[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jun 19 20:16:41 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 19 Jun, 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: 260788
Prefixes after maximum aggregation (per Origin AS): 115035
Deaggregation factor: 2.27
Unique aggregates announced (without unneeded subnets): 135144
Number of IPv4 prefixes with a valid ROA: 117355
Number of IPv4 prefixes with an invalid ROA: 43
Number of IPv4 prefixes with no ROA: 143390
Total ASes present in the Internet Routing Table: 19649
Prefixes per ASN: 13.27
Origin-only ASes present in the Internet Routing Table: 16973
Origin ASes announcing only one prefix: 7732
Transit ASes present in the Internet Routing Table: 2676
Transit-only ASes present in the Internet Routing Table: 703
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: 46680
Number of 32-bit ASNs visible in the Routing Table: 7417
Prefixes from 32-bit ASNs in the Routing Table: 28371
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: 107
Number of addresses announced to Internet: 1554166749
Equivalent to 92 /8s, 162 /16s and 179 /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: 82243
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32337
Total APNIC prefixes after maximum aggregation: 7154
APNIC Deaggregation factor: 4.52
Prefixes being announced from the APNIC address blocks: 31377
Unique aggregates announced from the APNIC address blocks: 7434
APNIC Region origin ASes present in the Internet Routing Table: 1188
APNIC Prefixes per ASN: 26.41
APNIC Region origin ASes announcing only one prefix: 463
APNIC Region transit ASes present in the Internet Routing Table: 190
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 552
Number of APNIC addresses announced to Internet: 166526572
Equivalent to 9 /8s, 236 /16s and 254 /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: 124573
Total ARIN prefixes after maximum aggregation: 65570
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 122290
Unique aggregates announced from the ARIN address blocks: 66090
ARIN Region origin ASes present in the Internet Routing Table: 9307
ARIN Prefixes per ASN: 13.14
ARIN Region origin ASes announcing only one prefix: 3875
ARIN Region transit ASes present in the Internet Routing Table: 873
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2192
Number of ARIN addresses announced to Internet: 960143329
Equivalent to 57 /8s, 58 /16s and 159 /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: 49307
Total RIPE prefixes after maximum aggregation: 26499
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51166
Unique aggregates announced from the RIPE address blocks: 37238
RIPE Region origin ASes present in the Internet Routing Table: 4612
RIPE Prefixes per ASN: 11.09
RIPE Region origin ASes announcing only one prefix: 1948
RIPE Region transit ASes present in the Internet Routing Table: 693
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: 1905
Number of RIPE addresses announced to Internet: 285991760
Equivalent to 17 /8s, 11 /16s and 227 /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: 43502
Total LACNIC prefixes after maximum aggregation: 13151
LACNIC Deaggregation factor: 3.31
Prefixes being announced from the LACNIC address blocks: 42610
Unique aggregates announced from the LACNIC address blocks: 19575
LACNIC Region origin ASes present in the Internet Routing Table: 3420
LACNIC Prefixes per ASN: 12.46
LACNIC Region origin ASes announcing only one prefix: 1338
LACNIC Region transit ASes present in the Internet Routing Table: 699
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: 2616
Number of LACNIC addresses announced to Internet: 96043072
Equivalent to 5 /8s, 185 /16s and 128 /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: 10698
Total AfriNIC prefixes after maximum aggregation: 2399
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 13238
Unique aggregates announced from the AfriNIC address blocks: 4701
AfriNIC Region origin ASes present in the Internet Routing Table: 288
AfriNIC Prefixes per ASN: 45.97
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 78
Average AfriNIC Region AS path length visible: 6.3
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 152
Number of AfriNIC addresses announced to Internet: 45416704
Equivalent to 2 /8s, 181 /16s and 1 /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 11040 8759 104 CHINAMOBILE-CN China Mobile Communication
56046 2132 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1670 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication
24547 868 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 608 2170 465 SINET-AS Research Organization of Informa
45102 530 856 135 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17676 462 8751 151 GIGAINFRA SoftBank Corp., JP
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 13638 40933 5226 AMAZON-02, US
