[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 4 18:02:58 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 05 Mar, 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: 889936
Prefixes after maximum aggregation (per Origin AS): 335804
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 428204
Total ASes present in the Internet Routing Table: 72802
Prefixes per ASN: 12.22
Origin-only ASes present in the Internet Routing Table: 62438
Origin ASes announcing only one prefix: 25692
Transit ASes present in the Internet Routing Table: 10364
Transit-only ASes present in the Internet Routing Table: 381
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: 922
Number of instances of unregistered ASNs: 925
Number of 32-bit ASNs allocated by the RIRs: 38710
Number of 32-bit ASNs visible in the Routing Table: 32223
Prefixes from 32-bit ASNs in the Routing Table: 150594
Number of bogon 32-bit ASNs visible in the Routing Table: 23
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 505
Number of addresses announced to Internet: 3067615488
Equivalent to 182 /8s, 216 /16s and 25 /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: 301039
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233294
Total APNIC prefixes after maximum aggregation: 66099
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 228289
Unique aggregates announced from the APNIC address blocks: 94492
APNIC Region origin ASes present in the Internet Routing Table: 12449
APNIC Prefixes per ASN: 18.34
APNIC Region origin ASes announcing only one prefix: 3551
APNIC Region transit ASes present in the Internet Routing Table: 1720
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7647
Number of APNIC addresses announced to Internet: 773997952
Equivalent to 46 /8s, 34 /16s and 69 /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: 259682
Total ARIN prefixes after maximum aggregation: 119358
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 259843
Unique aggregates announced from the ARIN address blocks: 123858
ARIN Region origin ASes present in the Internet Routing Table: 18981
ARIN Prefixes per ASN: 13.69
ARIN Region origin ASes announcing only one prefix: 6893
ARIN Region transit ASes present in the Internet Routing Table: 1966
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: 4386
Number of ARIN addresses announced to Internet: 1295510272
Equivalent to 77 /8s, 55 /16s and 235 /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: 254137
Total RIPE prefixes after maximum aggregation: 116902
RIPE Deaggregation factor: 2.17
Prefixes being announced from the RIPE address blocks: 251262
Unique aggregates announced from the RIPE address blocks: 149507
RIPE Region origin ASes present in the Internet Routing Table: 28082
RIPE Prefixes per ASN: 8.95
RIPE Region origin ASes announcing only one prefix: 12050
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: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10638
Number of RIPE addresses announced to Internet: 713858176
Equivalent to 42 /8s, 140 /16s and 156 /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: 114295
Total LACNIC prefixes after maximum aggregation: 27388
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 114291
Unique aggregates announced from the LACNIC address blocks: 48146
LACNIC Region origin ASes present in the Internet Routing Table: 10933
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2645
LACNIC Region transit ASes present in the Internet Routing Table: 2220
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: 8620
Number of LACNIC addresses announced to Internet: 176044544
Equivalent to 10 /8s, 126 /16s and 58 /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: 27606
Total AfriNIC prefixes after maximum aggregation: 5374
AfriNIC Deaggregation factor: 5.14
Prefixes being announced from the AfriNIC address blocks: 35746
Unique aggregates announced from the AfriNIC address blocks: 11765
AfriNIC Region origin ASes present in the Internet Routing Table: 1597
AfriNIC Prefixes per ASN: 22.38
AfriNIC Region origin ASes announcing only one prefix: 553
AfriNIC Region transit ASes present in the Internet Routing Table: 315
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 932
Number of AfriNIC addresses announced to Internet: 107865088
Equivalent to 6 /8s, 109 /16s and 228 /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 9104 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5875 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4684 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3491 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3434 1880 57 VNPT-AS-VN VNPT Corp, VN
4766 2545 11122 623 KIXS-AS-KR Korea Telecom, KR
9498 2382 475 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2169 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2110 429 197 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 6351 10200 2644 AMAZON-02, US
11492 4446 295 737 CABLEONE, US
22773 3955 3029 368 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3895 263 26 VIASAT-SP-BACKBONE, US
