[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Nov 1 18:02:39 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 02 Nov, 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:                              966387
    Prefixes after maximum aggregation (per Origin AS):          367550
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      469509
    Number of IPv4 prefixes with a valid ROA:                    319991
    Number of IPv4 prefixes with an invalid ROA:                   1195
    Number of IPv4 prefixes with no ROA:                         645201
Total ASes present in the Internet Routing Table:                 76413
    Prefixes per ASN:                                             12.65
Origin-only ASes present in the Internet Routing Table:           65461
Origin ASes announcing only one prefix:                           26839
Transit ASes present in the Internet Routing Table:               10952
Transit-only ASes present in the Internet Routing Table:            527
Average AS path length visible in the Internet Routing Table:       5.3
    Max AS path length visible:                                      56
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:               985
    Number of instances of unregistered ASNs:                       999
Number of 32-bit ASNs allocated by the RIRs:                      45690
Number of 32-bit ASNs visible in the Routing Table:               37368
Prefixes from 32-bit ASNs in the Routing Table:                  194235
Number of bogon 32-bit ASNs visible in the Routing Table:            59
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            527
Number of addresses announced to Internet:                   3027561472
    Equivalent to 180 /8s, 116 /16s and 236 /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:      315863

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

Prefixes being announced by APNIC Region ASes:                   258131
    Total APNIC prefixes after maximum aggregation:               75713
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          249992
    Unique aggregates announced from the APNIC address blocks:   101376
APNIC Region origin ASes present in the Internet Routing Table:   14432
    APNIC Prefixes per ASN:                                       17.32
APNIC Region origin ASes announcing only one prefix:               4401
APNIC Region transit ASes present in the Internet Routing Table:   1901
Average APNIC Region AS path length visible:                        5.5
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9867
Number of APNIC addresses announced to Internet:              756798080
    Equivalent to 45 /8s, 27 /16s and 210 /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:                    282780
    Total ARIN prefixes after maximum aggregation:               126258
    ARIN Deaggregation factor:                                     2.24
Prefixes being announced from the ARIN address blocks:           285603
    Unique aggregates announced from the ARIN address blocks:    135775
ARIN Region origin ASes present in the Internet Routing Table:    19195
    ARIN Prefixes per ASN:                                        14.88
ARIN Region origin ASes announcing only one prefix:                6978
ARIN Region transit ASes present in the Internet Routing Table:    2010
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          36
Number of ARIN region 32-bit ASNs visible in the Routing Table:    5060
Number of ARIN addresses announced to Internet:              1267018496
    Equivalent to 75 /8s, 133 /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, 393216-402332
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:                    268526
    Total RIPE prefixes after maximum aggregation:               129792
    RIPE Deaggregation factor:                                     2.07
Prefixes being announced from the RIPE address blocks:           265469
    Unique aggregates announced from the RIPE address blocks:    168869
RIPE Region origin ASes present in the Internet Routing Table:    28799
    RIPE Prefixes per ASN:                                         9.22
RIPE Region origin ASes announcing only one prefix:               12136
RIPE Region transit ASes present in the Internet Routing Table:    3983
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:   12100
Number of RIPE addresses announced to Internet:               722111360
    Equivalent to 43 /8s, 10 /16s and 139 /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:                  122977
    Total LACNIC prefixes after maximum aggregation:              28570
    LACNIC Deaggregation factor:                                   4.30
Prefixes being announced from the LACNIC address blocks:         120501
    Unique aggregates announced from the LACNIC address blocks:   48600
LACNIC Region origin ASes present in the Internet Routing Table:  11167
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2633
LACNIC Region transit ASes present in the Internet Routing Table:  2483
