[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 21 18:02:23 UTC 2025
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
UKNOF, 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 22 Mar, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 979249
Prefixes after maximum aggregation (per Origin AS): 374952
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 475848
Number of IPv4 prefixes with a valid ROA: 533224
Number of IPv4 prefixes with an invalid ROA: 1382
Number of IPv4 prefixes with no ROA: 444643
Total ASes present in the Internet Routing Table: 76757
Prefixes per ASN: 12.76
Origin-only ASes present in the Internet Routing Table: 65728
Origin ASes announcing only one prefix: 26856
Transit ASes present in the Internet Routing Table: 11029
Transit-only ASes present in the Internet Routing Table: 540
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 204
Max AS path prepend of ASN (273039) 200
Prefixes from unregistered ASNs in the Routing Table: 1031
Number of instances of unregistered ASNs: 1040
Number of 32-bit ASNs allocated by the RIRs: 46126
Number of 32-bit ASNs visible in the Routing Table: 38026
Prefixes from 32-bit ASNs in the Routing Table: 200186
Number of bogon 32-bit ASNs visible in the Routing Table: 48
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 514
Number of addresses announced to Internet: 3109499648
Equivalent to 185 /8s, 87 /16s and 51 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 321665
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256804
Total APNIC prefixes after maximum aggregation: 76839
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 248534
Unique aggregates announced from the APNIC address blocks: 102716
APNIC Region origin ASes present in the Internet Routing Table: 14594
APNIC Prefixes per ASN: 17.03
APNIC Region origin ASes announcing only one prefix: 4442
APNIC Region transit ASes present in the Internet Routing Table: 1954
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 50
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10072
Number of APNIC addresses announced to Internet: 749746944
Equivalent to 44 /8s, 176 /16s and 59 /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, 131072-155961
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: 289733
Total ARIN prefixes after maximum aggregation: 128678
ARIN Deaggregation factor: 2.25
Prefixes being announced from the ARIN address blocks: 290436
Unique aggregates announced from the ARIN address blocks: 136765
ARIN Region origin ASes present in the Internet Routing Table: 19239
ARIN Prefixes per ASN: 15.10
ARIN Region origin ASes announcing only one prefix: 7018
ARIN Region transit ASes present in the Internet Routing Table: 2003
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5173
Number of ARIN addresses announced to Internet: 1350438656
Equivalent to 80 /8s, 126 /16s and 15 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 272845
Total RIPE prefixes after maximum aggregation: 132748
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 271011
Unique aggregates announced from the RIPE address blocks: 173507
RIPE Region origin ASes present in the Internet Routing Table: 28876
RIPE Prefixes per ASN: 9.39
RIPE Region origin ASes announcing only one prefix: 12049
RIPE Region transit ASes present in the Internet Routing Table: 3991
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12332
Number of RIPE addresses announced to Internet: 732450560
Equivalent to 43 /8s, 168 /16s and 79 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 123983
Total LACNIC prefixes after maximum aggregation: 29282
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 120620
Unique aggregates announced from the LACNIC address blocks: 48855
LACNIC Region origin ASes present in the Internet Routing Table: 11214
LACNIC Prefixes per ASN: 10.76
LACNIC Region origin ASes announcing only one prefix: 2654
LACNIC Region transit ASes present in the Internet Routing Table: 2502
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 204
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9173
Number of LACNIC addresses announced to Internet: 171611392
Equivalent to 10 /8s, 58 /16s and 149 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 34853
Total AfriNIC prefixes after maximum aggregation: 6770
AfriNIC Deaggregation factor: 5.15
Prefixes being announced from the AfriNIC address blocks: 48134
Unique aggregates announced from the AfriNIC address blocks: 13576
AfriNIC Region origin ASes present in the Internet Routing Table: 1914
AfriNIC Prefixes per ASN: 25.15
AfriNIC Region origin ASes announcing only one prefix: 693
AfriNIC Region transit ASes present in the Internet Routing Table: 381
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1276
Number of AfriNIC addresses announced to Internet: 105002240
Equivalent to 6 /8s, 66 /16s and 53 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 10333 8754 93 CHINAMOBILE-CN China Mobile Communication
7545 6210 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4781 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4266 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7552 3911 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3277 1869 103 VNPT-AS-VN VNPT Corp, VN