16625 3659 1888 2572 AKAMAI-AS, US
6327 3395 1318 62 SHAW, CA
749 2885 50780 2141 DNIC-AS-00749, US
30036 2610 374 156 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2521 4962 428 CENTURYLINK-US-LEGACY-QWEST, US
20115 2257 3042 499 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 6811 1730 149 UNI2-AS, ES
9121 6687 1692 17 TTNET, TR
8551 4015 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3930 3348 213 AKAMAI-ASN1, NL
39891 3546 204 29 ALJAWWALSTC-AS, SA
12389 2960 2274 910 ROSTELECOM-AS, RU
9009 2468 249 1285 M247, GB
34984 2240 359 611 TELLCOM-AS, TR
47331 2057 324 1572 TTNET, TR
58224 1798 931 597 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 10400 3421 562 Uninet S.A. de C.V., MX
10620 3476 520 695 Telmex Colombia S.A., CO
11830 2433 369 62 Instituto Costarricense de Electricidad
13999 1694 289 475 Mega Cable, S.A. de C.V., MX
6503 1441 354 524 Axtel, S.A.B. de C.V., MX
28573 1396 2332 248 CLARO S.A., BR
3816 1253 664 145 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1147 2350 139 TIM SA, BR
6147 1089 369 21 Telefonica del Peru S.A.A., PE
11664 1004 191 447 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 1591 393 21 LINKdotNET-AS, EG
24835 1545 523 32 RAYA-AS, EG
36992 1301 1518 262 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 907 64 62 ORANGE-COTE-IVOIRE, CI
36935 729 521 40 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 519 51 34 WANANCHI-, KE
37342 469 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 10400 3421 562 Uninet S.A. de C.V., MX
9808 9104 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6811 1730 149 UNI2-AS, ES
9121 6687 1692 17 TTNET, TR
16509 6351 10200 2644 AMAZON-02, US
7545 5875 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4684 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4446 295 737 CABLEONE, US
8551 4015 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3955 3029 368 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 9104 9058 CHINAMOBILE-CN China Mobile Communications Grou
9121 6687 6670 TTNET, TR
12479 6811 6662 UNI2-AS, ES
7545 5875 5184 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4684 4610 ERX-CERNET-BKB China Education and Research Net
8551 4015 3976 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3895 3869 VIASAT-SP-BACKBONE, US
20940 3930 3717 AKAMAI-ASN1, NL
11492 4446 3709 CABLEONE, US
16509 6351 3707 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
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: 37204 TELONE, ZW
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
41.57.124.0/24 Origin: 37442 UNASSIGNED
41.57.124.0/24 Transit: 37204 TELONE, ZW
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
/13:590 /14:1206 /15:2029 /16:13579 /17:8340 /18:13898
/19:25176 /20:43176 /21:52412 /22:108351 /23:95511 /24:524399
/25:793 /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 5843 6687 TTNET, TR
12479 5788 6811 UNI2-AS, ES
8151 4061 10400 Uninet S.A. de C.V., MX
8551 3480 4015 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3359 4446 CABLEONE, US
6327 3207 3395 SHAW, CA
7155 2988 3895 VIASAT-SP-BACKBONE, US
22773 2946 3955 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2874 3546 ALJAWWALSTC-AS, SA
30036 2265 2610 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1721 2:1062 3:154 4:7 5:3759 6:103
7:5 8:1565 9:1 11:172 12:1712 13:412
14:2386 15:170 16:43 17:375 18:142 20:167
21:4 22:188 23:5510 24:2314 25:6 27:2604
29:19 31:2418 32:95 34:1 35:62 36:1752
37:3923 38:2601 39:695 40:151 41:3933 42:841
43:2104 44:293 45:16028 46:3893 47:348 49:1681
50:1909 51:107 52:1366 53:1 54:296 55:737
56:8 57:58 58:1775 59:1199 60:964 61:2270
62:2452 63:1941 64:5504 65:2301 66:4861 67:2954
68:1192 69:4147 70:1353 71:670 72:3076 74:2621
75:1517 76:720 77:2101 78:3870 79:3102 80:1959
81:1661 82:1454 83:1215 84:1339 85:3640 86:722
87:1949 88:2656 89:3242 90:509 91:7529 92:1891
93:2593 94:3294 95:4493 96:1309 97:347 98:990
99:863 100:75 101:1036 102:1981 103:28454 104:4262
105:460 106:851 107:2482 108:788 109:4154 110:2069
111:3270 112:2008 113:1495 114:1502 115:1959 116:1905
117:2515 118:2252 119:1855 120:1669 121:1059 122:2558
123:2120 124:1613 125:2105 128:1190 129:1190 130:922
131:2070 132:757 133:372 134:1930 135:289 136:875
137:866 138:2454 139:1236 140:888 141:1434 142:1268
143:1455 144:1235 145:344 146:1765 147:1494 148:2203
149:1704 150:855 151:1080 152:1847 153:457 154:3540
155:1427 156:1880 157:1234 158:1020 159:2062 160:2408
161:1300 162:3451 163:1220 164:1665 165:1594 166:659
167:1711 168:3719 169:688 170:4407 171:822 172:3010
173:3073 174:1019 175:1126 176:3504 177:4584 178:3057
179:1960 180:2276 181:2918 182:3225 183:1944 184:2387
185:19334 186:4313 187:3608 188:3841 189:3079 190:8841
191:1301 192:11041 193:8545 194:6949 195:4967 196:2932
197:2356 198:6010 199:6018 200:7504 201:5663 202:10453
203:9965 204:4556 205:3374 206:3785 207:3388 208:4045
209:4650 210:4251 211:2448 212:3987 213:3384 214:1158
215:64 216:6437 217:2633 218:1246 219:597 220:1948
221:987 222:856 223:2171
End of report
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