165   
 112:2039    113:1799    114:1665    115:2001    116:1912    117:2518   
 118:2619    119:2000    120:1825    121:1131    122:2593    123:2168   
 124:1616    125:2506    128:1468    129:1062    130:1008    131:1977   
 132:812     133:420     134:1831    135:307     136:875     137:949    
 138:2564    139:1562    140:1263    141:1429    142:1459    143:1519   
 144:1115    145:345     146:1952    147:1593    148:2433    149:2259   
 150:882     151:1151    152:1818    153:490     154:4514    155:1424   
 156:1800    157:1315    158:1086    159:2225    160:2549    161:1554   
 162:3516    163:1536    164:1630    165:1814    166:1105    167:1721   
 168:3883    169:951     170:4591    171:901     172:3580    173:2972   
 174:1073    175:1178    176:3711    177:4582    178:3604    179:2173   
 180:2516    181:3485    182:3432    183:2080    184:2351    185:20329  
 186:4780    187:3957    188:4128    189:3666    190:9206    191:1445   
 192:10927   193:8912    194:7325    195:5173    196:3126    197:2384   
 198:5971    199:6108    200:8011    201:5927    202:10612   203:10296  
 204:4567    205:3715    206:4276    207:3459    208:4114    209:4898   
 210:4452    211:2524    212:4219    213:3625    214:1088    215:59     
 216:6661    217:2730    218:1297    219:580     220:1995    221:965    
 222:857     223:2181   

End of report


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