[afnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Oct 18 18:02:38 UTC 2024


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
UKNOF, 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 19 Oct, 2024

  IPv4 BGP Table (Global) as seen at Japan.

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

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

BGP routing table entries examined:                              964712
    Prefixes after maximum aggregation (per Origin AS):          366964
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      468314
    Number of IPv4 prefixes with a valid ROA:                    319217
    Number of IPv4 prefixes with an invalid ROA:                   1057
    Number of IPv4 prefixes with no ROA:                         644438
Total ASes present in the Internet Routing Table:                 76358
    Prefixes per ASN:                                             12.63
Origin-only ASes present in the Internet Routing Table:           65415
Origin ASes announcing only one prefix:                           26857
Transit ASes present in the Internet Routing Table:               10943
Transit-only ASes present in the Internet Routing Table:            533
Average AS path length visible in the Internet Routing Table:       5.3
    Max AS path length visible:                                      89
    Max AS path prepend of ASN (152107)                              85
Prefixes from unregistered ASNs in the Routing Table:              1004
    Number of instances of unregistered ASNs:                      1015
Number of 32-bit ASNs allocated by the RIRs:                      45580
Number of 32-bit ASNs visible in the Routing Table:               37275
Prefixes from 32-bit ASNs in the Routing Table:                  193534
Number of bogon 32-bit ASNs visible in the Routing Table:            51
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            523
Number of addresses announced to Internet:                   3028035072
    Equivalent to 180 /8s, 124 /16s and 38 /24s
    Percentage of available address space announced:               81.8
    Percentage of allocated address space announced:               81.8
    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:      315447

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

Prefixes being announced by APNIC Region ASes:                   258106
    Total APNIC prefixes after maximum aggregation:               75560
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          250022
    Unique aggregates announced from the APNIC address blocks:   101060
APNIC Region origin ASes present in the Internet Routing Table:   14409
    APNIC Prefixes per ASN:                                       17.35
APNIC Region origin ASes announcing only one prefix:               4392
APNIC Region transit ASes present in the Internet Routing Table:   1909
Average APNIC Region AS path length visible:                        5.5
    Max APNIC Region AS path length visible:                         89
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9840
Number of APNIC addresses announced to Internet:              756799616
    Equivalent to 45 /8s, 27 /16s and 216 /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:                    281921
    Total ARIN prefixes after maximum aggregation:               126129
    ARIN Deaggregation factor:                                     2.24
Prefixes being announced from the ARIN address blocks:           285249
    Unique aggregates announced from the ARIN address blocks:    135502
ARIN Region origin ASes present in the Internet Routing Table:    19174
    ARIN Prefixes per ASN:                                        14.88
ARIN Region origin ASes announcing only one prefix:                6975
ARIN Region transit ASes present in the Internet Routing Table:    2003
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          33
Number of ARIN region 32-bit ASNs visible in the Routing Table:    5034
Number of ARIN addresses announced to Internet:              1266824960
    Equivalent to 75 /8s, 130 /16s and 55 /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, 393216-402332
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:                    268106
    Total RIPE prefixes after maximum aggregation:               129491
    RIPE Deaggregation factor:                                     2.07
Prefixes being announced from the RIPE address blocks:           264845
    Unique aggregates announced from the RIPE address blocks:    168422
RIPE Region origin ASes present in the Internet Routing Table:    28784
    RIPE Prefixes per ASN:                                         9.20
RIPE Region origin ASes announcing only one prefix:               12139
RIPE Region transit ASes present in the Internet Routing Table:    3981
Average RIPE Region AS path length visible:                         5.3
    Max RIPE Region AS path length visible:                          43
Number of RIPE region 32-bit ASNs visible in the Routing Table:   12067
Number of RIPE addresses announced to Internet:               722340224
    Equivalent to 43 /8s, 14 /16s and 9 /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
                       196608-216475
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:                  122484
    Total LACNIC prefixes after maximum aggregation:              28523
    LACNIC Deaggregation factor:                                   4.29
Prefixes being announced from the LACNIC address blocks:         120142
    Unique aggregates announced from the LACNIC address blocks:   48565
LACNIC Region origin ASes present in the Internet Routing Table:  11173
    LACNIC Prefixes per ASN:                                      10.75
LACNIC Region origin ASes announcing only one prefix:              2657
LACNIC Region transit ASes present in the Internet Routing Table:  2470
Average LACNIC Region AS path length visible:                       5.9
    Max LACNIC Region AS path length visible:                        61
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  9079
Number of LACNIC addresses announced to Internet:             177570304
    Equivalent to 10 /8s, 149 /16s and 130 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                  33091
    Total AfriNIC prefixes after maximum aggregation:              6612
    AfriNIC Deaggregation factor:                                  5.00
Prefixes being announced from the AfriNIC address blocks:         43931
    Unique aggregates announced from the AfriNIC address blocks:  14328
AfriNIC Region origin ASes present in the Internet Routing Table:  1896
    AfriNIC Prefixes per ASN:                                     23.17
AfriNIC Region origin ASes announcing only one prefix:              694
AfriNIC Region transit ASes present in the Internet Routing Table:  370
Average AfriNIC Region AS path length visible:                      6.0
    Max AfriNIC Region AS path length visible:                       32
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1255
Number of AfriNIC addresses announced to Internet:            104219904
    Equivalent to 6 /8s, 54 /16s and 69 /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       10077       8751      85  CHINAMOBILE-CN China Mobile Communication
  7545        5977        840     656  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4872       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4529        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3966       1331      25  VIETEL-AS-AP Viettel Group, VN
  9498        3849        512     267  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3647       1036      71  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3260       1841     105  VNPT-AS-VN VNPT Corp, VN
 24560        2780        829     541  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2285      11519     586  KIXS-AS-KR Korea Telecom, KR

