[SANOG] Weekly Global IPv4 Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Oct 8 18:03:29 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 09 Oct, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 865799
Prefixes after maximum aggregation (per Origin AS): 328037
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 417220
Total ASes present in the Internet Routing Table: 72037
Prefixes per ASN: 12.02
Origin-only ASes present in the Internet Routing Table: 61895
Origin ASes announcing only one prefix: 25518
Transit ASes present in the Internet Routing Table: 10142
Transit-only ASes present in the Internet Routing Table: 342
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: 977
Number of instances of unregistered ASNs: 981
Number of 32-bit ASNs allocated by the RIRs: 37427
Number of 32-bit ASNs visible in the Routing Table: 31091
Prefixes from 32-bit ASNs in the Routing Table: 144662
Number of bogon 32-bit ASNs visible in the Routing Table: 28
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 515
Number of addresses announced to Internet: 3069966592
Equivalent to 182 /8s, 251 /16s and 249 /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: 287724
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231808
Total APNIC prefixes after maximum aggregation: 66263
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 227275
Unique aggregates announced from the APNIC address blocks: 92050
APNIC Region origin ASes present in the Internet Routing Table: 12003
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 3416
APNIC Region transit ASes present in the Internet Routing Table: 1688
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: 7169
Number of APNIC addresses announced to Internet: 772148352
Equivalent to 46 /8s, 6 /16s and 12 /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: 253515
Total ARIN prefixes after maximum aggregation: 116297
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 253446
Unique aggregates announced from the ARIN address blocks: 120928
ARIN Region origin ASes present in the Internet Routing Table: 18893
ARIN Prefixes per ASN: 13.41
ARIN Region origin ASes announcing only one prefix: 6851
ARIN Region transit ASes present in the Internet Routing Table: 1943
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: 4146
Number of ARIN addresses announced to Internet: 1301072384
Equivalent to 77 /8s, 140 /16s and 202 /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: 241164
Total RIPE prefixes after maximum aggregation: 112909
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 237322
Unique aggregates announced from the RIPE address blocks: 145502
RIPE Region origin ASes present in the Internet Routing Table: 28061
RIPE Prefixes per ASN: 8.46
RIPE Region origin ASes announcing only one prefix: 12083
RIPE Region transit ASes present in the Internet Routing Table: 3896
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: 10443
Number of RIPE addresses announced to Internet: 711814272
Equivalent to 42 /8s, 109 /16s and 108 /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: 111884
Total LACNIC prefixes after maximum aggregation: 26638
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 112798
Unique aggregates announced from the LACNIC address blocks: 47315
LACNIC Region origin ASes present in the Internet Routing Table: 10781
LACNIC Prefixes per ASN: 10.46
LACNIC Region origin ASes announcing only one prefix: 2628
LACNIC Region transit ASes present in the Internet Routing Table: 2135
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8454
Number of LACNIC addresses announced to Internet: 176666880
Equivalent to 10 /8s, 135 /16s and 185 /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: 26451
Total AfriNIC prefixes after maximum aggregation: 5204
AfriNIC Deaggregation factor: 5.08
Prefixes being announced from the AfriNIC address blocks: 34443
Unique aggregates announced from the AfriNIC address blocks: 10996
AfriNIC Region origin ASes present in the Internet Routing Table: 1548
AfriNIC Prefixes per ASN: 22.25
AfriNIC Region origin ASes announcing only one prefix: 540
AfriNIC Region transit ASes present in the Internet Routing Table: 306
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 42
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 879
Number of AfriNIC addresses announced to Internet: 107914496
Equivalent to 6 /8s, 110 /16s and 165 /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 8045 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5835 786 680 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3619 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3494 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3027 1896 55 VNPT-AS-VN VNPT Corp, VN
4766 2505 11119 576 KIXS-AS-KR Korea Telecom, KR
9498 2173 472 237 BBIL-AP BHARTI Airtel Ltd., IN
45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2126 437 202 TATACOMM-AS TATA Communications formerl
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 5665 9813 2489 AMAZON-02, US
11492 4681 310 767 CABLEONE, US
22773 4099 3057 383 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3636 1880 2536 AKAMAI-AS, US
6327 3374 1319 67 SHAW, CA
