[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Mar 15 15:02:30 -03 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 en lists.apnic.net.

For historical data, please see https://thyme.apnic.net.

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

IPv4 Routing Table Report   04:00 +10GMT Sat 16 Mar, 2024

  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:                              938832
    Prefixes after maximum aggregation (per Origin AS):          359054
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      458136
Total ASes present in the Internet Routing Table:                 75465
    Prefixes per ASN:                                             12.44
Origin-only ASes present in the Internet Routing Table:           64728
Origin ASes announcing only one prefix:                           26585
Transit ASes present in the Internet Routing Table:               10737
Transit-only ASes present in the Internet Routing Table:            488
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      55
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:              1087
    Number of instances of unregistered ASNs:                      1089
Number of 32-bit ASNs allocated by the RIRs:                      43832
Number of 32-bit ASNs visible in the Routing Table:               35997
Prefixes from 32-bit ASNs in the Routing Table:                  182589
Number of bogon 32-bit ASNs visible in the Routing Table:            19
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            569
Number of addresses announced to Internet:                   3026729344
    Equivalent to 180 /8s, 104 /16s and 57 /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:      309574

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

Prefixes being announced by APNIC Region ASes:                   248975
    Total APNIC prefixes after maximum aggregation:               73037
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          241635
    Unique aggregates announced from the APNIC address blocks:    99927
APNIC Region origin ASes present in the Internet Routing Table:   14046
    APNIC Prefixes per ASN:                                       17.20
APNIC Region origin ASes announcing only one prefix:               4252
APNIC Region transit ASes present in the Internet Routing Table:   1882
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9417
Number of APNIC addresses announced to Internet:              760791168
    Equivalent to 45 /8s, 88 /16s and 192 /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:                    274840
    Total ARIN prefixes after maximum aggregation:               124033
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           279590
    Unique aggregates announced from the ARIN address blocks:    132782
ARIN Region origin ASes present in the Internet Routing Table:    19110
    ARIN Prefixes per ASN:                                        14.63
ARIN Region origin ASes announcing only one prefix:                6944
ARIN Region transit ASes present in the Internet Routing Table:    1982
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4859
Number of ARIN addresses announced to Internet:              1269831680
    Equivalent to 75 /8s, 176 /16s and 24 /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:                    263654
    Total RIPE prefixes after maximum aggregation:               126198
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           258410
    Unique aggregates announced from the RIPE address blocks:    162493
RIPE Region origin ASes present in the Internet Routing Table:    28583
    RIPE Prefixes per ASN:                                         9.04
RIPE Region origin ASes announcing only one prefix:               12134
RIPE Region transit ASes present in the Internet Routing Table:    3969
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          40
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11657
Number of RIPE addresses announced to Internet:               714437376
    Equivalent to 42 /8s, 149 /16s and 115 /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:                  120918
    Total LACNIC prefixes after maximum aggregation:              28941
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         119318
    Unique aggregates announced from the LACNIC address blocks:   49534
LACNIC Region origin ASes present in the Internet Routing Table:  11068
    LACNIC Prefixes per ASN:                                      10.78
LACNIC Region origin ASes announcing only one prefix:              2621
LACNIC Region transit ASes present in the Internet Routing Table:  2378
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8928
Number of LACNIC addresses announced to Internet:             177196288
    Equivalent to 10 /8s, 143 /16s and 205 /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:                  29358
    Total AfriNIC prefixes after maximum aggregation:              6123
    AfriNIC Deaggregation factor:                                  4.79
Prefixes being announced from the AfriNIC address blocks:         39310
    Unique aggregates announced from the AfriNIC address blocks:  12951
AfriNIC Region origin ASes present in the Internet Routing Table:  1761
    AfriNIC Prefixes per ASN:                                     22.32
AfriNIC Region origin ASes announcing only one prefix:              634
AfriNIC Region transit ASes present in the Internet Routing Table:  342
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1136
Number of AfriNIC addresses announced to Internet:            104170240
    Equivalent to 6 /8s, 53 /16s and 131 /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        9833       8740      57  CHINAMOBILE-CN China Mobile Communicati
  7545        5654        777     672  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3839       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3592       1043      64  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        3512        495     249  BBIL-AP BHARTI Airtel Ltd., IN
 45899        3293       1872      98  VNPT-AS-VN VNPT Corp, VN
 24560        2760        864     359  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2311      11259     574  KIXS-AS-KR Korea Telecom, KR
  4755        2190        434     194  TATACOMM-AS TATA Communications formerl