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       10878      11911    3790  AMAZON-02, US
 11492        4660        310     547  CABLEONE, US
   174        4452       8764     859  COGENT-174, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
  6327        3603       1320      79  SHAW, CA
 22773        3406       3035     188  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3264      54912    2511  DNIC-AS-00749, US
  7018        3194      23677    1974  ATT-INTERNET4, US
396982        2867       3652     421  GOOGLE-CLOUD-PLATFORM, US
 16625        2846       1241    2119  AKAMAI-AS, 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        7634       1709     143  UNI2-AS, ES
 39891        4668        282      60  ALJAWWALSTC-AS, SA
 20940        3862       3395     129  AKAMAI-ASN1, NL
  9009        3683        317    1890  M247, RO
 12389        2954       2294     883  ROSTELECOM-AS, RU
 34984        2335        357     580  TELLCOM-AS, TR
212238        1795        131    1333  CDNEXT, GB
 13188        1606        100      30  TRIOLAN, UA
  8452        1579       1852      14  TE-AS TE-AS, EG
  8551        1472        366      32  BEZEQ-INTERNATIONAL-AS Bezeqint Internet 

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       11547       3236     509  UNINET, MX
 10620        3546        494     937  Telmex Colombia S.A., CO
 13999        2532        534     356  Mega Cable, S.A. de C.V., MX
 11830        2007        369      64  Instituto Costarricense de Electricidad y
 28573        1339       2310     261  Claro NXT Telecomunicacoes Ltda, BR
  3816        1320        779     195  COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
  6503        1155        374     163  Axtel, S.A.B. de C.V., MX
 11664        1149        278      33  Techtel LMDS Comunicaciones Interactivas 
  6147        1105        369      22  Telefonica del Peru S.A.A., PE
 22884        1059         97     372  TOTAL PLAY TELECOMUNICACIONES SA DE CV, M

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
 24835        1636        593      29  RAYA-AS, EG
 24863        1615        389      16  LINKdotNET-AS, EG
 36992        1414       1519     283  ETISALAT-MISR, EG
 29571        1352         86      61  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         975        521      41  Vodafone-, EG
 20011         808        155     353  INTERNET-SOLUTIONS, ZA
 37069         639       1099      13  MOBINIL, EG
  6713         555       1861      35  IAM-AS, MA
 36914         517         82       3  KENET-AS, KE

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       11547       3236     509  UNINET, MX
 16509       10878      11911    3790  AMAZON-02, US
  9808       10077       8751      85  CHINAMOBILE-CN China Mobile Communication
 12479        7634       1709     143  UNI2-AS, ES
  7545        5977        840     656  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4872       4192      74  ERX-CERNET-BKB China Education and Resear
 39891        4668        282      60  ALJAWWALSTC-AS, SA
 11492        4660        310     547  CABLEONE, US
 18403        4529        347      23  FPT-AS-AP FPT Telecom Company, VN
   174        4452       8764     859  COGENT-174, 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       10077         9992  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7634         7491  UNI2-AS, ES
 16509       10878         7088  AMAZON-02, US
  7545        5977         5321  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4872         4798  ERX-CERNET-BKB China Education and Research Net
 39891        4668         4608  ALJAWWALSTC-AS, SA
 18403        4529         4506  FPT-AS-AP FPT Telecom Company, VN
 11492        4660         4113  CABLEONE, US
  7155        4166         4078  VIASAT-SP-BACKBONE, US
  7552        3966         3941  VIETEL-AS-AP Viettel Group, VN

