[menog] Weekly Global IPv4 Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Oct 1 18:03:30 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.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Global IPv4 Routing Table Report 04:00 +10GMT Sat 02 Oct, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 864928
Prefixes after maximum aggregation (per Origin AS): 327395
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 416427
Total ASes present in the Internet Routing Table: 71992
Prefixes per ASN: 12.01
Origin-only ASes present in the Internet Routing Table: 61880
Origin ASes announcing only one prefix: 25516
Transit ASes present in the Internet Routing Table: 10112
Transit-only ASes present in the Internet Routing Table: 339
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 35
Prefixes from unregistered ASNs in the Routing Table: 900
Number of instances of unregistered ASNs: 906
Number of 32-bit ASNs allocated by the RIRs: 37393
Number of 32-bit ASNs visible in the Routing Table: 31025
Prefixes from 32-bit ASNs in the Routing Table: 144330
Number of bogon 32-bit ASNs visible in the Routing Table: 34
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 452
Number of addresses announced to Internet: 3068651008
Equivalent to 182 /8s, 231 /16s and 230 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
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: 287757
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231738
Total APNIC prefixes after maximum aggregation: 66212
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 227075
Unique aggregates announced from the APNIC address blocks: 91937
APNIC Region origin ASes present in the Internet Routing Table: 11991
APNIC Prefixes per ASN: 18.94
APNIC Region origin ASes announcing only one prefix: 3418
APNIC Region transit ASes present in the Internet Routing Table: 1671
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7148
Number of APNIC addresses announced to Internet: 772173696
Equivalent to 46 /8s, 6 /16s and 111 /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, 131072-147769
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: 252764
Total ARIN prefixes after maximum aggregation: 115758
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 252694
Unique aggregates announced from the ARIN address blocks: 120568
ARIN Region origin ASes present in the Internet Routing Table: 18899
ARIN Prefixes per ASN: 13.37
ARIN Region origin ASes announcing only one prefix: 6867
ARIN Region transit ASes present in the Internet Routing Table: 1951
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4130
Number of ARIN addresses announced to Internet: 1300138752
Equivalent to 77 /8s, 126 /16s and 139 /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: 241282
Total RIPE prefixes after maximum aggregation: 112897
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 237443
Unique aggregates announced from the RIPE address blocks: 145240
RIPE Region origin ASes present in the Internet Routing Table: 28049
RIPE Prefixes per ASN: 8.47
RIPE Region origin ASes announcing only one prefix: 12068
RIPE Region transit ASes present in the Internet Routing Table: 3898
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10427
Number of RIPE addresses announced to Internet: 711382656
Equivalent to 42 /8s, 102 /16s and 214 /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: 111765
Total LACNIC prefixes after maximum aggregation: 26637
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 112683
Unique aggregates announced from the LACNIC address blocks: 47245
LACNIC Region origin ASes present in the Internet Routing Table: 10781
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2622
LACNIC Region transit ASes present in the Internet Routing Table: 2123
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8444
Number of LACNIC addresses announced to Internet: 176435200
Equivalent to 10 /8s, 132 /16s and 48 /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: 26479
Total AfriNIC prefixes after maximum aggregation: 5191
AfriNIC Deaggregation factor: 5.10
Prefixes being announced from the AfriNIC address blocks: 34581
Unique aggregates announced from the AfriNIC address blocks: 11037
AfriNIC Region origin ASes present in the Internet Routing Table: 1546
AfriNIC Prefixes per ASN: 22.37
AfriNIC Region origin ASes announcing only one prefix: 541
AfriNIC Region transit ASes present in the Internet Routing Table: 302
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 876
Number of AfriNIC addresses announced to Internet: 108194560
Equivalent to 6 /8s, 114 /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 8042 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5826 786 677 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3612 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3515 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3012 1897 56 VNPT-AS-VN VNPT Corp, VN
4766 2495 11119 576 KIXS-AS-KR Korea Telecom, KR
9498 2170 472 237 BBIL-AP BHARTI Airtel Ltd., IN
4755 2127 438 203 TATACOMM-AS TATA Communications formerl
45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5657 9780 2489 AMAZON-02, US
11492 4706 311 750 CABLEONE, US
22773 4028 3042 318 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3947 264 30 VIASAT-SP-BACKBONE, US
16625 3600 1861 2514 AKAMAI-AS, US
6327 3369 1318 66 SHAW, CA
