[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Ven 12 Nov 18:03:00 UTC 2021
This is an automated weekly mailing describing the state of the Internet
Global 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 http://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 13 Nov, 2021
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 871023
Prefixes after maximum aggregation (per Origin AS): 329373
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 421022
Total ASes present in the Internet Routing Table: 72294
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 62097
Origin ASes announcing only one prefix: 25623
Transit ASes present in the Internet Routing Table: 10197
Transit-only ASes present in the Internet Routing Table: 356
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: 864
Number of instances of unregistered ASNs: 868
Number of 32-bit ASNs allocated by the RIRs: 37805
Number of 32-bit ASNs visible in the Routing Table: 31370
Prefixes from 32-bit ASNs in the Routing Table: 144615
Number of bogon 32-bit ASNs visible in the Routing Table: 25
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 427
Number of addresses announced to Internet: 3071879936
Equivalent to 183 /8s, 25 /16s and 43 /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: 290647
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 230878
Total APNIC prefixes after maximum aggregation: 64823
APNIC Deaggregation factor: 3.56
Prefixes being announced from the APNIC address blocks: 225931
Unique aggregates announced from the APNIC address blocks: 92904
APNIC Region origin ASes present in the Internet Routing Table: 12105
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 3455
APNIC Region transit ASes present in the Internet Routing Table: 1696
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7278
Number of APNIC addresses announced to Internet: 773269632
Equivalent to 46 /8s, 23 /16s and 40 /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: 255823
Total ARIN prefixes after maximum aggregation: 118120
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 255977
Unique aggregates announced from the ARIN address blocks: 122546
ARIN Region origin ASes present in the Internet Routing Table: 18948
ARIN Prefixes per ASN: 13.51
ARIN Region origin ASes announcing only one prefix: 6861
ARIN Region transit ASes present in the Internet Routing Table: 1957
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4208
Number of ARIN addresses announced to Internet: 1301297408
Equivalent to 77 /8s, 144 /16s and 57 /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: 242723
Total RIPE prefixes after maximum aggregation: 113535
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 238900
Unique aggregates announced from the RIPE address blocks: 146432
RIPE Region origin ASes present in the Internet Routing Table: 28141
RIPE Prefixes per ASN: 8.49
RIPE Region origin ASes announcing only one prefix: 12143
RIPE Region transit ASes present in the Internet Routing Table: 3915
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10520
Number of RIPE addresses announced to Internet: 712386688
Equivalent to 42 /8s, 118 /16s and 40 /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: 113718
Total LACNIC prefixes after maximum aggregation: 26952
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 114593
Unique aggregates announced from the LACNIC address blocks: 47437
LACNIC Region origin ASes present in the Internet Routing Table: 10791
LACNIC Prefixes per ASN: 10.62
LACNIC Region origin ASes announcing only one prefix: 2615
LACNIC Region transit ASes present in the Internet Routing Table: 2129
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: 8463
Number of LACNIC addresses announced to Internet: 176442624
Equivalent to 10 /8s, 132 /16s and 77 /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: 27017
Total AfriNIC prefixes after maximum aggregation: 5273
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 35195
Unique aggregates announced from the AfriNIC address blocks: 11318
AfriNIC Region origin ASes present in the Internet Routing Table: 1573
AfriNIC Prefixes per ASN: 22.37
AfriNIC Region origin ASes announcing only one prefix: 549
AfriNIC Region transit ASes present in the Internet Routing Table: 308
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: 901
Number of AfriNIC addresses announced to Internet: 108225280
Equivalent to 6 /8s, 115 /16s and 99 /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 8699 9000 57 CHINAMOBILE-CN China Mobile Communicati
7545 5858 787 685 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3591 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3498 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3195 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2507 11119 578 KIXS-AS-KR Korea Telecom, KR
9498 2169 471 234 BBIL-AP BHARTI Airtel Ltd., IN
45090 2135 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2124 429 204 TATACOMM-AS TATA Communications formerl
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5889 9964 2541 AMAZON-02, US
11492 4633 307 804 CABLEONE, US
22773 4047 3049 380 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3665 1891 2547 AKAMAI-AS, US
