[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat May 17 20:17:01 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 17 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: 263913
Prefixes after maximum aggregation (per Origin AS): 115730
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135129
Number of IPv4 prefixes with a valid ROA: 118782
Number of IPv4 prefixes with an invalid ROA: 36
Number of IPv4 prefixes with no ROA: 145095
Total ASes present in the Internet Routing Table: 19771
Prefixes per ASN: 13.35
Origin-only ASes present in the Internet Routing Table: 17091
Origin ASes announcing only one prefix: 7758
Transit ASes present in the Internet Routing Table: 2680
Transit-only ASes present in the Internet Routing Table: 724
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: 313
Number of instances of unregistered ASNs: 317
Number of 32-bit ASNs allocated by the RIRs: 46439
Number of 32-bit ASNs visible in the Routing Table: 7437
Prefixes from 32-bit ASNs in the Routing Table: 27728
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: 116
Number of addresses announced to Internet: 1554082013
Equivalent to 92 /8s, 161 /16s and 104 /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: 83378
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32334
Total APNIC prefixes after maximum aggregation: 7509
APNIC Deaggregation factor: 4.31
Prefixes being announced from the APNIC address blocks: 30796
Unique aggregates announced from the APNIC address blocks: 7603
APNIC Region origin ASes present in the Internet Routing Table: 1200
APNIC Prefixes per ASN: 25.66
APNIC Region origin ASes announcing only one prefix: 473
APNIC Region transit ASes present in the Internet Routing Table: 204
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: 547
Number of APNIC addresses announced to Internet: 167584364
Equivalent to 9 /8s, 253 /16s and 34 /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: 125806
Total ARIN prefixes after maximum aggregation: 65508
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 122970
Unique aggregates announced from the ARIN address blocks: 65987
ARIN Region origin ASes present in the Internet Routing Table: 9344
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 3901
ARIN Region transit ASes present in the Internet Routing Table: 870
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: 2186
Number of ARIN addresses announced to Internet: 960895713
Equivalent to 57 /8s, 70 /16s and 26 /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: 49568
Total RIPE prefixes after maximum aggregation: 26822
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51222
Unique aggregates announced from the RIPE address blocks: 37364
RIPE Region origin ASes present in the Internet Routing Table: 4614
RIPE Prefixes per ASN: 11.10
RIPE Region origin ASes announcing only one prefix: 1925
RIPE Region transit ASes present in the Internet Routing Table: 694
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: 1882
Number of RIPE addresses announced to Internet: 281565008
Equivalent to 16 /8s, 200 /16s and 87 /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: 44808
Total LACNIC prefixes after maximum aggregation: 13341
LACNIC Deaggregation factor: 3.36
Prefixes being announced from the LACNIC address blocks: 43867
Unique aggregates announced from the LACNIC address blocks: 19888
LACNIC Region origin ASes present in the Internet Routing Table: 3478
LACNIC Prefixes per ASN: 12.61
LACNIC Region origin ASes announcing only one prefix: 1350
LACNIC Region transit ASes present in the Internet Routing Table: 701
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: 2669
Number of LACNIC addresses announced to Internet: 97276992
Equivalent to 5 /8s, 204 /16s and 84 /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: 11084
Total AfriNIC prefixes after maximum aggregation: 2338
AfriNIC Deaggregation factor: 4.74
Prefixes being announced from the AfriNIC address blocks: 14942
Unique aggregates announced from the AfriNIC address blocks: 4173
AfriNIC Region origin ASes present in the Internet Routing Table: 284
AfriNIC Prefixes per ASN: 52.61
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 79
Average AfriNIC Region AS path length visible: 6.7
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: 46708992
