[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jul 3 20:16:37 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 03 Jul, 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: 277532
Prefixes after maximum aggregation (per Origin AS): 120512
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 143628
Number of IPv4 prefixes with a valid ROA: 129316
Number of IPv4 prefixes with an invalid ROA: 43
Number of IPv4 prefixes with no ROA: 148173
Total ASes present in the Internet Routing Table: 20949
Prefixes per ASN: 13.25
Origin-only ASes present in the Internet Routing Table: 18034
Origin ASes announcing only one prefix: 8092
Transit ASes present in the Internet Routing Table: 2915
Transit-only ASes present in the Internet Routing Table: 736
Paths with bogon ASNs present in the IPv4 Routing Table: 13
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 30
Max AS path prepend of ASN (265171) 25
Prefixes from unregistered ASNs in the Routing Table: 371
Number of instances of unregistered ASNs: 403
Number of 32-bit ASNs allocated by the RIRs: 46744
Number of 32-bit ASNs visible in the Routing Table: 8378
Prefixes from 32-bit ASNs in the Routing Table: 33028
Number of bogon 32-bit ASNs visible in the Routing Table: 74
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 1636009413
Equivalent to 97 /8s, 131 /16s and 133 /24s
Percentage of available address space announced: 44.2
Percentage of allocated address space announced: 44.2
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: 89073
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33643
Total APNIC prefixes after maximum aggregation: 7497
APNIC Deaggregation factor: 4.49
Prefixes being announced from the APNIC address blocks: 32405
Unique aggregates announced from the APNIC address blocks: 7776
APNIC Region origin ASes present in the Internet Routing Table: 1245
APNIC Prefixes per ASN: 26.03
APNIC Region origin ASes announcing only one prefix: 495
APNIC Region transit ASes present in the Internet Routing Table: 203
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: 596
Number of APNIC addresses announced to Internet: 165213804
Equivalent to 9 /8s, 216 /16s and 246 /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: 126498
Total ARIN prefixes after maximum aggregation: 66486
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124719
Unique aggregates announced from the ARIN address blocks: 67885
ARIN Region origin ASes present in the Internet Routing Table: 9334
ARIN Prefixes per ASN: 13.36
ARIN Region origin ASes announcing only one prefix: 3880
ARIN Region transit ASes present in the Internet Routing Table: 887
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: 2194
Number of ARIN addresses announced to Internet: 1028439305
Equivalent to 61 /8s, 76 /16s and 189 /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: 50717
Total RIPE prefixes after maximum aggregation: 27426
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 52361
Unique aggregates announced from the RIPE address blocks: 38302
RIPE Region origin ASes present in the Internet Routing Table: 4671
RIPE Prefixes per ASN: 11.21
RIPE Region origin ASes announcing only one prefix: 1975
RIPE Region transit ASes present in the Internet Routing Table: 706
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1925
Number of RIPE addresses announced to Internet: 287187536
Equivalent to 17 /8s, 30 /16s and 34 /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: 55453
Total LACNIC prefixes after maximum aggregation: 16427
LACNIC Deaggregation factor: 3.38
Prefixes being announced from the LACNIC address blocks: 53767
Unique aggregates announced from the LACNIC address blocks: 24489
LACNIC Region origin ASes present in the Internet Routing Table: 4544
LACNIC Prefixes per ASN: 11.83
LACNIC Region origin ASes announcing only one prefix: 1632
LACNIC Region transit ASes present in the Internet Routing Table: 897
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3512
Number of LACNIC addresses announced to Internet: 108450816
Equivalent to 6 /8s, 118 /16s and 212 /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: 10850
Total AfriNIC prefixes after maximum aggregation: 2417
AfriNIC Deaggregation factor: 4.49
Prefixes being announced from the AfriNIC address blocks: 14170
Unique aggregates announced from the AfriNIC address blocks: 5067
AfriNIC Region origin ASes present in the Internet Routing Table: 292
AfriNIC Prefixes per ASN: 48.53
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 75
Average AfriNIC Region AS path length visible: 6.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151
Number of AfriNIC addresses announced to Internet: 46603776
Equivalent to 2 /8s, 199 /16s and 30 /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 11374 8759 113 CHINAMOBILE-CN China Mobile Communication
56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 611 2169 463 SINET-AS Research Organization of Informa
