[afnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jun 23 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 24 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:                              926756
    Prefixes after maximum aggregation (per Origin AS):          351055
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      451294
Total ASes present in the Internet Routing Table:                 74556
    Prefixes per ASN:                                             12.43
Origin-only ASes present in the Internet Routing Table:           64018
Origin ASes announcing only one prefix:                           26297
Transit ASes present in the Internet Routing Table:               10538
Transit-only ASes present in the Internet Routing Table:            439
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      52
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:              1011
    Number of instances of unregistered ASNs:                      1015
Number of 32-bit ASNs allocated by the RIRs:                      42143
Number of 32-bit ASNs visible in the Routing Table:               34750
Prefixes from 32-bit ASNs in the Routing Table:                  173096
Number of bogon 32-bit ASNs visible in the Routing Table:            25
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            566
Number of addresses announced to Internet:                   3055960832
    Equivalent to 182 /8s, 38 /16s and 67 /24s
    Percentage of available address space announced:               82.5
    Percentage of allocated address space announced:               82.5
    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:      309129

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

Prefixes being announced by APNIC Region ASes:                   246375
    Total APNIC prefixes after maximum aggregation:               69688
    APNIC Deaggregation factor:                                    3.54
Prefixes being announced from the APNIC address blocks:          240356
    Unique aggregates announced from the APNIC address blocks:    98626
APNIC Region origin ASes present in the Internet Routing Table:   13490
    APNIC Prefixes per ASN:                                       17.82
APNIC Region origin ASes announcing only one prefix:               3986
APNIC Region transit ASes present in the Internet Routing Table:   1792
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:   8806
Number of APNIC addresses announced to Internet:              773910656
    Equivalent to 46 /8s, 32 /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, 131072-153913
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:                    271252
    Total ARIN prefixes after maximum aggregation:               123431
    ARIN Deaggregation factor:                                     2.20
Prefixes being announced from the ARIN address blocks:           273839
    Unique aggregates announced from the ARIN address blocks:    130833
ARIN Region origin ASes present in the Internet Routing Table:    19129
    ARIN Prefixes per ASN:                                        14.32
ARIN Region origin ASes announcing only one prefix:                6993
ARIN Region transit ASes present in the Internet Routing Table:    1956
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:    4817
Number of ARIN addresses announced to Internet:              1279967232
    Equivalent to 76 /8s, 74 /16s and 192 /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:                    260071
    Total RIPE prefixes after maximum aggregation:               122848
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           256267
    Unique aggregates announced from the RIPE address blocks:    159393
RIPE Region origin ASes present in the Internet Routing Table:    28343
    RIPE Prefixes per ASN:                                         9.04
RIPE Region origin ASes announcing only one prefix:               12035
RIPE Region transit ASes present in the Internet Routing Table:    3954
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11217
Number of RIPE addresses announced to Internet:               717362304
    Equivalent to 42 /8s, 194 /16s and 20 /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:                  118574
    Total LACNIC prefixes after maximum aggregation:              28538
    LACNIC Deaggregation factor:                                   4.15
Prefixes being announced from the LACNIC address blocks:         117689
    Unique aggregates announced from the LACNIC address blocks:   49558
LACNIC Region origin ASes present in the Internet Routing Table:  11017
    LACNIC Prefixes per ASN:                                      10.68
LACNIC Region origin ASes announcing only one prefix:              2672
LACNIC Region transit ASes present in the Internet Routing Table:  2304
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        52
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8808
Number of LACNIC addresses announced to Internet:             176947968
    Equivalent to 10 /8s, 140 /16s and 3 /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:                  29473
    Total AfriNIC prefixes after maximum aggregation:              5832
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         38039
    Unique aggregates announced from the AfriNIC address blocks:  12419
AfriNIC Region origin ASes present in the Internet Routing Table:  1751
    AfriNIC Prefixes per ASN:                                     21.72
AfriNIC Region origin ASes announcing only one prefix:              611
AfriNIC Region transit ASes present in the Internet Routing Table:  326
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       39
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1102
Number of AfriNIC addresses announced to Internet:            107444224
    Equivalent to 6 /8s, 103 /16s and 120 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  9808        9521       8706      40  CHINAMOBILE-CN China Mobile Communicati
  7545        5677        784     695  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4857       4192      75  ERX-CERNET-BKB China Education and Rese
 18403        4223        347      25  FPT-AS-AP FPT Telecom Company, VN
  7713        3554       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3374       1856      96  VNPT-AS-VN VNPT Corp, VN
  7552        3371       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3042        498     252  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2548      11253     584  KIXS-AS-KR Korea Telecom, KR
 24560        2433        837     441  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        8558      10873    3156  AMAZON-02, US
 11492        4514        299     625  CABLEONE, US
  7155        4153        288      86  VIASAT-SP-BACKBONE, US
 22773        3548       3053     268  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3524       1319      66  SHAW, CA
 16625        3136       1560    2357  AKAMAI-AS, US
   749        3125      54969    2377  DNIC-AS-00749, US
396982        2665       3594     377  GOOGLE-CLOUD-PLATFORM, US
 30036        2511        362     395  MEDIACOM-ENTERPRISE-BUSINESS, US
  7018        2452      24006    1557  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        7303       1706     141  UNI2-AS, ES
 39891        4897        290      61  ALJAWWALSTC-AS, SA
 20940        4098       3398     162  AKAMAI-ASN1, NL
  8551        3463        368      33  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2967       2292     912  ROSTELECOM-AS, RU
  9009        2661        247    1383  M247, RO
 34984        2298        361     605  TELLCOM-AS, TR
  6849        1926        307      17  UKRTELNET, UA
 58224        1830        946     537  TCI, IR
 61317        1644        110    1275  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       11445       3355     589  UNINET, MX
 10620        3525        506     843  Telmex Colombia S.A., CO
 13999        2370        354     631  Mega Cable, S.A. de C.V., MX
 11830        2269        369      64  Instituto Costarricense de Electricidad
 28573        1317       2323     241  Claro NXT Telecomunicacoes Ltda, BR
  3816        1306        774     170  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6503        1305        344     512  Axtel, S.A.B. de C.V., MX
  6147        1133        370      22  Telefonica del Peru S.A.A., PE
 11664        1102        180     440  Techtel LMDS Comunicaciones Interactiva
 26615        1037       2500      47  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        1581        393      19  LINKdotNET-AS, EG
 24835        1536        533      27  RAYA-AS, EG
 36992        1313       1518     282  ETISALAT-MISR, EG
 36903        1242        550      99  MT-MPLS, MA
 29571        1039         67      47  ORANGE-COTE-IVOIRE, CI
 36935         917        520      42  Vodafone-, EG
  6713         550       1861      34  IAM-AS, MA
 15399         534         54      49  WANANCHI-, KE
 24757         495         73       5  EthioNet-AS, ET
 37342         478         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       11445       3355     589  UNINET, MX
  9808        9521       8706      40  CHINAMOBILE-CN China Mobile Communicati
 16509        8558      10873    3156  AMAZON-02, US
 12479        7303       1706     141  UNI2-AS, ES
  7545        5677        784     695  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891        4897        290      61  ALJAWWALSTC-AS, SA
  4538        4857       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4514        299     625  CABLEONE, US
 18403        4223        347      25  FPT-AS-AP FPT Telecom Company, VN
  7155        4153        288      86  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        9521         9481  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7303         7162  UNI2-AS, ES
 16509        8558         5402  AMAZON-02, US
  7545        5677         4982  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891        4897         4836  ALJAWWALSTC-AS, SA
  4538        4857         4782  ERX-CERNET-BKB China Education and Research Net
 18403        4223         4198  FPT-AS-AP FPT Telecom Company, VN
  7155        4153         4067  VIASAT-SP-BACKBONE, US
 20940        4098         3936  AKAMAI-ASN1, NL
 11492        4514         3889  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
     19695  UNALLOCATED  8.20.161.0/24            46887  LIGHTOWER, 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