Average LACNIC Region AS path length visible:                       6.0
    Max LACNIC Region AS path length visible:                        56
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  9083
Number of LACNIC addresses announced to Internet:             177433856
    Equivalent to 10 /8s, 147 /16s and 109 /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:                  32988
    Total AfriNIC prefixes after maximum aggregation:              6572
    AfriNIC Deaggregation factor:                                  5.02
Prefixes being announced from the AfriNIC address blocks:         44295
    Unique aggregates announced from the AfriNIC address blocks:  14445
AfriNIC Region origin ASes present in the Internet Routing Table:  1899
    AfriNIC Prefixes per ASN:                                     23.33
AfriNIC Region origin ASes announcing only one prefix:              691
AfriNIC Region transit ASes present in the Internet Routing Table:  368
Average AfriNIC Region AS path length visible:                      5.9
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1258
Number of AfriNIC addresses announced to Internet:            103918592
    Equivalent to 6 /8s, 49 /16s and 172 /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       10088       8753      88  CHINAMOBILE-CN China Mobile Communication
  7545        6062        840     654  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4872       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4261        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3908       1331      25  VIETEL-AS-AP Viettel Group, VN
  9498        3853        513     267  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3653       1036      71  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3261       1869      99  VNPT-AS-VN VNPT Corp, VN
 24560        2785        830     542  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2287      11520     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       11003      11932    3878  AMAZON-02, US
 11492        4661        310     548  CABLEONE, US
   174        4439       8755     825  COGENT-174, US
  7155        4163        287      85  VIASAT-SP-BACKBONE, US
  6327        3605       1320      79  SHAW, CA
 22773        3416       3035     188  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3262      54896    2509  DNIC-AS-00749, US
  7018        3150      23660    1977  ATT-INTERNET4, US
396982        2865       3654     419  GOOGLE-CLOUD-PLATFORM, US
 16625        2851       1245    2124  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        7647       1709     143  UNI2-AS, ES
 39891        4720        289      58  ALJAWWALSTC-AS, SA
 20940        3879       3395     129  AKAMAI-ASN1, NL
  9009        3699        319    1885  M247, RO
 12389        2949       2295     880  ROSTELECOM-AS, RU
 34984        2342        359     579  TELLCOM-AS, TR
212238        1848        135    1366  CDNEXT, GB
 13188        1606        100      30  TRIOLAN, UA
  8452        1568       1852      14  TE-AS TE-AS, EG
  8551        1474        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       11437       3224     542  UNINET, MX
 10620        3543        494     943  Telmex Colombia S.A., CO
 13999        2534        532     359  Mega Cable, S.A. de C.V., MX
 11830        2007        369      64  Instituto Costarricense de Electricidad y
 28573        1338       2310     261  Claro NXT Telecomunicacoes Ltda, BR
  3816        1322        779     201  COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
  6503        1160        374     163  Axtel, S.A.B. de C.V., MX
 11664        1152        278      33  Techtel LMDS Comunicaciones Interactivas 
  6147        1112        369      22  Telefonica del Peru S.A.A., PE
 22884        1064         97     371  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        1627        593      29  RAYA-AS, EG
 24863        1619        389      16  LINKdotNET-AS, EG
 36992        1421       1519     283  ETISALAT-MISR, EG
 29571        1370         87      58  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         986        523      45  Vodafone-, EG
 20011         781        153     343  INTERNET-SOLUTIONS, ZA
 37069         590       1099      13  MOBINIL, EG
  6713         556       1861      35  IAM-AS, MA
 36914         521         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       11437       3224     542  UNINET, MX
 16509       11003      11932    3878  AMAZON-02, US
  9808       10088       8753      88  CHINAMOBILE-CN China Mobile Communication
 12479        7647       1709     143  UNI2-AS, ES
  7545        6062        840     654  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4872       4192      74  ERX-CERNET-BKB China Education and Resear
 39891        4720        289      58  ALJAWWALSTC-AS, SA
 11492        4661        310     548  CABLEONE, US
   174        4439       8755     825  COGENT-174, US
 18403        4261        347      23  FPT-AS-AP FPT Telecom Company, VN

