[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 18 18:02:53 UTC 2022
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
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 19 Feb, 2022
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: 888099
Prefixes after maximum aggregation (per Origin AS): 335036
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 427841
Total ASes present in the Internet Routing Table: 72856
Prefixes per ASN: 12.19
Origin-only ASes present in the Internet Routing Table: 62489
Origin ASes announcing only one prefix: 25791
Transit ASes present in the Internet Routing Table: 10367
Transit-only ASes present in the Internet Routing Table: 378
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: 945
Number of instances of unregistered ASNs: 949
Number of 32-bit ASNs allocated by the RIRs: 38594
Number of 32-bit ASNs visible in the Routing Table: 32152
Prefixes from 32-bit ASNs in the Routing Table: 150010
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: 523
Number of addresses announced to Internet: 3068725632
Equivalent to 182 /8s, 233 /16s and 9 /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: 300697
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 232657
Total APNIC prefixes after maximum aggregation: 65852
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 227464
Unique aggregates announced from the APNIC address blocks: 94149
APNIC Region origin ASes present in the Internet Routing Table: 12389
APNIC Prefixes per ASN: 18.36
APNIC Region origin ASes announcing only one prefix: 3556
APNIC Region transit ASes present in the Internet Routing Table: 1715
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7585
Number of APNIC addresses announced to Internet: 773730816
Equivalent to 46 /8s, 30 /16s and 50 /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: 258735
Total ARIN prefixes after maximum aggregation: 119151
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 258933
Unique aggregates announced from the ARIN address blocks: 123539
ARIN Region origin ASes present in the Internet Routing Table: 18984
ARIN Prefixes per ASN: 13.64
ARIN Region origin ASes announcing only one prefix: 6895
ARIN Region transit ASes present in the Internet Routing Table: 1960
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 32
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4356
Number of ARIN addresses announced to Internet: 1295998464
Equivalent to 77 /8s, 63 /16s and 94 /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: 254187
Total RIPE prefixes after maximum aggregation: 116585
RIPE Deaggregation factor: 2.18
Prefixes being announced from the RIPE address blocks: 250651
Unique aggregates announced from the RIPE address blocks: 149300
RIPE Region origin ASes present in the Internet Routing Table: 28187
RIPE Prefixes per ASN: 8.89
RIPE Region origin ASes announcing only one prefix: 12128
RIPE Region transit ASes present in the Internet Routing Table: 3981
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10661
Number of RIPE addresses announced to Internet: 713880704
Equivalent to 42 /8s, 140 /16s and 244 /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: 114057
Total LACNIC prefixes after maximum aggregation: 27367
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 114744
Unique aggregates announced from the LACNIC address blocks: 48538
LACNIC Region origin ASes present in the Internet Routing Table: 10938
LACNIC Prefixes per ASN: 10.49
LACNIC Region origin ASes announcing only one prefix: 2661
LACNIC Region transit ASes present in the Internet Routing Table: 2221
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: 8621
Number of LACNIC addresses announced to Internet: 176610816
Equivalent to 10 /8s, 134 /16s and 222 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 27518
Total AfriNIC prefixes after maximum aggregation: 5371
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 35784
Unique aggregates announced from the AfriNIC address blocks: 11855
AfriNIC Region origin ASes present in the Internet Routing Table: 1595
AfriNIC Prefixes per ASN: 22.44
AfriNIC Region origin ASes announcing only one prefix: 551
AfriNIC Region transit ASes present in the Internet Routing Table: 314
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 929
Number of AfriNIC addresses announced to Internet: 108180224
Equivalent to 6 /8s, 114 /16s and 179 /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 9066 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5874 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3603 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3488 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3434 1880 57 VNPT-AS-VN VNPT Corp, VN
4766 2557 11123 631 KIXS-AS-KR Korea Telecom, KR
9498 2379 475 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2170 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2113 429 198 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 6277 10186 2660 AMAZON-02, US
11492 4437 294 747 CABLEONE, US
22773 3957 3028 367 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3899 264 31 VIASAT-SP-BACKBONE, US
16625 3650 1883 2566 AKAMAI-AS, US
6327 3382 1318 62 SHAW, CA
749 2887 50780 2143 DNIC-AS-00749, US
30036 2617 375 123 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2520 4962 428 CENTURYLINK-US-LEGACY-QWEST, US
