[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Nov 19 18:02:49 UTC 2021
This is an automated weekly mailing describing the state of the Gobal
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>.
Global IPv4 Routing Table Report 04:00 +10GMT Sat 20 Nov, 2021
BGP Table as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 872856
Prefixes after maximum aggregation (per Origin AS): 330492
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 421731
Number of IPv4 prefixes with ROAs (including AS0): 246471
Total ASes present in the Internet Routing Table: 72340
Prefixes per ASN: 12.07
Origin-only ASes present in the Internet Routing Table: 62111
Origin ASes announcing only one prefix: 25668
Transit ASes present in the Internet Routing Table: 10229
Transit-only ASes present in the Internet Routing Table: 352
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 878
Number of instances of unregistered ASNs: 882
Number of 32-bit ASNs allocated by the RIRs: 37870
Number of 32-bit ASNs visible in the Routing Table: 31435
Prefixes from 32-bit ASNs in the Routing Table: 145259
Number of bogon 32-bit ASNs visible in the Routing Table: 24
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 465
Number of addresses announced to Internet: 3072198144
Equivalent to 183 /8s, 30 /16s and 6 /24s
Percentage of available address space announced: 83.0
Percentage of allocated address space announced: 83.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 291082
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 232212
Total APNIC prefixes after maximum aggregation: 65445
APNIC Deaggregation factor: 3.55
Prefixes being announced from the APNIC address blocks: 227157
Unique aggregates announced from the APNIC address blocks: 92991
APNIC Region origin ASes present in the Internet Routing Table: 12127
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 3474
APNIC Region transit ASes present in the Internet Routing Table: 1708
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7303
Number of APNIC addresses announced to Internet: 773359744
Equivalent to 46 /8s, 24 /16s and 136 /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, 131072-151865
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: 255961
Total ARIN prefixes after maximum aggregation: 118338
ARIN Deaggregation factor: 2.16
Prefixes being announced from the ARIN address blocks: 256057
Unique aggregates announced from the ARIN address blocks: 122695
ARIN Region origin ASes present in the Internet Routing Table: 18942
ARIN Prefixes per ASN: 13.52
ARIN Region origin ASes announcing only one prefix: 6861
ARIN Region transit ASes present in the Internet Routing Table: 1958
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4218
Number of ARIN addresses announced to Internet: 1301555200
Equivalent to 77 /8s, 148 /16s and 40 /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: 243315
Total RIPE prefixes after maximum aggregation: 113789
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 239527
Unique aggregates announced from the RIPE address blocks: 146747
RIPE Region origin ASes present in the Internet Routing Table: 28151
RIPE Prefixes per ASN: 8.51
RIPE Region origin ASes announcing only one prefix: 12149
RIPE Region transit ASes present in the Internet Routing Table: 3930
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10536
Number of RIPE addresses announced to Internet: 712340352
Equivalent to 42 /8s, 117 /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
196608-213403
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: 113589
Total LACNIC prefixes after maximum aggregation: 26963
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 114475
Unique aggregates announced from the LACNIC address blocks: 47550
LACNIC Region origin ASes present in the Internet Routing Table: 10803
LACNIC Prefixes per ASN: 10.60
LACNIC Region origin ASes announcing only one prefix: 2630
LACNIC Region transit ASes present in the Internet Routing Table: 2138
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8474
Number of LACNIC addresses announced to Internet: 176342528
Equivalent to 10 /8s, 130 /16s and 198 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 26901
Total AfriNIC prefixes after maximum aggregation: 5279
AfriNIC Deaggregation factor: 5.10
Prefixes being announced from the AfriNIC address blocks: 35175
Unique aggregates announced from the AfriNIC address blocks: 11337
AfriNIC Region origin ASes present in the Internet Routing Table: 1578
AfriNIC Prefixes per ASN: 22.29
AfriNIC Region origin ASes announcing only one prefix: 554
AfriNIC Region transit ASes present in the Internet Routing Table: 312
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 904
Number of AfriNIC addresses announced to Internet: 108325632
Equivalent to 6 /8s, 116 /16s and 235 /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 8716 9000 57 CHINAMOBILE-CN China Mobile Communicati
7545 5861 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3593 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3500 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3219 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2506 11119 578 KIXS-AS-KR Korea Telecom, KR
9498 2174 475 235 BBIL-AP BHARTI Airtel Ltd., IN
45090 2135 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2120 429 202 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 5961 10006 2562 AMAZON-02, US
11492 4605 305 827 CABLEONE, US