30036 2589 374 168 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2530 5028 450 CENTURYLINK-US-LEGACY-QWEST, US
20115 2242 3032 505 CHARTER-20115, US
7018 2227 24176 1421 ATT-INTERNET4, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6858 1726 143 UNI2-AS, ES
20940 3848 3348 216 AKAMAI-ASN1, NL
8551 3289 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3269 187 23 ALJAWWALSTC-AS, SA
12389 2913 2279 895 ROSTELECOM-AS, RU
9009 2492 259 1310 M247, GB
34984 2229 358 602 TELLCOM-AS, TR
58224 1667 897 579 TCI, IR
61317 1645 256 920 ASDETUK www.heficed.com, GB
13188 1610 100 27 TRIOLAN, UA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8866 3457 570 Uninet S.A. de C.V., MX
10620 3410 520 699 Telmex Colombia S.A., CO
11830 2495 369 62 Instituto Costarricense de Electricidad
13999 1696 358 464 Mega Cable, S.A. de C.V., MX
6503 1516 359 477 Axtel, S.A.B. de C.V., MX
28573 1462 2307 241 CLARO S.A., BR
3816 1241 652 151 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1148 2351 136 TIM SA, BR
6147 1089 370 22 Telefonica del Peru S.A.A., PE
11172 957 111 70 Alestra, S. de R.L. de C.V., MX
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1639 393 21 LINKdotNET-AS, EG
24835 1549 503 32 RAYA-AS, EG
36992 1283 1417 269 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 799 68 11 ORANGE-COTE-IVOIRE, CI
6713 611 1863 34 IAM-AS, MA
36935 607 522 40 Vodafone-, EG
15399 505 50 30 WANANCHI-, KE
37342 471 32 1 MOVITEL, MZ
2018 338 319 73 TENET-1, ZA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8866 3457 570 Uninet S.A. de C.V., MX
9808 8042 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6858 1726 143 UNI2-AS, ES
7545 5826 786 677 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5657 9780 2489 AMAZON-02, US
4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4706 311 750 CABLEONE, US
22773 4028 3042 318 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3947 264 30 VIASAT-SP-BACKBONE, US
20940 3848 3348 216 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 8042 7985 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6858 6715 UNI2-AS, ES
7545 5826 5149 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4639 ERX-CERNET-BKB China Education and Research Net
11492 4706 3956 CABLEONE, US
7155 3947 3917 VIASAT-SP-BACKBONE, US
22773 4028 3710 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3848 3632 AKAMAI-ASN1, NL
7552 3612 3592 VIETEL-AS-AP Viettel Group, VN
7713 3515 3459 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
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
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, US
Complete listing at http://thyme.rand.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.rand.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
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 174 COGENT-174, US
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
Complete listing at http://thyme.rand.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 /14:1213 /15:2040 /16:13596 /17:8317 /18:14098
/19:25517 /20:42653 /21:50989 /22:106842 /23:92430 /24:504709
/25:1452 /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 5810 6858 UNI2-AS, ES
11492 3645 4706 CABLEONE, US
8151 3240 8866 Uninet S.A. de C.V., MX
6327 3176 3369 SHAW, CA
7155 3037 3947 VIASAT-SP-BACKBONE, US
22773 2988 4028 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2805 3269 ALJAWWALSTC-AS, SA
8551 2755 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2242 2589 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1929 2495 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1927 2:1071 3:145 4:20 5:3713 6:85
7:5 8:1546 9:1 11:172 12:1723 13:390
14:2274 15:113 16:24 17:364 18:120 20:126
21:4 22:188 23:5153 24:2447 25:2 27:2544
29:19 31:2347 32:112 34:1 35:47 36:1725
37:3926 38:2259 39:599 40:166 41:3818 42:1015
43:2063 44:288 45:15511 46:3733 47:320 48:5
49:1666 50:1819 51:99 52:1286 54:250 55:738
56:4 57:54 58:1740 59:1183 60:931 61:2291
62:2275 63:1966 64:5368 65:2360 66:4970 67:2873
68:1161 69:4125 70:1361 71:677 72:3150 74:2618
75:1490 76:694 77:2024 78:1700 79:2621 80:1875
81:1546 82:1386 83:1155 84:1291 85:2923 86:716
87:1841 88:1016 89:3002 90:505 91:7385 92:1848
93:2549 94:3165 95:3511 96:1305 97:346 98:975
99:958 100:75 101:1039 102:1701 103:26991 104:4017
105:438 106:821 107:2349 108:727 109:3870 110:2038
111:3124 112:1937 113:1408 114:1466 115:1931 116:1846
117:2412 118:2310 119:1891 120:1561 121:1082 122:2545
123:2164 124:1594 125:2055 128:1366 129:1323 130:893
131:2026 132:778 133:362 134:1861 135:316 136:787
137:855 138:2399 139:1186 140:755 141:1230 142:1204
143:1370 144:1269 145:325 146:1546 147:1412 148:2164
149:1502 150:824 151:1087 152:1644 153:428 154:3109
155:1340 156:1881 157:1239 158:1003 159:2032 160:2376
161:1252 162:3387 163:1102 164:1553 165:1443 166:590
167:1652 168:3659 169:683 170:4347 171:806 172:2743
173:2948 174:1001 175:1118 176:3316 177:4481 178:3003
179:1895 180:2257 181:2663 182:3111 183:2011 184:2423
185:18892 186:4253 187:3146 188:3396 189:2891 190:8654
191:1327 192:10702 193:8351 194:6816 195:4865 196:2897
197:2123 198:6015 199:5939 200:7338 201:5488 202:10514
203:10060 204:4503 205:3368 206:3793 207:3367 208:4020
209:4738 210:4184 211:2359 212:3768 213:3391 214:1168
215:64 216:6373 217:2600 218:1218 219:670 220:1946
221:977 222:855 223:2049
End of report
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