[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Jun 20 20:16:42 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 20 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: 261481
Prefixes after maximum aggregation (per Origin AS): 115097
Deaggregation factor: 2.27
Unique aggregates announced (without unneeded subnets): 135292
Number of IPv4 prefixes with a valid ROA: 117688
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 143751
Total ASes present in the Internet Routing Table: 19620
Prefixes per ASN: 13.33
Origin-only ASes present in the Internet Routing Table: 16954
Origin ASes announcing only one prefix: 7714
Transit ASes present in the Internet Routing Table: 2666
Transit-only ASes present in the Internet Routing Table: 688
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: 46692
Number of 32-bit ASNs visible in the Routing Table: 7376
Prefixes from 32-bit ASNs in the Routing Table: 28101
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: 108
Number of addresses announced to Internet: 1555642117
Equivalent to 92 /8s, 185 /16s and 55 /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: 82825
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32276
Total APNIC prefixes after maximum aggregation: 7143
APNIC Deaggregation factor: 4.52
Prefixes being announced from the APNIC address blocks: 31338
Unique aggregates announced from the APNIC address blocks: 7428
APNIC Region origin ASes present in the Internet Routing Table: 1191
APNIC Prefixes per ASN: 26.31
APNIC Region origin ASes announcing only one prefix: 465
APNIC Region transit ASes present in the Internet Routing Table: 191
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: 554
Number of APNIC addresses announced to Internet: 166505068
Equivalent to 9 /8s, 236 /16s and 170 /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: 124654
Total ARIN prefixes after maximum aggregation: 65745
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 122422
Unique aggregates announced from the ARIN address blocks: 66208
ARIN Region origin ASes present in the Internet Routing Table: 9315
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: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2191
Number of ARIN addresses announced to Internet: 960219913
Equivalent to 57 /8s, 59 /16s and 203 /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: 49399
Total RIPE prefixes after maximum aggregation: 26531
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51266
Unique aggregates announced from the RIPE address blocks: 37347
RIPE Region origin ASes present in the Internet Routing Table: 4626
RIPE Prefixes per ASN: 11.08
RIPE Region origin ASes announcing only one prefix: 1957
RIPE Region transit ASes present in the Internet Routing Table: 690
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: 1916
Number of RIPE addresses announced to Internet: 285996624
Equivalent to 17 /8s, 11 /16s and 246 /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: 44046
Total LACNIC prefixes after maximum aggregation: 13139
LACNIC Deaggregation factor: 3.35
Prefixes being announced from the LACNIC address blocks: 43157
Unique aggregates announced from the LACNIC address blocks: 19667
LACNIC Region origin ASes present in the Internet Routing Table: 3382
LACNIC Prefixes per ASN: 12.76
LACNIC Region origin ASes announcing only one prefix: 1309
LACNIC Region transit ASes present in the Internet Routing Table: 694
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2562
Number of LACNIC addresses announced to Internet: 96567360
Equivalent to 5 /8s, 193 /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: 10735
Total AfriNIC prefixes after maximum aggregation: 2277
AfriNIC Deaggregation factor: 4.71
Prefixes being announced from the AfriNIC address blocks: 13190
Unique aggregates announced from the AfriNIC address blocks: 4535
AfriNIC Region origin ASes present in the Internet Routing Table: 287
AfriNIC Prefixes per ASN: 45.96
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 77
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: 153
Number of AfriNIC addresses announced to Internet: 46306816
Equivalent to 2 /8s, 194 /16s and 150 /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 13626 40956 5233 AMAZON-02, US