22773 4047 3049 381 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3685 1899 2560 AKAMAI-AS, US
6327 3389 1318 65 SHAW, CA
749 2890 50784 2146 DNIC-AS-00749, US
30036 2596 373 162 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2523 5027 439 CENTURYLINK-US-LEGACY-QWEST, US
7018 2247 24164 1436 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 6875 1711 149 UNI2-AS, ES
20940 3918 3348 218 AKAMAI-ASN1, NL
8551 3369 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2932 2279 898 ROSTELECOM-AS, RU
9009 2513 258 1322 M247, GB
34984 2201 354 600 TELLCOM-AS, TR
58224 1751 915 592 TCI, IR
61317 1645 215 927 ASDETUK www.heficed.com, GB
13188 1610 100 27 TRIOLAN, UA
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 10625 3450 577 Uninet S.A. de C.V., MX
10620 3248 490 830 Telmex Colombia S.A., CO
11830 2465 369 62 Instituto Costarricense de Electricidad
13999 1643 287 456 Mega Cable, S.A. de C.V., MX
6503 1514 358 470 Axtel, S.A.B. de C.V., MX
28573 1378 2312 256 CLARO S.A., BR
3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1136 2351 138 TIM SA, BR
6147 1098 369 21 Telefonica del Peru S.A.A., PE
11664 971 188 444 Techtel LMDS Comunicaciones Interactiva
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 1637 393 21 LINKdotNET-AS, EG
24835 1553 507 33 RAYA-AS, EG
36992 1285 1430 270 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
36935 703 523 44 Vodafone-, EG
29571 667 68 11 ORANGE-COTE-IVOIRE, CI
6713 612 1863 34 IAM-AS, MA
15399 517 50 31 WANANCHI-, KE
37342 470 32 1 MOVITEL, MZ
23889 429 232 16 MauritiusTelecom, MU
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 10625 3450 577 Uninet S.A. de C.V., MX
9808 8716 9000 57 CHINAMOBILE-CN China Mobile Communicati
12479 6875 1711 149 UNI2-AS, ES
16509 5961 10006 2562 AMAZON-02, US
7545 5861 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4605 305 827 CABLEONE, US
22773 4047 3049 381 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3918 3348 218 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 8716 8659 CHINAMOBILE-CN China Mobile Communications Grou
12479 6875 6726 UNI2-AS, ES
7545 5861 5177 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4591 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4605 3778 CABLEONE, US
20940 3918 3700 AKAMAI-ASN1, NL
22773 4047 3666 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3593 3573 VIETEL-AS-AP Viettel Group, VN
7713 3500 3443 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
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
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.252.160.0/24 Origin: 398968 GROUP-IID-01, US
23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.161.0/24 Origin: 398968 GROUP-IID-01, US
23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.162.0/24 Origin: 398968 GROUP-IID-01, US
23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.163.0/24 Origin: 398968 GROUP-IID-01, US
23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
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 /9:13 /10:41 /11:101 /12:304
/13:597 /14:1214 /15:2045 /16:13563 /17:8266 /18:13913
/19:25301 /20:43165 /21:51015 /22:107589 /23:94089 /24:510337
/25:1287 /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 5829 6875 UNI2-AS, ES
8151 4426 10625 Uninet S.A. de C.V., MX
11492 3558 4605 CABLEONE, US
6327 3197 3389 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 3009 4047 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2834 3369 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
39891 2807 3271 ALJAWWALSTC-AS, SA
30036 2252 2596 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1917 2465 Instituto Costarricense de Electricidad y Telec
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1916 2:1033 3:144 4:18 5:3694 6:100
7:5 8:1548 9:1 11:172 12:1712 13:407
14:2290 15:125 16:32 17:374 18:129 20:143
21:4 22:188 23:5306 24:2368 25:4 27:2552
29:19 31:2377 32:106 34:1 35:48 36:1723
37:3916 38:2361 39:656 40:149 41:3868 42:1045
43:2091 44:295 45:15701 46:3784 47:323 49:1679
50:1876 51:103 52:1346 54:288 55:653 56:4
57:55 58:1741 59:1151 60:939 61:2276 62:2404
63:1946 64:5404 65:2347 66:4952 67:2896 68:1176
69:4126 70:1348 71:679 72:3091 74:2614 75:1502
76:710 77:2208 78:1744 79:2694 80:1870 81:1523
82:1413 83:1172 84:1303 85:2830 86:700 87:1883
88:975 89:3172 90:493 91:7482 92:1902 93:2570
94:3219 95:3585 96:1299 97:347 98:980 99:911
100:76 101:1047 102:1770 103:27489 104:4101 105:436
106:844 107:2391 108:750 109:3916 110:2062 111:3150
112:1956 113:1548 114:1540 115:1933 116:1894 117:2436
118:2314 119:1867 120:1619 121:1071 122:2536 123:2136
124:1601 125:2065 128:1392 129:1112 130:915 131:2061
132:751 133:366 134:1913 135:284 136:775 137:861
138:2441 139:1217 140:838 141:1318 142:1224 143:1358
144:1265 145:330 146:1641 147:1462 148:2236 149:1588
150:850 151:1080 152:1651 153:440 154:3353 155:1363
156:1834 157:1192 158:987 159:2010 160:2233 161:1274
162:3403 163:1165 164:1654 165:1498 166:602 167:1667
168:3641 169:675 170:4279 171:802 172:2834 173:3042
174:1004 175:1114 176:3432 177:4464 178:3014 179:1950
180:2263 181:2623 182:3163 183:1981 184:2411 185:19016
186:4229 187:3518 188:3623 189:3085 190:8745 191:1329
192:10990 193:8425 194:6873 195:4911 196:2884 197:2237
198:6021 199:6006 200:7416 201:5671 202:10520 203:10046
204:4489 205:3400 206:3832 207:3391 208:4013 209:4613
210:4234 211:2442 212:3827 213:3378 214:1166 215:64
216:6377 217:2625 218:1223 219:639 220:1955 221:987
222:852 223:2132
End of report
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