24560 2843 847 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2348 11520 602 KIXS-AS-KR Korea Telecom, KR
45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 12895 39636 3992 AMAZON-02, US
11492 4675 310 585 CABLEONE, US
7155 4174 286 83 VIASAT-SP-BACKBONE, US
6327 3623 1320 81 SHAW, CA
174 3510 8765 949 COGENT-174, US
22773 3376 3033 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
16625 3014 1267 2208 AKAMAI-AS, US
396982 2943 3660 456 GOOGLE-CLOUD-PLATFORM, US
36352 2571 213 807 AS-COLOCROSSING, 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 7751 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3939 3395 130 AKAMAI-ASN1, NL
9009 3771 325 1955 M247, RO
12389 3011 2303 891 ROSTELECOM-AS, RU
34984 2368 360 584 TELLCOM-AS, TR
212238 2043 145 1502 CDNEXT, GB
8452 1613 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1488 98 746 CLOUVIDER Clouvider - Global ASN, GB
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 11834 3240 584 UNINET, MX
10620 3523 486 970 Telmex Colombia S.A., CO
13999 2507 539 368 Mega Cable, S.A. de C.V., MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR
3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
11664 1164 278 33 Techtel LMDS Comunicaciones Interactivas
6503 1067 359 174 Axtel, S.A.B. de C.V., MX
22884 1049 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
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
24835 1703 599 30 RAYA-AS, EG
24863 1621 389 16 LINKdotNET-AS, EG
29571 1564 102 23 ORANGE-COTE-IVOIRE, CI
36992 1426 1518 286 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1006 521 42 Vodafone-, EG
20011 980 183 284 INTERNET-SOLUTIONS, ZA
37069 859 1083 15 MOBINIL, EG
6713 562 1861 35 IAM-AS, MA
36914 543 82 3 KENET-AS, KE
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
16509 12895 39636 3992 AMAZON-02, US
8151 11834 3240 584 UNINET, MX
9808 10333 8754 93 CHINAMOBILE-CN China Mobile Communication
12479 7751 1714 145 UNI2-AS, ES
7545 6210 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 293 62 ALJAWWALSTC-AS, SA
4538 4781 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4675 310 585 CABLEONE, US
9498 4266 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7155 4174 286 83 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
8151 11834 11250 UNINET, MX
9808 10333 10240 CHINAMOBILE-CN China Mobile Communications Grou
12479 7751 7606 UNI2-AS, ES
7545 6210 5556 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4781 4705 ERX-CERNET-BKB China Education and Research Net
7155 4174 4091 VIASAT-SP-BACKBONE, US
11492 4675 4090 CABLEONE, US
9498 4266 3989 BBIL-AP BHARTI Airtel Ltd., IN
7552 3911 3885 VIETEL-AS-AP Viettel Group, VN
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
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US
23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /9:16 /10:41 /11:93 /12:303
/13:583 /14:1216 /15:2148 /16:13982 /17:8357 /18:13804
/19:24838 /20:44583 /21:52217 /22:112462 /23:101556 /24:602236
/25:798 /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 6684 7751 UNI2-AS, ES
8151 6036 11834 UNINET, MX
11492 3528 4675 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3418 3623 SHAW, CA
7155 3121 4174 VIASAT-SP-BACKBONE, US
22773 2515 3376 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2313 12895 AMAZON-02, US
30036 2213 2553 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2185 3523 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1693 2:1512 3:598 4:10 5:4534 6:163
7:6 8:1556 9:1 11:172 12:1375 13:346
14:2548 15:351 16:279 17:363 18:919 20:463
21:4 22:188 23:7332 24:3026 25:2 27:2687
29:19 31:3207 32:40 34:79 35:205 36:2415
37:4702 38:8858 39:898 40:155 41:4209 42:944
43:2549 44:355 45:18453 46:4974 47:290 49:1993
50:1891 51:591 52:1552 54:299 55:1074 56:9
57:251 58:2136 59:1312 60:1169 61:2788 62:2899
63:1838 64:5487 65:2172 66:4615 67:3012 68:1119
69:3966 70:1109 71:613 72:2857 74:2813 75:1656
76:616 77:2699 78:1859 79:1736 80:2208 81:2018
82:2865 83:1394 84:1819 85:3369 86:1041 87:2402
88:1284 89:4330 90:782 91:8319 92:2787 93:2892
94:4018 95:4249 96:1424 97:314 98:994 99:737
100:71 101:1070 102:3652 103:32236 104:4815 105:732
106:999 107:2589 108:1211 109:4121 110:2232 111:3343
112:2041 113:1523 114:1948 115:2093 116:2044 117:2745
118:2420 119:1922 120:1894 121:1411 122:2756 123:2177
124:1616 125:2884 126:88 128:1557 129:965 130:1279
131:1882 132:783 133:451 134:1529 135:329 136:1276
137:1158 138:2884 139:1610 140:1559 141:1478 142:1822
143:1641 144:1059 145:480 146:2162 147:2095 148:2616
149:2897 150:1247 151:2033 152:2104 153:504 154:7902
155:1614 156:3322 157:1893 158:1273 159:2429 160:3543
161:1936 162:3703 163:1934 164:1698 165:2199 166:1414
167:1883 168:4057 169:791 170:5102 171:1002 172:4466
173:3224 174:912 175:1263 176:3676 177:4749 178:3820
179:2360 180:2576 181:4048 182:3372 183:1827 184:2295
185:21491 186:5124 187:4381 188:4217 189:4205 190:9627
191:1544 192:11175 193:9430 194:7773 195:5540 196:3250
197:3664 198:6189 199:8407 200:8142 201:6298 202:10560
203:10533 204:4542 205:3667 206:4636 207:3563 208:4193
209:5196 210:4800 211:2619 212:4518 213:3747 214:1054
215:48 216:6582 217:3090 218:1379 219:540 220:2082
221:1066 222:851 223:2340
End of report
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