[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 29 18:02:15 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 30 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: 941345
Prefixes after maximum aggregation (per Origin AS): 359528
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 458844
Total ASes present in the Internet Routing Table: 75602
Prefixes per ASN: 12.45
Origin-only ASes present in the Internet Routing Table: 64819
Origin ASes announcing only one prefix: 26589
Transit ASes present in the Internet Routing Table: 10783
Transit-only ASes present in the Internet Routing Table: 508
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: 1062
Number of instances of unregistered ASNs: 1064
Number of 32-bit ASNs allocated by the RIRs: 43966
Number of 32-bit ASNs visible in the Routing Table: 36132
Prefixes from 32-bit ASNs in the Routing Table: 183764
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: 587
Number of addresses announced to Internet: 3028684160
Equivalent to 180 /8s, 134 /16s and 13 /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: 310572
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 249547
Total APNIC prefixes after maximum aggregation: 73255
APNIC Deaggregation factor: 3.41
Prefixes being announced from the APNIC address blocks: 242115
Unique aggregates announced from the APNIC address blocks: 100102
APNIC Region origin ASes present in the Internet Routing Table: 14081
APNIC Prefixes per ASN: 17.19
APNIC Region origin ASes announcing only one prefix: 4264
APNIC Region transit ASes present in the Internet Routing Table: 1876
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 35
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9458
Number of APNIC addresses announced to Internet: 760858496
Equivalent to 45 /8s, 89 /16s and 199 /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: 274731
Total ARIN prefixes after maximum aggregation: 124158
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 279459
Unique aggregates announced from the ARIN address blocks: 132739
ARIN Region origin ASes present in the Internet Routing Table: 19129
ARIN Prefixes per ASN: 14.61
ARIN Region origin ASes announcing only one prefix: 6962
ARIN Region transit ASes present in the Internet Routing Table: 1989
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: 4874
Number of ARIN addresses announced to Internet: 1269705728
Equivalent to 75 /8s, 174 /16s and 44 /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: 263969
Total RIPE prefixes after maximum aggregation: 126443
RIPE Deaggregation factor: 2.09
Prefixes being announced from the RIPE address blocks: 258872
Unique aggregates announced from the RIPE address blocks: 162858
RIPE Region origin ASes present in the Internet Routing Table: 28590
RIPE Prefixes per ASN: 9.05
RIPE Region origin ASes announcing only one prefix: 12116
RIPE Region transit ASes present in the Internet Routing Table: 3979
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11690
Number of RIPE addresses announced to Internet: 714742272
Equivalent to 42 /8s, 154 /16s and 26 /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: 121296
Total LACNIC prefixes after maximum aggregation: 28829
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 119615
Unique aggregates announced from the LACNIC address blocks: 49629
LACNIC Region origin ASes present in the Internet Routing Table: 11067
LACNIC Prefixes per ASN: 10.81
LACNIC Region origin ASes announcing only one prefix: 2600
LACNIC Region transit ASes present in the Internet Routing Table: 2386
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: 8924
Number of LACNIC addresses announced to Internet: 177276416
Equivalent to 10 /8s, 145 /16s and 6 /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: 30740
Total AfriNIC prefixes after maximum aggregation: 6143
AfriNIC Deaggregation factor: 5.00
Prefixes being announced from the AfriNIC address blocks: 40697
Unique aggregates announced from the AfriNIC address blocks: 13047
AfriNIC Region origin ASes present in the Internet Routing Table: 1818
AfriNIC Prefixes per ASN: 22.39
AfriNIC Region origin ASes announcing only one prefix: 647
AfriNIC Region transit ASes present in the Internet Routing Table: 358
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1186
Number of AfriNIC addresses announced to Internet: 105790976
Equivalent to 6 /8s, 78 /16s and 62 /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 9835 8742 66 CHINAMOBILE-CN China Mobile Communicati
7545 5660 777 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4934 4192 76 ERX-CERNET-BKB China Education and Rese
7552 3857 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3595 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3525 495 254 BBIL-AP BHARTI Airtel Ltd., IN
45899 3289 1872 98 VNPT-AS-VN VNPT Corp, VN
24560 2766 863 367 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2310 11259 574 KIXS-AS-KR Korea Telecom, KR
4755 2196 434 196 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 9794 11363 3389 AMAZON-02, US
11492 4596 305 619 CABLEONE, US
7155 4170 287 89 VIASAT-SP-BACKBONE, US
6327 3604 1320 75 SHAW, CA
22773 3525 3046 239 ASN-CXA-ALL-CCI-22773-RDC, US
174 3408 6652 704 COGENT-174, US
749 3189 54916 2441 DNIC-AS-00749, US
16625 3167 1361 2257 AKAMAI-AS, US