45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 510 32 145 LCS-AS-AP LARUS Limited, HK
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 13585 40949 5226 AMAZON-02, US
22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2841 216 1736 USDA-1, US
36352 2562 210 1138 AS-COLOCROSSING, US
367 2456 3164 1161 DNIC-ASBLK-00306-00371, US
6167 1909 3939 521 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1810 22859 1352 ATT-INTERNET4, US
209 1656 4889 270 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 1186 92 963 AKAMAI-ASN1, NL
3257 1041 2082 805 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
8452 826 1841 16 TE-AS TE-AS, EG
25019 814 1301 129 SAUDINETSTC-AS, SA
34984 738 80 466 TELLCOM-AS, TR
212238 662 47 586 CDNEXT, GB
8376 576 52 23 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 6580 1800 903 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1711 248 1231 Telmex Colombia S.A., CO
3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1020 2487 55 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
11172 723 124 70 Alestra, S. de R.L. de C.V., MX
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 647 91 44 ENTEL CHILE S.A., CL
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 1564 389 16 LINKdotNET-AS, EG
29571 1064 100 72 ORANGE-COTE-IVOIRE, CI
24835 980 413 108 RAYA-AS, EG
36992 681 1254 203 ETISALAT-MISR, EG
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36914 567 82 3 KENET-AS, KE
37069 559 1094 15 MOBINIL, EG
36935 475 517 39 Vodafone-, EG
36903 456 204 330 MT-MPLS, MA
2018 374 318 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 13585 40949 5226 AMAZON-02, US
9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication
8151 6580 1800 903 UNINET, MX
22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2841 216 1736 USDA-1, US
36352 2562 210 1138 AS-COLOCROSSING, US
367 2456 3164 1161 DNIC-ASBLK-00306-00371, US
56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1987 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 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou
8151 6580 5677 UNINET, MX
22773 3335 3172 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2366 2178 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
24863 1564 1548 LINKdotNET-AS, EG
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1482 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
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
21861 UNALLOCATED 12.37.59.0/24 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
41.67.248.0/22 Origin: 15964 CAMNET-AS, CM
41.67.248.0/22 Transit: 37662 WIOCC-AS, MU
41.67.252.0/23 Origin: 15964 CAMNET-AS, CM
41.67.252.0/23 Transit: 37662 WIOCC-AS, MU
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 /8:14 /9:11 /10:31 /11:51 /12:158
/13:219 /14:589 /15:1109 /16:7613 /17:3494 /18:4264
/19:7731 /20:12793 /21:15859 /22:28511 /23:29221 /24:165640
/25:63 /26:80 /27:35 /28:13 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3419 6580 UNINET, MX
22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2347 13585 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1025 2562 AS-COLOCROSSING, US
19901 1014 1318 BRSPD-PUBLIC, US
10620 993 1711 Telmex Colombia S.A., CO
209 962 1656 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1902 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:21 2:452 3:821 4:5 5:809 6:149
7:5 8:654 11:171 12:975 13:394 14:113
15:306 16:247 17:4 18:886 20:188 21:4
22:188 23:2648 24:689 27:26 29:19 31:528
32:18 33:1 34:10 35:175 36:2071 37:770
38:2566 39:552 40:78 41:1059 42:21 43:228
44:30 45:4382 46:1023 47:98 49:21 50:364
51:387 52:1387 54:315 55:1103 56:11 57:23
58:16 59:38 60:31 61:79 62:569 63:788
64:1920 65:1152 66:1601 67:1099 68:371 69:1258
70:447 71:192 72:712 74:959 75:320 76:259
77:530 78:370 79:254 80:305 81:371 82:727
83:222 84:364 85:485 86:246 87:224 88:302
89:723 90:106 91:964 92:668 93:500 94:966
95:667 96:291 97:53 98:503 99:188 100:42
101:20 102:380 103:1301 104:1679 105:204 106:41
107:1549 108:544 109:442 110:46 111:1932 112:583
113:36 114:52 115:27 116:57 117:1081 118:69
119:86 120:1399 121:49 122:77 123:130 124:68
125:25 128:519 129:391 130:666 131:1043 132:563
133:213 134:471 135:127 136:628 137:524 138:1006
139:441 140:724 141:366 142:1041 143:781 144:425
145:125 146:692 147:521 148:994 149:766 150:181
151:794 152:630 153:144 154:1367 155:862 156:1160
157:401 158:552 159:745 160:826 161:661 162:1071
163:440 164:726 165:577 166:818 167:696 168:1549
169:159 170:1782 171:110 172:1350 173:814 174:362
175:88 176:819 177:1139 178:612 179:872 180:49
181:2261 182:57 183:1033 184:461 185:3545 186:2721
187:1582 188:840 189:1857 190:5841 191:511 192:5266
193:1906 194:1265 195:941 196:745 197:1282 198:2746
199:5005 200:4651 201:3720 202:973 203:743 204:2221
205:1850 206:1585 207:1627 208:1583 209:2030 210:335
211:447 212:1015 213:819 214:924 215:35 216:2606
217:449 218:548 219:19 220:34 221:415 222:24
223:985
End of report
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