[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 25 18:02:54 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 26 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: 889606
Prefixes after maximum aggregation (per Origin AS): 335572
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 428228
Total ASes present in the Internet Routing Table: 72908
Prefixes per ASN: 12.20
Origin-only ASes present in the Internet Routing Table: 62551
Origin ASes announcing only one prefix: 25795
Transit ASes present in the Internet Routing Table: 10357
Transit-only ASes present in the Internet Routing Table: 383
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: 903
Number of instances of unregistered ASNs: 906
Number of 32-bit ASNs allocated by the RIRs: 38651
Number of 32-bit ASNs visible in the Routing Table: 32221
Prefixes from 32-bit ASNs in the Routing Table: 150454
Number of bogon 32-bit ASNs visible in the Routing Table: 22
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 504
Number of addresses announced to Internet: 3068244224
Equivalent to 182 /8s, 225 /16s and 177 /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: 300926
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233321
Total APNIC prefixes after maximum aggregation: 66019
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 228154
Unique aggregates announced from the APNIC address blocks: 94305
APNIC Region origin ASes present in the Internet Routing Table: 12445
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 3575
APNIC Region transit ASes present in the Internet Routing Table: 1715
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: 7637
Number of APNIC addresses announced to Internet: 773963648
Equivalent to 46 /8s, 33 /16s and 191 /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: 259328
Total ARIN prefixes after maximum aggregation: 119363
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 259441
Unique aggregates announced from the ARIN address blocks: 123680
ARIN Region origin ASes present in the Internet Routing Table: 18993
ARIN Prefixes per ASN: 13.66
ARIN Region origin ASes announcing only one prefix: 6896
ARIN Region transit ASes present in the Internet Routing Table: 1971
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: 4372
Number of ARIN addresses announced to Internet: 1295641344
Equivalent to 77 /8s, 57 /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: 254310
Total RIPE prefixes after maximum aggregation: 116718
RIPE Deaggregation factor: 2.18
Prefixes being announced from the RIPE address blocks: 250792
Unique aggregates announced from the RIPE address blocks: 149315
RIPE Region origin ASes present in the Internet Routing Table: 28162
RIPE Prefixes per ASN: 8.91
RIPE Region origin ASes announcing only one prefix: 12103
RIPE Region transit ASes present in the Internet Routing Table: 3977
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: 10652
Number of RIPE addresses announced to Internet: 713886080
Equivalent to 42 /8s, 141 /16s and 9 /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: 114243
Total LACNIC prefixes after maximum aggregation: 27407
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 114932
Unique aggregates announced from the LACNIC address blocks: 48626
LACNIC Region origin ASes present in the Internet Routing Table: 10942
LACNIC Prefixes per ASN: 10.50
LACNIC Region origin ASes announcing only one prefix: 2662
LACNIC Region transit ASes present in the Internet Routing Table: 2216
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: 8628
Number of LACNIC addresses announced to Internet: 176664064
Equivalent to 10 /8s, 135 /16s and 174 /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: 27501
Total AfriNIC prefixes after maximum aggregation: 5383
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 35783
Unique aggregates announced from the AfriNIC address blocks: 11861
AfriNIC Region origin ASes present in the Internet Routing Table: 1600
AfriNIC Prefixes per ASN: 22.36
AfriNIC Region origin ASes announcing only one prefix: 559
AfriNIC Region transit ASes present in the Internet Routing Table: 313
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: 932
Number of AfriNIC addresses announced to Internet: 107772416
Equivalent to 6 /8s, 108 /16s and 122 /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 9082 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5879 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3610 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3487 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3433 1880 57 VNPT-AS-VN VNPT Corp, VN
4766 2544 11122 623 KIXS-AS-KR Korea Telecom, KR