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
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-D
     40493  UNALLOCATED  8.17.26.0/24              3356  LEVEL3, US
     46639  UNALLOCATED  8.17.66.0/24               701  UUNET, US
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
    393266  UNALLOCATED  8.23.52.0/24             46887  CROWNCASTLE-AS46887, US
    396894  UNALLOCATED  8.28.201.0/24            46887  CROWNCASTLE-AS46887, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             3356  LEVEL3, US
     46639  UNALLOCATED  8.38.73.0/24              3356  LEVEL3, 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
14.192.20.0/22       Origin:     26658  HENGTONG-IDC-LLC, US
14.192.20.0/22      Transit:      6939  HURRICANE, US
23.137.192.0/24      Origin:     31798  DATACITY, CA
23.137.192.0/24     Transit:     21949  BEANFIELD, CA
23.139.88.0/24       Origin:    397244  RESERVED, ZZ
23.139.88.0/24      Transit:     33387  NOCIX, US
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  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US

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       /9:16      /10:36      /11:91      /12:295     
/13:576     /14:1172    /15:2062    /16:13173   /17:8266    /18:13755   
/19:24580   /20:44956   /21:52240   /22:112343  /23:100217  /24:590187  
/25:731     /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        6701        7634  UNI2-AS, ES
  8151        5733       11547  UNINET, MX
 11492        3555        4660  CABLEONE, US
 39891        3428        4668  ALJAWWALSTC-AS, SA
  6327        3398        3603  SHAW, CA
  7155        3110        4166  VIASAT-SP-BACKBONE, US
 22773        2537        3406  ASN-CXA-ALL-CCI-22773-RDC, US
 16509        2220       10878  AMAZON-02, US
 30036        2178        2517  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2175        3546  Telmex Colombia S.A., CO

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

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

   1:2295      2:1543      3:501       4:8         5:4456      6:169    
   7:6         8:1519      9:1        11:172      12:1418     13:371    
  14:2468     15:330      16:264      17:358      18:893      20:430    
  21:4        22:188      23:6916     24:2646     25:2        27:2601   
  29:19       31:2880     32:47       34:70       35:141      36:2372   
  37:4524     38:8707     39:916      40:150      41:4117     42:2182   
  43:2455     44:332      45:17636    46:4652     47:301      49:2025   
  50:1875     51:581      52:1580     54:317      55:955      56:8      
  57:223      58:2261     59:1259     60:1139     61:2740     62:2806   
  63:1854     64:5409     65:2276     66:4656     67:2998     68:1333   
  69:4014     70:1129     71:570      72:2865     74:2787     75:1626   
  76:635      77:2580     78:1865     79:1647     80:2207     81:2029   
  82:1755     83:1378     84:1758     85:3083     86:979      87:2407   
  88:1263     89:4374     90:678      91:8253     92:2606     93:2809   
  94:3794     95:4318     96:1262     97:316      98:1074     99:739    
 100:72      101:1172    102:3452    103:32294   104:4461    105:702    
 106:985     107:2390    108:1173    109:4011    110:2202    111:3321   
 112:2051    113:1790    114:1936    115:2117    116:1991    117:2715   
 118:2880    119:1980    120:1896    121:1406    122:2709    123:2154   
 124:1639    125:2861    126:64      128:1416    129:933     130:1248   
 131:1843    132:819     133:444     134:1521    135:314     136:1234   
 137:1120    138:2874    139:1519    140:1466    141:1560    142:1783   
 143:1586    144:1030    145:392     146:2091    147:2053    148:2507   
 149:2821    150:1095    151:1377    152:2110    153:500     154:7011   
 155:1492    156:2570    157:1832    158:1204    159:2445    160:3212   
 161:1759    162:3562    163:1755    164:1933    165:2138    166:1309   
 167:1854    168:4074    169:789     170:4919    171:1024    172:3899   
 173:3115    174:909     175:1256    176:3469    177:4729    178:3563   
 179:2217    180:2499    181:3912    182:3320    183:2053    184:2253   
 185:21164   186:5015    187:4215    188:4252    189:4044    190:9631   
 191:1517    192:11090   193:9278    194:7608    195:5416    196:3230   
 197:3365    198:6052    199:8179    200:8108    201:6239    202:10542  
 203:10380   204:4631    205:3681    206:4624    207:3693    208:4206   
 209:5176    210:4778    211:2671    212:4495    213:3643    214:1071   
 215:48      216:6631    217:3026    218:1382    219:557     220:2069   
 221:1047    222:838     223:2284   

End of report



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