6327 3390 1318 69 SHAW, CA
749 2890 50784 2146 DNIC-AS-00749, US
30036 2599 375 147 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2523 5027 442 CENTURYLINK-US-LEGACY-QWEST, US
7018 2246 24164 1435 ATT-INTERNET4, US
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6881 1725 146 UNI2-AS, ES
20940 3925 3348 218 AKAMAI-ASN1, NL
39891 3271 187 23 ALJAWWALSTC-AS, SA
8551 3089 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2928 2279 898 ROSTELECOM-AS, RU
9009 2510 258 1320 M247, GB
34984 2199 354 599 TELLCOM-AS, TR
58224 1738 912 587 TCI, IR
61317 1630 213 918 ASDETUK www.heficed.com, GB
13188 1610 100 27 TRIOLAN, UA
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10629 3464 576 Uninet S.A. de C.V., MX
10620 3248 490 830 Telmex Colombia S.A., CO
11830 2470 369 62 Instituto Costarricense de Electricidad
13999 1641 286 453 Mega Cable, S.A. de C.V., MX
6503 1530 359 472 Axtel, S.A.B. de C.V., MX
28573 1451 2313 250 CLARO S.A., BR
3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1132 2351 138 TIM SA, BR
6147 1092 370 21 Telefonica del Peru S.A.A., PE
11664 970 188 442 Techtel LMDS Comunicaciones Interactiva
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1638 393 21 LINKdotNET-AS, EG
24835 1536 507 33 RAYA-AS, EG
36992 1285 1430 270 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 814 68 11 ORANGE-COTE-IVOIRE, CI
36935 702 523 44 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 516 50 31 WANANCHI-, KE
37342 470 32 1 MOVITEL, MZ
23889 429 232 16 MauritiusTelecom, MU
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10629 3464 576 Uninet S.A. de C.V., MX
9808 8699 9000 57 CHINAMOBILE-CN China Mobile Communicati
12479 6881 1725 146 UNI2-AS, ES
16509 5889 9964 2541 AMAZON-02, US
7545 5858 787 685 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4633 307 804 CABLEONE, US
22773 4047 3049 380 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3925 3348 218 AKAMAI-ASN1, NL
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 8699 8642 CHINAMOBILE-CN China Mobile Communications Grou
12479 6881 6735 UNI2-AS, ES
7545 5858 5173 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 4633 3829 CABLEONE, US
20940 3925 3707 AKAMAI-ASN1, NL
22773 4047 3667 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3591 3571 VIETEL-AS-AP Viettel Group, VN
7713 3498 3441 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
Complete listing at http://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 http://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 http://thyme.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US
23.132.208.0/24 Transit: 15164 UPNLLC, US
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
Complete listing at http://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 /11:99 /12:300
/13:597 /14:1214 /15:2044 /16:13567 /17:8258 /18:13918
/19:25286 /20:43031 /21:50861 /22:107243 /23:93940 /24:509146
/25:1449 /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 5840 6881 UNI2-AS, ES
8151 4426 10629 Uninet S.A. de C.V., MX
11492 3586 4633 CABLEONE, US
6327 3198 3390 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 3010 4047 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2807 3271 ALJAWWALSTC-AS, SA
8551 2554 3089 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2253 2599 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1921 2470 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1920 2:1048 3:145 4:18 5:3725 6:100
7:5 8:1549 9:1 11:172 12:1712 13:405
14:2267 15:123 16:30 17:375 18:125 20:143
21:4 22:188 23:5308 24:2389 25:2 27:2548
29:19 31:2380 32:106 34:1 35:47 36:1728
37:3910 38:2343 39:636 40:149 41:3872 42:1055
43:2082 44:290 45:15654 46:3784 47:323 49:1680
50:1876 51:103 52:1332 54:284 55:737 56:4
57:55 58:1741 59:1127 60:937 61:2246 62:2367
63:1957 64:5416 65:2347 66:4945 67:2874 68:1174
69:4086 70:1348 71:679 72:3090 74:2612 75:1499
76:709 77:2100 78:1745 79:2391 80:1872 81:1511
82:1411 83:1171 84:1300 85:2822 86:703 87:1877
88:973 89:3097 90:501 91:7463 92:1913 93:2571
94:3190 95:3593 96:1302 97:348 98:980 99:918
100:76 101:1044 102:1770 103:27411 104:4117 105:436
106:844 107:2412 108:748 109:3930 110:2059 111:3138
112:1952 113:1498 114:1538 115:1934 116:1875 117:2429
118:2328 119:1844 120:1613 121:1038 122:2535 123:2133
124:1597 125:2032 128:1376 129:1113 130:912 131:2072
132:749 133:364 134:1905 135:332 136:793 137:863
138:2423 139:1212 140:831 141:1323 142:1240 143:1340
144:1273 145:327 146:1585 147:1463 148:2235 149:1585
150:849 151:1080 152:1669 153:436 154:3292 155:1362
156:1819 157:1192 158:986 159:2012 160:2325 161:1262
162:3388 163:1112 164:1660 165:1497 166:610 167:1659
168:3654 169:681 170:4273 171:805 172:2838 173:3042
174:1002 175:1125 176:3395 177:4509 178:3008 179:1926
180:2260 181:2617 182:3159 183:1928 184:2417 185:18990
186:4234 187:3516 188:3628 189:3080 190:8723 191:1314
192:10974 193:8402 194:6867 195:4890 196:2878 197:2236
198:6032 199:6002 200:7404 201:5682 202:10470 203:10038
204:4496 205:3403 206:3848 207:3392 208:4006 209:4689
210:4223 211:2436 212:3788 213:3369 214:1159 215:64
216:6383 217:2622 218:1220 219:613 220:1955 221:986
222:852 223:2128
End of report
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