[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Jun 28 20:16:42 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 28 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: 273538
Prefixes after maximum aggregation (per Origin AS): 119479
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 141756
Number of IPv4 prefixes with a valid ROA: 126056
Number of IPv4 prefixes with an invalid ROA: 46
Number of IPv4 prefixes with no ROA: 147436
Total ASes present in the Internet Routing Table: 20732
Prefixes per ASN: 13.19
Origin-only ASes present in the Internet Routing Table: 17859
Origin ASes announcing only one prefix: 8010
Transit ASes present in the Internet Routing Table: 2873
Transit-only ASes present in the Internet Routing Table: 734
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: 46681
Number of 32-bit ASNs visible in the Routing Table: 8249
Prefixes from 32-bit ASNs in the Routing Table: 32688
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: 105
Number of addresses announced to Internet: 1566121989
Equivalent to 93 /8s, 89 /16s and 32 /24s
Percentage of available address space announced: 42.3
Percentage of allocated address space announced: 42.3
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: 87231
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33553
Total APNIC prefixes after maximum aggregation: 7486
APNIC Deaggregation factor: 4.48
Prefixes being announced from the APNIC address blocks: 32017
Unique aggregates announced from the APNIC address blocks: 7692
APNIC Region origin ASes present in the Internet Routing Table: 1219
APNIC Prefixes per ASN: 26.26
APNIC Region origin ASes announcing only one prefix: 476
APNIC Region transit ASes present in the Internet Routing Table: 200
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: 585
Number of APNIC addresses announced to Internet: 165173868
Equivalent to 9 /8s, 216 /16s and 90 /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: 125448
Total ARIN prefixes after maximum aggregation: 66193
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 123561
Unique aggregates announced from the ARIN address blocks: 67222
ARIN Region origin ASes present in the Internet Routing Table: 9315
ARIN Prefixes per ASN: 13.26
ARIN Region origin ASes announcing only one prefix: 3870
ARIN Region transit ASes present in the Internet Routing Table: 881
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: 2197
Number of ARIN addresses announced to Internet: 961689865
Equivalent to 57 /8s, 82 /16s and 57 /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: 50449
Total RIPE prefixes after maximum aggregation: 27338
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 52205
Unique aggregates announced from the RIPE address blocks: 38278
RIPE Region origin ASes present in the Internet Routing Table: 4707
RIPE Prefixes per ASN: 11.09
RIPE Region origin ASes announcing only one prefix: 1971
RIPE Region transit ASes present in the Internet Routing Table: 701
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1951
Number of RIPE addresses announced to Internet: 286649680
Equivalent to 17 /8s, 21 /16s and 237 /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: 53141
Total LACNIC prefixes after maximum aggregation: 15938
LACNIC Deaggregation factor: 3.33
Prefixes being announced from the LACNIC address blocks: 51575
Unique aggregates announced from the LACNIC address blocks: 23502
LACNIC Region origin ASes present in the Internet Routing Table: 4334
LACNIC Prefixes per ASN: 11.90
LACNIC Region origin ASes announcing only one prefix: 1583
LACNIC Region transit ASes present in the Internet Routing Table: 866
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: 3359
Number of LACNIC addresses announced to Internet: 106261824
Equivalent to 6 /8s, 85 /16s and 109 /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: 10576
Total AfriNIC prefixes after maximum aggregation: 2261
AfriNIC Deaggregation factor: 4.68
Prefixes being announced from the AfriNIC address blocks: 14075
Unique aggregates announced from the AfriNIC address blocks: 4958
AfriNIC Region origin ASes present in the Internet Routing Table: 293
AfriNIC Prefixes per ASN: 48.04
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: 157
Number of AfriNIC addresses announced to Internet: 46236672
Equivalent to 2 /8s, 193 /16s and 132 /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 11227 8759 113 CHINAMOBILE-CN China Mobile Communication
56046 2227 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication
24547 871 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
17561 626 40 223 LCS-AS-AP LARUS Limited, HK