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        9748      11339    3362  AMAZON-02, US
 11492        4587        304     634  CABLEONE, US
  7155        4181        288      96  VIASAT-SP-BACKBONE, US
 22773        3611       3063     302  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3597       1320      75  SHAW, CA
   174        3346       6645     679  COGENT-174, US
 16625        3210       1393    2290  AKAMAI-AS, US
   749        3192      54919    2444  DNIC-AS-00749, US
   367        2919       3632    1402  DNIC-ASBLK-00306-00371, US
396982        2758       3640     406  GOOGLE-CLOUD-PLATFORM, 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        7670       1714     147  UNI2-AS, ES
 39891        4625        278      64  ALJAWWALSTC-AS, SA
 20940        3876       3396     128  AKAMAI-ASN1, NL
  9009        3248        282    1578  M247, RO
 12389        2967       2303     901  ROSTELECOM-AS, RU
  8551        2651        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2346        363     589  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
  8452        1519       1852      14  TE-AS TE-AS, EG
 44477        1492         98     712  STARK-INDUSTRIES, GB

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       12244       3324     498  UNINET, MX
 10620        3525        496     891  Telmex Colombia S.A., CO
 13999        2509        340     652  Mega Cable, S.A. de C.V., MX
 11830        2000        369      64  Instituto Costarricense de Electricidad
 28573        1343       2319     241  Claro NXT Telecomunicacoes Ltda, BR
  3816        1311        787     198  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6503        1195        348     491  Axtel, S.A.B. de C.V., MX
 11664        1143        179     425  Techtel LMDS Comunicaciones Interactiva
  6147        1089        369      22  Telefonica del Peru S.A.A., PE
 22884        1068        114     377  TOTAL PLAY TELECOMUNICACIONES SA DE CV,

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        1549        545      28  RAYA-AS, EG
 24863        1504        389      20  LINKdotNET-AS, EG
 36992        1369       1519     282  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 36935         935        521      42  Vodafone-, EG
 29571         633         58     180  ORANGE-COTE-IVOIRE, CI
  6713         553       1861      34  IAM-AS, MA
 15399         527         55      54  WANANCHI-, KE
 36914         494         82       3  KENET-AS, KE
 24757         428         73       5  EthioNet-AS, ET

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       12244       3324     498  UNINET, MX
  9808        9833       8740      57  CHINAMOBILE-CN China Mobile Communicati
 16509        9748      11339    3362  AMAZON-02, US
 12479        7670       1714     147  UNI2-AS, ES
  7545        5654        777     672  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932       4192      75  ERX-CERNET-BKB China Education and Rese
 39891        4625        278      64  ALJAWWALSTC-AS, SA
 11492        4587        304     634  CABLEONE, US
  7155        4181        288      96  VIASAT-SP-BACKBONE, US
 20940        3876       3396     128  AKAMAI-ASN1, NL

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

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

   ASN  No of nets  Net Savings  Description
  9808        9833         9776  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7670         7523  UNI2-AS, ES
 16509        9748         6386  AMAZON-02, US
  7545        5654         4982  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932         4857  ERX-CERNET-BKB China Education and Research Net
 39891        4625         4561  ALJAWWALSTC-AS, SA
  7155        4181         4085  VIASAT-SP-BACKBONE, US
 11492        4587         3953  CABLEONE, US
  7552        3839         3819  VIETEL-AS-AP Viettel Group, VN
 20940        3876         3748  AKAMAI-ASN1, NL