9498 2380 475 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2170 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2112 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 6340 10198 2695 AMAZON-02, US
11492 4444 295 737 CABLEONE, US
22773 3960 3029 368 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3895 263 26 VIASAT-SP-BACKBONE, US
16625 3659 1888 2573 AKAMAI-AS, US
6327 3389 1318 62 SHAW, CA
749 2887 50780 2143 DNIC-AS-00749, US
30036 2610 374 156 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2522 4962 429 CENTURYLINK-US-LEGACY-QWEST, US
20115 2261 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 6804 1729 149 UNI2-AS, ES
9121 6757 1692 17 TTNET, TR
8551 4014 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3908 3348 213 AKAMAI-ASN1, NL
39891 3274 188 25 ALJAWWALSTC-AS, SA
12389 2962 2290 910 ROSTELECOM-AS, RU
9009 2465 249 1284 M247, GB
34984 2234 358 606 TELLCOM-AS, TR
47331 1963 316 1496 TTNET, TR
58224 1782 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 10353 3415 566 Uninet S.A. de C.V., MX
10620 3472 520 695 Telmex Colombia S.A., CO
11830 2459 369 62 Instituto Costarricense de Electricidad
13999 1688 288 471 Mega Cable, S.A. de C.V., MX
6503 1440 354 523 Axtel, S.A.B. de C.V., MX
28573 1399 2332 247 CLARO S.A., BR
3816 1252 662 144 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1149 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 1592 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 903 64 62 ORANGE-COTE-IVOIRE, CI
36935 730 521 39 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 518 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 10353 3415 566 Uninet S.A. de C.V., MX
9808 9082 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6804 1729 149 UNI2-AS, ES
9121 6757 1692 17 TTNET, TR
16509 6340 10198 2695 AMAZON-02, US
7545 5879 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4444 295 737 CABLEONE, US
8551 4014 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3960 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 9082 9036 CHINAMOBILE-CN China Mobile Communications Grou
9121 6757 6740 TTNET, TR
12479 6804 6655 UNI2-AS, ES
7545 5879 5188 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 3895 3869 VIASAT-SP-BACKBONE, US
11492 4444 3707 CABLEONE, US
20940 3908 3695 AKAMAI-ASN1, NL
16509 6340 3645 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 /14:1206 /15:2029 /16:13580 /17:8351 /18:13885
/19:25147 /20:43168 /21:52394 /22:108459 /23:95426 /24:524098
/25:796 /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 5915 6757 TTNET, TR
12479 5775 6804 UNI2-AS, ES
8151 4019 10353 Uninet S.A. de C.V., MX
8551 3479 4014 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3358 4444 CABLEONE, US
6327 3201 3389 SHAW, CA
7155 2988 3895 VIASAT-SP-BACKBONE, US
22773 2951 3960 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2810 3274 ALJAWWALSTC-AS, SA
30036 2266 2610 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1724 2:991 3:151 4:7 5:3775 6:103
7:5 8:1561 9:1 11:172 12:1719 13:416
14:2388 15:168 16:42 17:374 18:141 20:166
21:4 22:188 23:5497 24:2310 25:6 27:2609
29:19 31:2427 32:96 34:1 35:62 36:1747
37:3949 38:2595 39:691 40:150 41:3901 42:837
43:2101 44:295 45:16024 46:3902 47:337 49:1677
50:1914 51:107 52:1364 53:1 54:294 55:771
56:8 57:58 58:1773 59:1193 60:966 61:2273
62:2450 63:1940 64:5506 65:2302 66:4878 67:2943
68:1186 69:4142 70:1346 71:670 72:3079 74:2614
75:1517 76:721 77:2127 78:3856 79:3103 80:1966
81:1668 82:1461 83:1207 84:1336 85:3636 86:726
87:1945 88:2647 89:3239 90:509 91:7548 92:1886
93:2592 94:3284 95:4491 96:1310 97:345 98:990
99:861 100:75 101:1036 102:1961 103:28323 104:4230
105:463 106:857 107:2486 108:783 109:4202 110:2065
111:3279 112:1990 113:1506 114:1508 115:1955 116:1902
117:2507 118:2255 119:1858 120:1664 121:1059 122:2559
123:2115 124:1614 125:2107 128:1295 129:1182 130:919
131:2084 132:760 133:372 134:1930 135:289 136:866
137:865 138:2440 139:1223 140:889 141:1368 142:1267
143:1459 144:1225 145:344 146:1788 147:1471 148:2208
149:1699 150:859 151:1079 152:1834 153:454 154:3543
155:1423 156:1877 157:1231 158:1023 159:2057 160:2410
161:1297 162:3455 163:1221 164:1666 165:1577 166:657
167:1713 168:3712 169:681 170:4410 171:825 172:3032
173:3064 174:1020 175:1128 176:3503 177:4585 178:3104
179:1966 180:2276 181:2932 182:3305 183:1929 184:2389
185:19303 186:4302 187:3580 188:3846 189:3055 190:8846
191:1313 192:11060 193:8534 194:6930 195:4981 196:2904
197:2346 198:6017 199:5995 200:7522 201:5661 202:10438
203:9985 204:4560 205:3370 206:3806 207:3378 208:4010
209:4643 210:4246 211:2453 212:3950 213:3383 214:1161
215:64 216:6399 217:2635 218:1242 219:598 220:1948
221:988 222:859 223:2170
End of report
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