30036 2588 374 179 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2533 5028 453 CENTURYLINK-US-LEGACY-QWEST, US
20115 2241 3032 504 CHARTER-20115, US
7018 2229 24160 1424 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 6846 1726 143 UNI2-AS, ES
20940 3863 3348 214 AKAMAI-ASN1, NL
8551 3277 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3269 187 23 ALJAWWALSTC-AS, SA
12389 2919 2279 896 ROSTELECOM-AS, RU
9009 2485 258 1311 M247, GB
34984 2233 358 603 TELLCOM-AS, TR
58224 1681 899 581 TCI, IR
61317 1637 257 912 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 8878 3459 570 Uninet S.A. de C.V., MX
10620 3409 519 711 Telmex Colombia S.A., CO
11830 2498 369 62 Instituto Costarricense de Electricidad
13999 1698 337 462 Mega Cable, S.A. de C.V., MX
6503 1522 359 477 Axtel, S.A.B. de C.V., MX
28573 1465 2309 242 CLARO S.A., BR
3816 1241 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1146 2351 136 TIM SA, BR
6147 1090 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 1636 393 21 LINKdotNET-AS, EG
24835 1529 503 32 RAYA-AS, EG
36992 1287 1418 270 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 800 68 11 ORANGE-COTE-IVOIRE, CI
36935 630 523 44 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 504 50 30 WANANCHI-, KE
37342 471 32 1 MOVITEL, MZ
2018 344 319 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 8878 3459 570 Uninet S.A. de C.V., MX
9808 8045 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6846 1726 143 UNI2-AS, ES
7545 5835 786 680 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5665 9813 2489 AMAZON-02, US
4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4681 310 767 CABLEONE, US
22773 4099 3057 383 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3863 3348 214 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 8045 7988 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6846 6703 UNI2-AS, ES
7545 5835 5155 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4639 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4681 3914 CABLEONE, US
22773 4099 3716 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3863 3649 AKAMAI-ASN1, NL
7552 3619 3599 VIETEL-AS-AP Viettel Group, VN
7713 3494 3438 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
398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US
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
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
23.136.80.0/24 Origin: 20119 ARROW, CA
23.136.80.0/24 Transit: 6939 HURRICANE, US
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.247.168.0/24 Origin: 142632 NASULEX-AS-AP Nasulex, NL
23.247.168.0/24 Transit: 53667 PONYNET, 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
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 /11:99 /12:300
/13:597 /14:1215 /15:2042 /16:13602 /17:8301 /18:14055
/19:25519 /20:42808 /21:51147 /22:107029 /23:92523 /24:505038
/25:1454 /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 5798 6846 UNI2-AS, ES
11492 3620 4681 CABLEONE, US
8151 3256 8878 Uninet S.A. de C.V., MX
6327 3181 3374 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 3022 4099 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2805 3269 ALJAWWALSTC-AS, SA
8551 2743 3277 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2242 2588 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1931 2498 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 2:1054 3:145 4:19 5:3654 6:85
7:5 8:1547 9:1 11:172 12:1712 13:391
14:2281 15:114 16:24 17:368 18:121 20:126
21:4 22:188 23:5169 24:2432 25:2 27:2559
29:19 31:2340 32:112 34:1 35:47 36:1718
37:3904 38:2269 39:602 40:151 41:3809 42:1037
43:2077 44:286 45:15493 46:3719 47:320 48:3
49:1678 50:1833 51:99 52:1288 54:247 55:711
56:4 57:54 58:1746 59:1186 60:933 61:2291
62:2265 63:1964 64:5373 65:2360 66:4948 67:2865
68:1158 69:4126 70:1361 71:678 72:3151 74:2614
75:1492 76:693 77:2030 78:1722 79:2607 80:1871
81:1537 82:1366 83:1158 84:1291 85:2833 86:725
87:1846 88:982 89:3058 90:499 91:7369 92:1843
93:2553 94:3165 95:3521 96:1300 97:347 98:975
99:960 100:75 101:1039 102:1690 103:27070 104:4063
105:438 106:823 107:2368 108:731 109:3871 110:2045
111:3130 112:1939 113:1409 114:1501 115:1934 116:1839
117:2410 118:2308 119:1893 120:1561 121:1080 122:2533
123:2170 124:1593 125:2051 128:1379 129:1314 130:899
131:2020 132:775 133:363 134:1862 135:318 136:792
137:862 138:2397 139:1192 140:761 141:1244 142:1180
143:1373 144:1266 145:326 146:1546 147:1443 148:2154
149:1509 150:831 151:1088 152:1659 153:427 154:3104
155:1327 156:1830 157:1183 158:1006 159:2035 160:2349
161:1247 162:3367 163:1083 164:1559 165:1445 166:593
167:1651 168:3647 169:682 170:4327 171:806 172:2750
173:2950 174:999 175:1121 176:3322 177:4542 178:3004
179:1920 180:2259 181:2669 182:3115 183:2011 184:2430
185:18917 186:4239 187:3178 188:3438 189:2900 190:8661
191:1299 192:10694 193:8370 194:6838 195:4878 196:2903
197:2124 198:6032 199:5926 200:7358 201:5488 202:10522
203:10083 204:4499 205:3379 206:4059 207:3352 208:4017
209:4735 210:4190 211:2362 212:3768 213:3364 214:1162
215:61 216:6354 217:2611 218:1219 219:670 220:1946
221:977 222:855 223:2050
End of report
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