20115 2255 3037 502 CHARTER-20115, 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 6805 1731 150 UNI2-AS, ES
9121 6754 1692 17 TTNET, TR
8551 4014 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3891 3347 207 AKAMAI-ASN1, NL
39891 3274 188 25 ALJAWWALSTC-AS, SA
12389 2962 2290 910 ROSTELECOM-AS, RU
9009 2464 249 1282 M247, GB
34984 2240 359 605 TELLCOM-AS, TR
47331 1957 313 1494 TTNET, TR
58224 1791 929 579 TCI, IR
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 10310 3415 566 Uninet S.A. de C.V., MX
10620 3467 519 705 Telmex Colombia S.A., CO
11830 2457 369 62 Instituto Costarricense de Electricidad
13999 1668 285 474 Mega Cable, S.A. de C.V., MX
6503 1442 354 524 Axtel, S.A.B. de C.V., MX
28573 1397 2330 246 CLARO S.A., BR
3816 1251 660 146 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1152 2351 140 TIM SA, BR
6147 1091 369 21 Telefonica del Peru S.A.A., PE
11664 999 191 448 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 1589 393 21 LINKdotNET-AS, EG
24835 1546 523 32 RAYA-AS, EG
36992 1299 1518 262 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 896 63 58 ORANGE-COTE-IVOIRE, CI
36935 734 521 39 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 519 50 33 WANANCHI-, KE
37342 468 32 1 MOVITEL, MZ
23889 422 232 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 10310 3415 566 Uninet S.A. de C.V., MX
9808 9066 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6805 1731 150 UNI2-AS, ES
9121 6754 1692 17 TTNET, TR
16509 6277 10186 2660 AMAZON-02, US
7545 5874 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4437 294 747 CABLEONE, US
8551 4014 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3957 3028 367 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9066 9020 CHINAMOBILE-CN China Mobile Communications Grou
9121 6754 6737 TTNET, TR
12479 6805 6655 UNI2-AS, ES
7545 5874 5183 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4607 ERX-CERNET-BKB China Education and Research Net
8551 4014 3975 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3899 3868 VIASAT-SP-BACKBONE, US
11492 4437 3690 CABLEONE, US
20940 3891 3684 AKAMAI-ASN1, NL
16509 6277 3617 AMAZON-02, US
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 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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
17033 UNALLOCATED 8.48.225.0/24 3356 LEVEL3, 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
23.141.0.0/24 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: 174 COGENT-174, US
23.252.161.0/24 Origin: 398968 GROUP-IID-01, US
23.252.161.0/24 Transit: 174 COGENT-174, US
23.252.163.0/24 Origin: 398968 GROUP-IID-01, US
23.252.163.0/24 Transit: 174 COGENT-174, US
23.252.164.0/24 Origin: 398968 GROUP-IID-01, US
23.252.164.0/24 Transit: 174 COGENT-174, US
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 /10:40 /11:102 /12:305
/13:591 /14:1205 /15:2030 /16:13580 /17:8357 /18:13898
/19:25191 /20:43092 /21:52309 /22:108398 /23:95274 /24:522901
/25:797 /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
9121 5913 6754 TTNET, TR
12479 5774 6805 UNI2-AS, ES
8151 3976 10310 Uninet S.A. de C.V., MX
8551 3479 4014 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3357 4437 CABLEONE, US
6327 3194 3382 SHAW, CA
7155 2989 3899 VIASAT-SP-BACKBONE, US
22773 2950 3957 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2810 3274 ALJAWWALSTC-AS, SA
30036 2272 2617 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1667 2:992 3:153 4:7 5:3793 6:103
7:5 8:1559 9:1 11:172 12:1718 13:415
14:2378 15:166 16:43 17:373 18:140 20:167
21:4 22:188 23:5492 24:2302 25:6 27:2608
29:19 31:2432 32:96 34:1 35:60 36:1728
37:3945 38:2567 39:687 40:149 41:3914 42:765
43:2094 44:292 45:16001 46:3896 47:336 49:1643
50:1916 51:107 52:1367 53:1 54:294 55:768
56:8 57:55 58:1765 59:1181 60:958 61:2274
62:2450 63:1941 64:5506 65:2307 66:4862 67:2939
68:1181 69:4170 70:1343 71:668 72:3064 74:2619
75:1516 76:717 77:2125 78:3854 79:3106 80:1969
81:1667 82:1459 83:1202 84:1340 85:3627 86:717
87:1945 88:2649 89:3233 90:510 91:7545 92:1890
93:2612 94:3264 95:4485 96:1308 97:346 98:994
99:859 100:75 101:1030 102:1965 103:28305 104:4162
105:464 106:862 107:2460 108:772 109:4197 110:2056
111:3241 112:1978 113:1499 114:1502 115:1950 116:1910
117:2511 118:2232 119:1830 120:1666 121:1038 122:2552
123:2112 124:1611 125:2111 128:1289 129:1181 130:923
131:2084 132:755 133:370 134:1925 135:283 136:857
137:863 138:2449 139:1222 140:888 141:1366 142:1256
143:1451 144:1229 145:342 146:1775 147:1471 148:2192
149:1699 150:860 151:1076 152:1827 153:448 154:3520
155:1356 156:1878 157:1229 158:1015 159:2047 160:2396
161:1302 162:3451 163:1226 164:1660 165:1569 166:638
167:1694 168:3718 169:682 170:4365 171:826 172:3018
173:3068 174:1021 175:1115 176:3541 177:4545 178:3039
179:1970 180:2278 181:2912 182:3235 183:1897 184:2387
185:19339 186:4302 187:3556 188:3849 189:3015 190:8828
191:1309 192:11052 193:8526 194:6923 195:4991 196:2922
197:2340 198:6008 199:5993 200:7512 201:5656 202:10429
203:9977 204:4558 205:3373 206:3793 207:3401 208:4011
209:4621 210:4241 211:2454 212:3950 213:3384 214:1156
215:64 216:6385 217:2641 218:1247 219:599 220:1950
221:987 222:859 223:2170
End of report
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