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     /12:300     
/13:581     /14:1201    /15:2068    /16:13461   /17:8256    /18:13860   
/19:25181   /20:44089   /21:51570   /22:110175  /23:98561   /24:556533  
/25:748     /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        6391        7303  UNI2-AS, ES
  8151        5378       11445  UNINET, MX
 39891        3632        4897  ALJAWWALSTC-AS, SA
 11492        3426        4514  CABLEONE, US
  6327        3334        3524  SHAW, CA
  7155        3111        4153  VIASAT-SP-BACKBONE, US
  8551        2932        3463  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2614        3548  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2168        2511  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2084        3525  Telmex Colombia S.A., CO

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

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

   1:2200      2:1322      3:215       4:5         5:4529      6:132    
   7:6         8:1539      9:1        11:172      12:1522     13:383    
  14:2313     15:302      16:192      17:372      18:468      20:262    
  21:4        22:188      23:6331     24:2600     25:6        27:2496   
  29:19       31:2510     32:81       34:22       35:114      36:1977   
  37:4673     38:4921     39:845      40:151      41:3931     42:2017   
  43:2331     44:307      45:16592    46:4316     47:377      49:1769   
  50:1877     51:585      52:1594     54:393      55:977      56:8      
  57:119      58:1890     59:1162     60:983      61:2530     62:2678   
  63:1915     64:5632     65:2315     66:5062     67:3065     68:1348   
  69:4137     70:1218     71:687      72:2990     74:2627     75:1565   
  76:617      77:2460     78:1827     79:3006     80:2115     81:1800   
  82:1497     83:1265     84:1531     85:3009     86:743      87:2010   
  88:1187     89:3756     90:616      91:7766     92:2047     93:2612   
  94:3608     95:4042     96:1314     97:336      98:1134     99:737    
 100:93      101:1080    102:2766    103:31635   104:4632    105:504    
 106:968     107:2577    108:1055    109:4205    110:2103    111:3176   
 112:2054    113:1797    114:1629    115:1980    116:1922    117:2524   
 118:2610    119:1985    120:1829    121:1138    122:2619    123:2181   
 124:1614    125:2507    128:1464    129:1056    130:1016    131:1967   
 132:816     133:422     134:1798    135:308     136:887     137:949    
 138:2566    139:1568    140:1263    141:1452    142:1452    143:1498   
 144:1126    145:340     146:1956    147:1584    148:2424    149:2223   
 150:880     151:1157    152:1843    153:491     154:4600    155:1415   
 156:1824    157:1312    158:1087    159:2268    160:2564    161:1554   
 162:3514    163:1548    164:1623    165:1838    166:1101    167:1714   
 168:3861    169:950     170:4595    171:899     172:3612    173:2970   
 174:1078    175:1184    176:3763    177:4586    178:3616    179:2110   
 180:2444    181:3488    182:3441    183:2074    184:2348    185:20407  
 186:4791    187:4005    188:4131    189:3686    190:9258    191:1439   
 192:10917   193:8925    194:7336    195:5166    196:3121    197:2389   
 198:5989    199:6096    200:7963    201:5939    202:10649   203:10293  
 204:4560    205:3695    206:4330    207:3457    208:4143    209:4934   
 210:4478    211:2525    212:4238    213:3625    214:1086    215:59     
 216:6694    217:2744    218:1296    219:582     220:1991    221:963    
 222:855     223:2203   

End of report



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