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
     65536  DOCUMENT     5.102.30.0/24            65512  -Private Use AS-, ZZ
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     40493  UNALLOCATED  8.17.26.0/24              3356  LEVEL3, US
     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  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             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  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.176.160.0/24      Origin:    397327  RESERVED, ZZ
23.176.160.0/24     Transit:     19108  SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24      Origin:     27593  RESERVED, ZZ
23.189.192.0/24     Transit:       174  COGENT-174, US
27.0.192.0/24        Origin:    138195  MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.192.0/24       Transit:      6939  HURRICANE, 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       /9:14      /10:37      /11:95      /12:296     
/13:578     /14:1189    /15:2064    /16:13280   /17:8217    /18:13728   
/19:24845   /20:44015   /21:51452   /22:110907  /23:98442   /24:568911  
/25:746     /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        6783        7670  UNI2-AS, ES
  8151        6300       12244  UNINET, MX
 11492        3500        4587  CABLEONE, US
  6327        3394        3597  SHAW, CA
 39891        3311        4625  ALJAWWALSTC-AS, SA
  7155        3125        4181  VIASAT-SP-BACKBONE, US
 22773        2647        3611  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2163        2507  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2131        3525  Telmex Colombia S.A., CO
  8551        2127        2651  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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

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

   1:1635      2:1570      3:313       4:6         5:4423      6:162    
   7:6         8:1525      9:1        11:172      12:1467     13:381    
  14:2407     15:315      16:210      17:370      18:753      20:355    
  21:4        22:188      23:6629     24:2712     25:2        27:2577   
  29:19       31:2626     32:49       34:59       35:126      36:2194   
  37:4494     38:7384     39:894      40:125      41:3855     42:983    
  43:2340     44:314      45:16913    46:4377     47:297      49:1936   
  50:1908     51:572      52:1587     54:312      55:970      56:5      
  57:154      58:1879     59:1182     60:1024     61:2586     62:2700   
  63:1907     64:5522     65:2314     66:4716     67:3055     68:1329   
  69:4076     70:1198     71:572      72:2900     74:2591     75:1550   
  76:632      77:2411     78:1844     79:2476     80:2152     81:1936   
  82:1508     83:1284     84:1651     85:3101     86:826      87:2254   
  88:1235     89:4024     90:682      91:8004     92:2189     93:2637   
  94:3642     95:4099     96:1298     97:312      98:1044     99:741    
 100:92      101:1175    102:2983    103:32540   104:4770    105:553    
 106:921     107:2765    108:1134    109:4074    110:2144    111:3240   
 112:2071    113:1559    114:1784    115:1988    116:1894    117:2614   
 118:2382    119:1957    120:1812    121:1333    122:2695    123:2229   
 124:1607    125:2869    126:28      128:1502    129:869     130:1090   
 131:1812    132:814     133:410     134:1716    135:311     136:948    
 137:1052    138:2817    139:1569    140:1378    141:1362    142:1561   
 143:1486    144:1021    145:346     146:2017    147:1718    148:2491   
 149:2574    150:1092    151:1334    152:1978    153:524     154:5882   
 155:1377    156:2253    157:1606    158:1102    159:2243    160:2266   
 161:1638    162:3594    163:1714    164:1614    165:2103    166:1076   
 167:1765    168:3948    169:786     170:4712    171:1018    172:3817   
 173:3041    174:910     175:1216    176:3656    177:4507    178:3592   
 179:2239    180:2363    181:3661    182:3410    183:1806    184:2265   
 185:20643   186:4923    187:4421    188:4016    189:4096    190:9314   
 191:1457    192:11005   193:9043    194:7449    195:5258    196:3085   
 197:2561    198:6021    199:7496    200:7985    201:6201    202:10491  
 203:10164   204:4576    205:3752    206:4497    207:3540    208:4151   
 209:5049    210:4658    211:2569    212:4296    213:3393    214:1104   
 215:43      216:6769    217:2805    218:1362    219:580     220:2057   
 221:1030    222:875     223:2232   

End of report


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