367 2889 3596 1368 DNIC-ASBLK-00306-00371, US
396982 2763 3641 412 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 7675 1709 144 UNI2-AS, ES
39891 4758 286 60 ALJAWWALSTC-AS, SA
20940 3873 3396 128 AKAMAI-ASN1, NL
9009 3259 283 1595 M247, RO
12389 2979 2303 903 ROSTELECOM-AS, RU
8551 2648 368 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2341 363 589 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
8452 1528 1852 14 TE-AS TE-AS, EG
44477 1499 98 710 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 12336 3314 487 UNINET, MX
10620 3527 497 888 Telmex Colombia S.A., CO
13999 2515 342 655 Mega Cable, S.A. de C.V., MX
11830 2004 369 64 Instituto Costarricense de Electricidad
28573 1343 2319 241 Claro NXT Telecomunicacoes Ltda, BR
3816 1313 788 194 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1148 179 424 Techtel LMDS Comunicaciones Interactiva
6503 1103 346 480 Axtel, S.A.B. de C.V., MX
6147 1088 369 22 Telefonica del Peru S.A.A., PE
26615 1067 2503 53 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
24835 1549 545 28 RAYA-AS, EG
24863 1502 389 20 LINKdotNET-AS, EG
36992 1367 1519 283 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1207 76 61 ORANGE-COTE-IVOIRE, CI
36935 935 521 42 Vodafone-, EG
6713 554 1861 34 IAM-AS, MA
15399 536 56 54 WANANCHI-, KE
36914 488 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 12336 3314 487 UNINET, MX
9808 9835 8742 66 CHINAMOBILE-CN China Mobile Communicati
16509 9794 11363 3389 AMAZON-02, US
12479 7675 1709 144 UNI2-AS, ES
7545 5660 777 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4934 4192 76 ERX-CERNET-BKB China Education and Rese
39891 4758 286 60 ALJAWWALSTC-AS, SA
11492 4596 305 619 CABLEONE, US
7155 4170 287 89 VIASAT-SP-BACKBONE, US
20940 3873 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 9835 9769 CHINAMOBILE-CN China Mobile Communications Grou
12479 7675 7531 UNI2-AS, ES
16509 9794 6405 AMAZON-02, US
7545 5660 4986 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4934 4858 ERX-CERNET-BKB China Education and Research Net
39891 4758 4698 ALJAWWALSTC-AS, SA
7155 4170 4081 VIASAT-SP-BACKBONE, US
11492 4596 3977 CABLEONE, US
7552 3857 3837 VIETEL-AS-AP Viettel Group, VN
20940 3873 3745 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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, 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
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
27.0.192.0/22 Origin: 138415 HENGDA-HK HENGDA NETWORK LIMITED, HK
27.0.192.0/22 Transit: 51847 NEAROUTE, HK
27.0.192.0/24 Origin: 138195 MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.192.0/24 Transit: 3786 LGDACOM LG DACOM Corporation, KR
27.0.193.0/24 Origin: 138195 MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.193.0/24 Transit: 3786 LGDACOM LG DACOM Corporation, KR
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 /12:297
/13:583 /14:1195 /15:2072 /16:13298 /17:8249 /18:13741
/19:24860 /20:44022 /21:51615 /22:111082 /23:98475 /24:570968
/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 6792 7675 UNI2-AS, ES
8151 6361 12336 UNINET, MX
11492 3509 4596 CABLEONE, US
39891 3440 4758 ALJAWWALSTC-AS, SA
6327 3401 3604 SHAW, CA
7155 3114 4170 VIASAT-SP-BACKBONE, US
22773 2615 3525 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2149 2493 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2133 3527 Telmex Colombia S.A., CO
8551 2124 2648 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)
----------------------------------------------
1:1641 2:1491 3:320 4:6 5:4519 6:162
7:6 8:1527 9:1 11:172 12:1468 13:378
14:2395 15:318 16:210 17:369 18:757 20:356
21:4 22:188 23:6661 24:2710 25:2 27:2565
29:19 31:2653 32:49 34:61 35:126 36:2241
37:4490 38:7173 39:894 40:125 41:4067 42:984
43:2347 44:315 45:16981 46:4405 47:299 49:1944
50:1898 51:573 52:1583 54:307 55:890 56:5
57:166 58:1882 59:1246 60:1028 61:2586 62:2694
63:1906 64:5533 65:2320 66:4729 67:3058 68:1336
69:4086 70:1196 71:575 72:2906 74:2585 75:1550
76:631 77:2427 78:1848 79:2479 80:2182 81:1934
82:1546 83:1314 84:1647 85:3117 86:832 87:2271
88:1240 89:4016 90:679 91:8075 92:2199 93:2643
94:3673 95:4159 96:1306 97:312 98:1040 99:743
100:92 101:1181 102:3071 103:32545 104:4787 105:635
106:941 107:2738 108:1119 109:4060 110:2141 111:3271
112:2072 113:1567 114:1788 115:2001 116:1893 117:2616
118:2382 119:1960 120:1809 121:1328 122:2678 123:2246
124:1621 125:2877 126:32 128:1484 129:938 130:1094
131:1849 132:801 133:410 134:1722 135:316 136:945
137:1059 138:2812 139:1559 140:1392 141:1361 142:1608
143:1492 144:1010 145:347 146:2030 147:1736 148:2478
149:2583 150:1019 151:1337 152:1978 153:523 154:6194
155:1422 156:2217 157:1662 158:1075 159:2296 160:2604
161:1643 162:3597 163:1716 164:1634 165:2126 166:1073
167:1767 168:3923 169:794 170:4727 171:1025 172:3830
173:3045 174:906 175:1202 176:3677 177:4682 178:3580
179:2264 180:2365 181:3666 182:3421 183:1807 184:2267
185:20652 186:4932 187:4462 188:4040 189:4073 190:9302
191:1496 192:11003 193:9062 194:7447 195:5265 196:3152
197:2388 198:6011 199:7552 200:7992 201:6311 202:10491
203:10192 204:4566 205:3758 206:4500 207:3497 208:4131
209:5037 210:4652 211:2579 212:4287 213:3386 214:1088
215:50 216:6777 217:2813 218:1362 219:581 220:2046
221:1031 222:876 223:2237
End of report
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