[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon May 19 20:16:57 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 19 May, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 263932
Prefixes after maximum aggregation (per Origin AS): 115665
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 134720
Number of IPv4 prefixes with a valid ROA: 119166
Number of IPv4 prefixes with an invalid ROA: 29
Number of IPv4 prefixes with no ROA: 144737
Total ASes present in the Internet Routing Table: 19795
Prefixes per ASN: 13.33
Origin-only ASes present in the Internet Routing Table: 17105
Origin ASes announcing only one prefix: 7776
Transit ASes present in the Internet Routing Table: 2690
Transit-only ASes present in the Internet Routing Table: 726
Paths with bogon ASNs present in the IPv4 Routing Table: 9
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 314
Number of instances of unregistered ASNs: 318
Number of 32-bit ASNs allocated by the RIRs: 46452
Number of 32-bit ASNs visible in the Routing Table: 7462
Prefixes from 32-bit ASNs in the Routing Table: 27848
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 1554407901
Equivalent to 92 /8s, 166 /16s and 97 /24s
Percentage of available address space announced: 42.0
Percentage of allocated address space announced: 42.0
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: 83151
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32448
Total APNIC prefixes after maximum aggregation: 7563
APNIC Deaggregation factor: 4.29
Prefixes being announced from the APNIC address blocks: 30853
Unique aggregates announced from the APNIC address blocks: 7654
APNIC Region origin ASes present in the Internet Routing Table: 1204
APNIC Prefixes per ASN: 25.63
APNIC Region origin ASes announcing only one prefix: 474
APNIC Region transit ASes present in the Internet Routing Table: 206
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 553
Number of APNIC addresses announced to Internet: 167720812
Equivalent to 9 /8s, 255 /16s and 55 /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: 125800
Total ARIN prefixes after maximum aggregation: 65505
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 122948
Unique aggregates announced from the ARIN address blocks: 65941
ARIN Region origin ASes present in the Internet Routing Table: 9329
ARIN Prefixes per ASN: 13.18
ARIN Region origin ASes announcing only one prefix: 3888
ARIN Region transit ASes present in the Internet Routing Table: 867
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2185
Number of ARIN addresses announced to Internet: 960679137
Equivalent to 57 /8s, 66 /16s and 204 /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: 49619
Total RIPE prefixes after maximum aggregation: 26792
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51294
Unique aggregates announced from the RIPE address blocks: 37234
RIPE Region origin ASes present in the Internet Routing Table: 4609
RIPE Prefixes per ASN: 11.13
RIPE Region origin ASes announcing only one prefix: 1936
RIPE Region transit ASes present in the Internet Routing Table: 696
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1880
Number of RIPE addresses announced to Internet: 281772880
Equivalent to 16 /8s, 203 /16s and 131 /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: 44629
Total LACNIC prefixes after maximum aggregation: 13238
LACNIC Deaggregation factor: 3.37
Prefixes being announced from the LACNIC address blocks: 43682
Unique aggregates announced from the LACNIC address blocks: 19550
LACNIC Region origin ASes present in the Internet Routing Table: 3513
LACNIC Prefixes per ASN: 12.43
LACNIC Region origin ASes announcing only one prefix: 1367
LACNIC Region transit ASes present in the Internet Routing Table: 711
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2691
Number of LACNIC addresses announced to Internet: 97466688
Equivalent to 5 /8s, 207 /16s and 57 /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: 11122
Total AfriNIC prefixes after maximum aggregation: 2354
AfriNIC Deaggregation factor: 4.72
Prefixes being announced from the AfriNIC address blocks: 15038
Unique aggregates announced from the AfriNIC address blocks: 4226
AfriNIC Region origin ASes present in the Internet Routing Table: 286
AfriNIC Prefixes per ASN: 52.58
AfriNIC Region origin ASes announcing only one prefix: 111
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 153
Number of AfriNIC addresses announced to Internet: 46717184
Equivalent to 2 /8s, 200 /16s and 217 /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 10808 8756 95 CHINAMOBILE-CN China Mobile Communication
56046 1774 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1572 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication
24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 849 54 400 LCS-AS-AP LARUS Limited, HK