Equivalent to 2 /8s, 200 /16s and 185 /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 10804 8756 95 CHINAMOBILE-CN China Mobile Communication
56046 1772 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 847 54 398 LCS-AS-AP LARUS Limited, HK
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 601 2154 464 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 13415 40825 5032 AMAZON-02, US
22773 3340 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2726 207 1675 USDA-1, US
36352 2543 209 1136 AS-COLOCROSSING, US
367 2447 2909 1177 DNIC-ASBLK-00306-00371, US
7018 2093 22887 1542 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1860 3758 488 CELLCO-PART, US
209 1663 4890 273 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 1177 92 966 AKAMAI-ASN1, NL
3257 931 2076 748 GTT-BACKBONE GTT, US
3215 895 4818 289 France Telecom - Orange, FR
25019 813 1301 129 SAUDINETSTC-AS, SA
8452 773 1842 17 TE-AS TE-AS, EG
34984 688 76 411 TELLCOM-AS, TR
212238 624 44 550 CDNEXT, GB
8376 569 53 21 Jordan Data Communications, JO
58224 569 318 402 TCI, IR
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 7465 2012 998 UNINET, MX
11830 1993 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 1196 371 22 Telefonica del Peru S.A.A., PE
26615 1027 2503 52 TIM SA, BR
18881 881 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 1182 100 73 ORANGE-COTE-IVOIRE, CI
24835 1037 523 36 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 603 1228 124 ETISALAT-MISR, EG
36935 585 125 166 Vodafone-, EG
36914 539 82 3 KENET-AS, KE
37069 504 1046 15 MOBINIL, EG
36903 457 205 331 MT-MPLS, MA
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 13415 40825 5032 AMAZON-02, US
9808 10804 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7465 2012 998 UNINET, MX
22773 3340 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2726 207 1675 USDA-1, US
36352 2543 209 1136 AS-COLOCROSSING, US
367 2447 2909 1177 DNIC-ASBLK-00306-00371, US
7018 2093 22887 1542 ATT-INTERNET4, US
11830 1993 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 10804 10709 CHINAMOBILE-CN China Mobile Communications Grou
8151 7465 6467 UNINET, MX
22773 3340 3176 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56046 1772 1586 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 /16:7637 /17:3454 /18:4208
/19:7677 /20:12384 /21:15309 /22:27460 /23:27796 /24:155640
/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 3994 7465 UNINET, MX
22773 2494 3340 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2331 13415 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1025 2543 AS-COLOCROSSING, US
19901 978 1264 BRSPD-PUBLIC, US
209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1895 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 2:474 3:758 4:6 5:800 6:155
7:5 8:682 11:171 12:997 13:363 14:115
15:301 16:246 17:6 18:883 20:177 21:4
22:188 23:2594 24:638 27:21 29:19 31:507
32:9 33:1 34:10 35:133 36:1714 37:927
38:2015 39:554 40:62 41:941 42:21 43:203
44:36 45:3596 46:961 47:92 49:18 50:362
51:386 52:1389 54:310 55:1093 56:11 57:18
58:17 59:15 60:16 61:74 62:561 63:752
64:2002 65:1087 66:1580 67:960 68:391 69:1128
70:415 71:202 72:733 74:949 75:427 76:248
77:470 78:369 79:286 80:302 81:368 82:743
83:232 84:343 85:459 86:233 87:231 88:293
89:864 90:104 91:932 92:616 93:485 94:918
95:670 96:288 97:59 98:452 99:179 100:35
101:19 102:386 103:1202 104:1629 105:217 106:16
107:1524 108:546 109:385 110:35 111:1960 112:460
113:39 114:40 115:22 116:62 117:1047 118:30
119:124 120:1220 121:45 122:58 123:76 124:57
125:25 128:495 129:393 130:687 131:894 132:563
133:212 134:494 135:113 136:610 137:515 138:855
139:430 140:701 141:454 142:1023 143:680 144:435
145:136 146:681 147:490 148:864 149:788 150:351
151:643 152:479 153:129 154:1709 155:843 156:1425
157:372 158:550 159:723 160:932 161:668 162:977
163:359 164:720 165:769 166:788 167:629 168:1109
169:153 170:1624 171:125 172:1367 173:835 174:252
175:63 176:685 177:828 178:491 179:689 180:49
181:1825 182:29 183:930 184:444 185:3518 186:2042
187:1399 188:809 189:1762 190:4237 191:449 192:5177
193:1891 194:1235 195:960 196:712 197:1565 198:2732
199:4907 200:3594 201:3275 202:993 203:726 204:2144
205:1957 206:1542 207:1517 208:1436 209:1938 210:290
211:436 212:1067 213:846 214:981 215:42 216:2525
217:427 218:520 219:19 220:28 221:339 222:31
223:792
End of report
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