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

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

   ASN  No of nets  Net Savings  Description
  9808       10088        10000  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7647         7504  UNI2-AS, ES
 16509       11003         7125  AMAZON-02, US
  7545        6062         5408  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4872         4798  ERX-CERNET-BKB China Education and Research Net
 39891        4720         4662  ALJAWWALSTC-AS, SA
 18403        4261         4238  FPT-AS-AP FPT Telecom Company, VN
 11492        4661         4113  CABLEONE, US
  7155        4163         4078  VIASAT-SP-BACKBONE, US
  7552        3908         3883  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
     65538  DOCUMENT     2.135.152.0/22            9198  KAZTELECOM-AS, KZ
     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

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
23.139.88.0/24       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
23.152.48.0/24       Origin:     46167  RESERVED, ZZ
23.152.48.0/24      Transit:      7018  ATT-INTERNET4, 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     /14:1170    /15:2059    /16:13177   /17:8260    /18:13768   
/19:24584   /20:44902   /21:52281   /22:112253  /23:100292  /24:591885  
/25:726     /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        6695        7647  UNI2-AS, ES
  8151        5654       11437  UNINET, MX
 11492        3555        4661  CABLEONE, US
 39891        3412        4720  ALJAWWALSTC-AS, SA
  6327        3400        3605  SHAW, CA
  7155        3107        4163  VIASAT-SP-BACKBONE, US
 22773        2546        3416  ASN-CXA-ALL-CCI-22773-RDC, US
 16509        2249       11003  AMAZON-02, US
 30036        2191        2530  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2173        3543  Telmex Colombia S.A., CO

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

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

   1:2288      2:1553      3:511       4:8         5:4426      6:169    
   7:6         8:1509      9:1        11:172      12:1420     13:371    
  14:2494     15:331      16:265      17:359      18:901      20:441    
  21:4        22:188      23:6955     24:2650     25:2        27:2599   
  29:19       31:2962     32:47       34:70       35:143      36:2369   
  37:4452     38:8824     39:917      40:149      41:4077     42:2037   
  43:2471     44:328      45:17756    46:4710     47:300      49:2027   
  50:1859     51:580      52:1581     54:313      55:952      56:8      
  57:224      58:2256     59:1269     60:1149     61:2741     62:2832   
  63:1846     64:5386     65:2274     66:4648     67:2990     68:1332   
  69:4006     70:1127     71:573      72:2854     74:2793     75:1631   
  76:638      77:2583     78:1878     79:1662     80:2205     81:2034   
  82:1790     83:1387     84:1764     85:3119     86:967      87:2411   
  88:1247     89:4366     90:701      91:8268     92:2610     93:2812   
  94:3823     95:4284     96:1265     97:314      98:1070     99:738    
 100:73      101:1169    102:3369    103:32293   104:4418    105:705    
 106:987     107:2396    108:1172    109:4061    110:2224    111:3317   
 112:2046    113:1758    114:1938    115:2138    116:1991    117:2706   
 118:2848    119:1982    120:1893    121:1410    122:2719    123:2159   
 124:1639    125:2858    126:64      128:1361    129:941     130:1253   
 131:1877    132:811     133:446     134:1527    135:315     136:1262   
 137:1135    138:2859    139:1540    140:1479    141:1567    142:1812   
 143:1609    144:1024    145:399     146:2107    147:2053    148:2535   
 149:2827    150:1124    151:1443    152:2114    153:499     154:7125   
 155:1542    156:2911    157:1839    158:1216    159:2439    160:3270   
 161:1740    162:3567    163:1770    164:1935    165:2132    166:1338   
 167:1845    168:4097    169:787     170:4986    171:997     172:3913   
 173:3129    174:912     175:1250    176:3486    177:4811    178:3651   
 179:2215    180:2520    181:3921    182:3322    183:2030    184:2269   
 185:21187   186:5031    187:4241    188:4233    189:4158    190:9553   
 191:1513    192:11203   193:9272    194:7622    195:5378    196:3218   
 197:3324    198:6033    199:8207    200:8143    201:6283    202:10567  
 203:10427   204:4664    205:3679    206:4633    207:3648    208:4226   
 209:5154    210:4789    211:2679    212:4515    213:3642    214:1048   
 215:48      216:6653    217:3030    218:1383    219:556     220:2081   
 221:1050    222:837     223:2319   

End of report


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