2907 611 2169 463 SINET-AS Research Organization of Informa
45102 530 883 137 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
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 13598 40950 5214 AMAZON-02, US
22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2827 215 1713 USDA-1, US
36352 2569 210 1136 AS-COLOCROSSING, US
367 2419 3162 1151 DNIC-ASBLK-00306-00371, US
6167 1914 3955 513 CELLCO-PART, US
11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US
7018 1861 22863 1394 ATT-INTERNET4, 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 1192 92 969 AKAMAI-ASN1, NL
3257 1042 2082 805 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 816 1301 129 SAUDINETSTC-AS, SA
8452 788 1841 16 TE-AS TE-AS, EG
34984 678 74 414 TELLCOM-AS, TR
212238 660 47 584 CDNEXT, GB
8376 575 53 24 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 7146 1924 910 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 1197 371 22 Telefonica del Peru S.A.A., PE
26615 1053 2487 55 TIM SA, BR
18881 879 1127 31 TELEFONICA BRASIL S.A, BR
11172 722 124 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 1449 389 16 LINKdotNET-AS, EG
24835 1061 475 106 RAYA-AS, EG
29571 1049 100 72 ORANGE-COTE-IVOIRE, CI
36935 617 520 50 Vodafone-, EG
36914 572 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 553 1192 126 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
37069 451 1046 15 MOBINIL, EG
2018 375 318 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 13598 40950 5214 AMAZON-02, US
9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication
8151 7146 1924 910 UNINET, MX
22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2827 215 1713 USDA-1, US
36352 2569 210 1136 AS-COLOCROSSING, US
367 2419 3162 1151 DNIC-ASBLK-00306-00371, US
56046 2227 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 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou
8151 7146 6236 UNINET, MX
22773 3348 3184 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2227 2039 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1901 1687 ATLANTICBB-JOHNSTOWN, US
56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c
36352 2569 1433 AS-COLOCROSSING, US
56047 1483 1433 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
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, 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
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 /11:42 /12:150
/13:210 /14:576 /15:1100 /16:7600 /17:3466 /18:4249
/19:7668 /20:12695 /21:15611 /22:28353 /23:28882 /24:162657
/25:64 /26:81 /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 3875 7146 UNINET, MX
22773 2502 3348 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2345 13598 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1031 2569 AS-COLOCROSSING, US
19901 1012 1316 BRSPD-PUBLIC, US
10620 993 1711 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)
----------------------------------------------
1:18 2:453 3:816 4:5 5:800 6:148
7:5 8:655 11:171 12:964 13:389 14:115
15:308 16:246 17:4 18:889 20:188 21:4
22:188 23:2633 24:569 27:26 29:19 31:540
32:18 33:1 34:10 35:180 36:1979 37:876
38:2448 39:550 40:68 41:974 42:21 43:229
44:28 45:4224 46:994 47:96 49:21 50:360
51:387 52:1385 54:318 55:1094 56:11 57:22
58:16 59:38 60:32 61:84 62:549 63:746
64:1917 65:1098 66:1584 67:1070 68:375 69:1187
70:447 71:194 72:656 74:936 75:318 76:241
77:513 78:403 79:253 80:294 81:370 82:714
83:209 84:340 85:510 86:245 87:218 88:304
89:756 90:105 91:945 92:653 93:489 94:987
95:677 96:288 97:59 98:502 99:181 100:43
101:19 102:368 103:1296 104:1688 105:213 106:41
107:1558 108:551 109:446 110:40 111:1927 112:540
113:36 114:58 115:28 116:52 117:1051 118:66
119:84 120:1384 121:50 122:77 123:128 124:61
125:25 128:516 129:398 130:683 131:1030 132:567
133:213 134:458 135:127 136:606 137:508 138:958
139:427 140:709 141:362 142:1027 143:778 144:428
145:127 146:694 147:511 148:995 149:788 150:206
151:770 152:624 153:142 154:1436 155:861 156:1207
157:401 158:551 159:744 160:827 161:646 162:1056
163:429 164:731 165:568 166:806 167:687 168:1505
169:162 170:1675 171:115 172:1350 173:809 174:362
175:78 176:779 177:1135 178:605 179:826 180:41
181:2098 182:28 183:1027 184:460 185:3644 186:2505
187:1618 188:861 189:1952 190:5308 191:477 192:5230
193:1912 194:1245 195:933 196:706 197:1167 198:2747
199:4973 200:4449 201:3693 202:943 203:719 204:2198
205:1790 206:1585 207:1580 208:1498 209:1982 210:329
211:443 212:1015 213:767 214:920 215:35 216:2574
217:448 218:546 219:19 220:34 221:406 222:24
223:945
End of report
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