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 604 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 515 848 138 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13409 40824 5069 AMAZON-02, US
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3230 54783 2481 DNIC-AS-00749, US
4155 2731 208 1674 USDA-1, US
36352 2561 210 1136 AS-COLOCROSSING, US
367 2444 2909 1173 DNIC-ASBLK-00306-00371, US
7018 2093 22887 1542 ATT-INTERNET4, US
11776 1896 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1860 3758 488 CELLCO-PART, US
209 1661 4889 271 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1175 92 962 AKAMAI-ASN1, NL
3257 931 2076 748 GTT-BACKBONE GTT, US
3215 895 4818 289 France Telecom - Orange, FR
25019 816 1301 129 SAUDINETSTC-AS, SA
8452 778 1841 16 TE-AS TE-AS, EG
34984 685 76 408 TELLCOM-AS, TR
212238 622 44 548 CDNEXT, GB
8376 569 53 21 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7187 2024 836 UNINET, MX
11830 1996 369 64 Instituto Costarricense de Electricidad y
10620 1902 280 1293 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1198 371 22 Telefonica del Peru S.A.A., PE
26615 1027 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 646 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 552 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1495 389 16 LINKdotNET-AS, EG
29571 1217 101 68 ORANGE-COTE-IVOIRE, CI
24835 1024 523 36 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 603 1228 124 ETISALAT-MISR, EG
36935 586 125 165 Vodafone-, EG
36914 553 82 3 KENET-AS, KE
36903 484 218 343 MT-MPLS, MA
37069 469 1046 15 MOBINIL, EG
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13409 40824 5069 AMAZON-02, US
9808 10808 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7187 2024 836 UNINET, MX
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3230 54783 2481 DNIC-AS-00749, US
4155 2731 208 1674 USDA-1, US
36352 2561 210 1136 AS-COLOCROSSING, US
367 2444 2909 1173 DNIC-ASBLK-00306-00371, US
7018 2093 22887 1542 ATT-INTERNET4, US
11830 1996 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10808 10713 CHINAMOBILE-CN China Mobile Communications Grou
8151 7187 6351 UNINET, MX
22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1996 1932 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1896 1680 ATLANTICBB-JOHNSTOWN, US
56046 1774 1588 CMNET-JIANGSU-AP China Mobile communications co
56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1495 1479 LINKdotNET-AS, EG
56047 1485 1432 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
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
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:41 /12:150
/13:209 /14:573 /15:1100 /16:7639 /17:3450 /18:4215
/19:7704 /20:12399 /21:15256 /22:27506 /23:27760 /24:155655
/25:62 /26:81 /27:35 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3790 7187 UNINET, MX
22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2327 13409 AMAZON-02, US
11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1040 2561 AS-COLOCROSSING, US
19901 978 1264 BRSPD-PUBLIC, US
209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1896 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:19 2:478 3:764 4:5 5:796 6:156
7:5 8:681 11:171 12:997 13:359 14:114
15:301 16:246 17:6 18:883 20:180 21:4
22:188 23:2595 24:640 27:23 29:19 31:514
32:9 33:1 34:10 35:133 36:1714 37:951
38:2049 39:554 40:62 41:967 42:21 43:205
44:36 45:3593 46:958 47:92 49:18 50:363
51:386 52:1388 54:304 55:1091 56:11 57:18
58:17 59:15 60:16 61:74 62:554 63:752
64:1929 65:1087 66:1547 67:960 68:397 69:1121
70:414 71:203 72:732 74:949 75:427 76:248
77:479 78:350 79:284 80:316 81:369 82:743
83:231 84:341 85:430 86:232 87:230 88:292
89:865 90:104 91:932 92:612 93:488 94:934
95:683 96:288 97:59 98:455 99:179 100:35
101:22 102:374 103:1212 104:1629 105:215 106:16
107:1525 108:545 109:394 110:41 111:1962 112:460
113:39 114:40 115:22 116:62 117:1047 118:38
119:124 120:1221 121:44 122:58 123:78 124:57
125:26 128:496 129:392 130:690 131:905 132:563
133:211 134:495 135:113 136:608 137:514 138:859
139:431 140:700 141:462 142:1022 143:685 144:433
145:135 146:673 147:492 148:878 149:772 150:352
151:644 152:494 153:129 154:1765 155:862 156:1449
157:388 158:552 159:728 160:940 161:667 162:982
163:361 164:712 165:775 166:785 167:631 168:1112
169:153 170:1628 171:120 172:1368 173:837 174:252
175:62 176:789 177:819 178:510 179:694 180:49
181:1824 182:29 183:933 184:448 185:3493 186:2046
187:1436 188:816 189:1621 190:4231 191:449 192:5176
193:1882 194:1236 195:955 196:713 197:1577 198:2731
199:4909 200:3561 201:3200 202:994 203:727 204:2146
205:1944 206:1546 207:1519 208:1466 209:1938 210:290
211:436 212:1038 213:794 214:983 215:42 216:2531
217:425 218:520 219:19 220:28 221:339 222:31
223:793
End of report
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