22773 3345 3016 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2794 212 1709 USDA-1, US
36352 2551 209 1125 AS-COLOCROSSING, US
367 2412 3160 1150 DNIC-ASBLK-00306-00371, US
7018 1952 22869 1453 ATT-INTERNET4, US
6167 1910 3953 511 CELLCO-PART, US
11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US
209 1658 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 1189 92 968 AKAMAI-ASN1, NL
3257 1005 2081 783 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 816 1301 129 SAUDINETSTC-AS, SA
8452 780 1841 16 TE-AS TE-AS, EG
34984 678 74 412 TELLCOM-AS, TR
212238 654 47 579 CDNEXT, GB
8376 576 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 6785 1862 940 UNINET, MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
10620 1669 243 1209 Telmex Colombia S.A., CO
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1200 371 22 Telefonica del Peru S.A.A., PE
26615 1047 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 627 90 33 ENTEL CHILE S.A., CL
6503 533 346 132 Axtel, S.A.B. de C.V., MX
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 1453 389 16 LINKdotNET-AS, EG
29571 1163 101 74 ORANGE-COTE-IVOIRE, CI
24835 1062 476 108 RAYA-AS, EG
36935 608 132 166 Vodafone-, EG
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36914 565 82 3 KENET-AS, KE
36992 553 1192 126 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
37069 451 1046 15 MOBINIL, EG
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 13638 40933 5226 AMAZON-02, US
9808 11040 8759 104 CHINAMOBILE-CN China Mobile Communication
8151 6785 1862 940 UNINET, MX
22773 3345 3016 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2794 212 1709 USDA-1, US
36352 2551 209 1125 AS-COLOCROSSING, US
367 2412 3160 1150 DNIC-ASBLK-00306-00371, US
56046 2132 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1990 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 11040 10936 CHINAMOBILE-CN China Mobile Communications Grou
8151 6785 5845 UNINET, MX
22773 3345 3180 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2132 1944 CMNET-JIANGSU-AP China Mobile communications co
11830 1990 1926 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1901 1687 ATLANTICBB-JOHNSTOWN, US
56041 1670 1580 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1453 1437 LINKdotNET-AS, EG
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
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
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
41.204.226.0/24 Origin: 36911 RESERVED, ZZ
41.204.226.0/24 Transit: 328766 RESERVED, ZZ
41.204.227.0/24 Origin: 36911 RESERVED, ZZ
41.204.227.0/24 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 /10:30 /11:41 /12:151
/13:207 /14:571 /15:1091 /16:7612 /17:3423 /18:4178
/19:7480 /20:12461 /21:15128 /22:27191 /23:27574 /24:153405
/25:63 /26:81 /27:33 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3574 6785 UNINET, MX
22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2356 13638 AMAZON-02, US
11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1028 2551 AS-COLOCROSSING, US
19901 1007 1309 BRSPD-PUBLIC, US
10620 964 1669 Telmex Colombia S.A., CO
209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1901 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 2:467 3:820 4:5 5:805 6:148
7:5 8:660 11:171 12:973 13:396 14:113
15:304 16:248 17:4 18:889 20:189 21:4
22:188 23:2605 24:706 27:23 29:19 31:536
32:9 33:1 34:10 35:179 36:1952 37:935
38:1992 39:550 40:63 41:980 42:21 43:223
44:35 45:3529 46:969 47:97 49:19 50:354
51:387 52:1395 54:313 55:1082 56:11 57:22
58:16 59:30 60:16 61:83 62:530 63:745
64:1969 65:1094 66:1532 67:1001 68:398 69:1144
70:469 71:193 72:648 74:929 75:318 76:249
77:485 78:355 79:290 80:275 81:373 82:708
83:205 84:339 85:431 86:246 87:203 88:301
89:710 90:104 91:940 92:642 93:489 94:923
95:668 96:293 97:53 98:456 99:179 100:36
101:21 102:334 103:1200 104:1676 105:213 107:1562
108:547 109:400 110:35 111:1927 112:525 113:35
114:39 115:24 116:57 117:1045 118:67 119:82
120:1352 121:43 122:66 123:63 124:61 125:25
128:481 129:396 130:670 131:933 132:550 133:213
134:450 135:125 136:607 137:506 138:839 139:423
140:708 141:359 142:1030 143:698 144:427 145:120
146:687 147:511 148:894 149:778 150:205 151:642
152:486 153:141 154:948 155:868 156:887 157:374
158:563 159:740 160:887 161:639 162:1034 163:425
164:711 165:529 166:795 167:659 168:1118 169:161
170:1539 171:109 172:1354 173:807 174:294 175:68
176:769 177:808 178:490 179:698 180:40 181:1786
182:25 183:997 184:456 185:3497 186:2049 187:1450
188:823 189:1707 190:4060 191:452 192:5172 193:1883
194:1230 195:921 196:684 197:1193 198:2745 199:4945
200:3596 201:3231 202:943 203:725 204:2161 205:1731
206:1524 207:1555 208:1487 209:1955 210:296 211:427
212:1009 213:767 214:937 215:37 216:2555 217:418
218:527 219:18 220:28 221:395 222:24 223:899
End of report
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