22773 3347 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2805 213 1711 USDA-1, US
36352 2558 210 1131 AS-COLOCROSSING, US
367 2426 3163 1155 DNIC-ASBLK-00306-00371, US
7018 1948 22868 1452 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 1178 91 959 AKAMAI-ASN1, NL
3257 1015 2081 792 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 816 1301 129 SAUDINETSTC-AS, SA
8452 786 1841 16 TE-AS TE-AS, EG
34984 678 74 412 TELLCOM-AS, TR
212238 648 47 573 CDNEXT, GB
8376 574 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 7371 1993 932 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1672 243 1210 Telmex Colombia S.A., CO
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 22 Telefonica del Peru S.A.A., PE
26615 1048 2503 52 TIM SA, BR
18881 885 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 532 346 132 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 1449 389 16 LINKdotNET-AS, EG
29571 1159 101 74 ORANGE-COTE-IVOIRE, CI
24835 1062 476 108 RAYA-AS, EG
36935 609 521 43 Vodafone-, EG
36914 571 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 551 1192 124 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 13626 40956 5233 AMAZON-02, US
9808 11040 8759 104 CHINAMOBILE-CN China Mobile Communication
8151 7371 1993 932 UNINET, MX
22773 3347 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3227 54767 2478 DNIC-AS-00749, US
4155 2805 213 1711 USDA-1, US
36352 2558 210 1131 AS-COLOCROSSING, US
367 2426 3163 1155 DNIC-ASBLK-00306-00371, US
56046 2132 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 11040 10936 CHINAMOBILE-CN China Mobile Communications Grou
8151 7371 6439 UNINET, MX
22773 3347 3183 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2132 1944 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 1670 1580 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1449 1433 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
41.77.208.0/22 Origin: 37475 RESERVED, ZZ
41.77.208.0/22 Transit: 15964 CAMNET-AS, CM
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 /12:151
/13:207 /14:571 /15:1091 /16:7612 /17:3424 /18:4175
/19:7546 /20:12519 /21:15109 /22:27137 /23:27720 /24:153900
/25:63 /26:81 /27:34 /28:13 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3989 7371 UNINET, MX
22773 2501 3347 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2346 13626 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1034 2558 AS-COLOCROSSING, US
19901 1010 1313 BRSPD-PUBLIC, US
10620 967 1672 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 2:454 3:822 4:5 5:821 6:149
7:5 8:663 11:171 12:971 13:395 14:115
15:306 16:247 17:4 18:887 20:187 21:4
22:188 23:2611 24:705 27:23 29:19 31:530
32:9 33:1 34:10 35:179 36:1952 37:895
38:1976 39:550 40:58 41:1000 42:21 43:219
44:35 45:3546 46:967 47:97 49:19 50:355
51:387 52:1391 54:316 55:1083 56:11 57:22
58:16 59:30 60:16 61:83 62:526 63:746
64:1975 65:1084 66:1528 67:1001 68:399 69:1161
70:468 71:194 72:650 74:932 75:318 76:255
77:493 78:358 79:290 80:278 81:373 82:710
83:206 84:339 85:441 86:251 87:203 88:306
89:712 90:104 91:951 92:642 93:499 94:923
95:669 96:291 97:53 98:456 99:179 100:36
101:16 102:337 103:1195 104:1674 105:213 107:1562
108:551 109:397 110:35 111:1927 112:525 113:35
114:42 115:24 116:55 117:1045 118:57 119:82
120:1352 121:44 122:67 123:61 124:61 125:25
128:479 129:396 130:685 131:966 132:558 133:213
134:452 135:125 136:605 137:509 138:841 139:429
140:710 141:363 142:1030 143:699 144:425 145:120
146:683 147:506 148:891 149:782 150:203 151:637
152:475 153:142 154:944 155:870 156:871 157:374
158:564 159:741 160:884 161:640 162:1041 163:427
164:708 165:531 166:795 167:662 168:1126 169:159
170:1540 171:109 172:1357 173:812 174:294 175:68
176:773 177:804 178:499 179:682 180:40 181:1781
182:25 183:997 184:455 185:3545 186:2055 187:1539
188:824 189:1806 190:4111 191:454 192:5201 193:1887
194:1239 195:929 196:688 197:1198 198:2736 199:4958
200:3583 201:3299 202:944 203:725 204:2158 205:1739
206:1526 207:1528 208:1484 209:1959 210:297 211:428
212:1008 213:771 214:937 215:37 216:2567 217:424
218:527 219:19 220:28 221:395 222:24 223:899
End of report
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