[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed May 28 20:16:32 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Wed 28 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: 263666
Prefixes after maximum aggregation (per Origin AS): 115885
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135358
Number of IPv4 prefixes with a valid ROA: 119002
Number of IPv4 prefixes with an invalid ROA: 43
Number of IPv4 prefixes with no ROA: 144621
Total ASes present in the Internet Routing Table: 19794
Prefixes per ASN: 13.32
Origin-only ASes present in the Internet Routing Table: 17100
Origin ASes announcing only one prefix: 7783
Transit ASes present in the Internet Routing Table: 2694
Transit-only ASes present in the Internet Routing Table: 725
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: 300
Number of instances of unregistered ASNs: 304
Number of 32-bit ASNs allocated by the RIRs: 46523
Number of 32-bit ASNs visible in the Routing Table: 7478
Prefixes from 32-bit ASNs in the Routing Table: 27943
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: 115
Number of addresses announced to Internet: 1557139677
Equivalent to 92 /8s, 208 /16s and 16 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 83018
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32648
Total APNIC prefixes after maximum aggregation: 7507
APNIC Deaggregation factor: 4.35
Prefixes being announced from the APNIC address blocks: 31049
Unique aggregates announced from the APNIC address blocks: 7580
APNIC Region origin ASes present in the Internet Routing Table: 1227
APNIC Prefixes per ASN: 25.30
APNIC Region origin ASes announcing only one prefix: 483
APNIC Region transit ASes present in the Internet Routing Table: 206
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 568
Number of APNIC addresses announced to Internet: 166650476
Equivalent to 9 /8s, 238 /16s and 226 /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: 125772
Total ARIN prefixes after maximum aggregation: 65998
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 122854
Unique aggregates announced from the ARIN address blocks: 66240
ARIN Region origin ASes present in the Internet Routing Table: 9332
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 3902
ARIN Region transit ASes present in the Internet Routing Table: 863
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: 960957153
Equivalent to 57 /8s, 71 /16s and 10 /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: 49273
Total RIPE prefixes after maximum aggregation: 26426
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51124
Unique aggregates announced from the RIPE address blocks: 37140
RIPE Region origin ASes present in the Internet Routing Table: 4594
RIPE Prefixes per ASN: 11.13
RIPE Region origin ASes announcing only one prefix: 1946
RIPE Region transit ASes present in the Internet Routing Table: 698
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: 1891
Number of RIPE addresses announced to Internet: 285357904
Equivalent to 17 /8s, 2 /16s and 55 /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: 44703
Total LACNIC prefixes after maximum aggregation: 13387
LACNIC Deaggregation factor: 3.34
Prefixes being announced from the LACNIC address blocks: 43826
Unique aggregates announced from the LACNIC address blocks: 19986
LACNIC Region origin ASes present in the Internet Routing Table: 3494
LACNIC Prefixes per ASN: 12.54
LACNIC Region origin ASes announcing only one prefix: 1337
LACNIC Region transit ASes present in the Internet Routing Table: 720
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: 2677
Number of LACNIC addresses announced to Internet: 97270080
Equivalent to 5 /8s, 204 /16s and 57 /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: 10970
Total AfriNIC prefixes after maximum aggregation: 2364
AfriNIC Deaggregation factor: 4.64
Prefixes being announced from the AfriNIC address blocks: 14698
Unique aggregates announced from the AfriNIC address blocks: 4298
AfriNIC Region origin ASes present in the Internet Routing Table: 294
AfriNIC Prefixes per ASN: 49.99
AfriNIC Region origin ASes announcing only one prefix: 115
AfriNIC Region transit ASes present in the Internet Routing Table: 79
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156
Number of AfriNIC addresses announced to Internet: 46853376
Equivalent to 2 /8s, 202 /16s and 237 /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 10863 8756 96 CHINAMOBILE-CN China Mobile Communication
56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication
24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 801 51 374 LCS-AS-AP LARUS Limited, HK
24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 605 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 517 848 138 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 13552 40827 5186 AMAZON-02, US
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2759 210 1695 USDA-1, US
36352 2560 210 1126 AS-COLOCROSSING, US
367 2442 2895 1174 DNIC-ASBLK-00306-00371, US
7018 2073 22882 1526 ATT-INTERNET4, US
11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US
6167 1885 3865 497 CELLCO-PART, US
209 1661 4889 271 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 1176 92 961 AKAMAI-ASN1, NL
3257 951 2078 765 GTT-BACKBONE GTT, US
3215 894 4818 289 France Telecom - Orange, FR
25019 812 1300 125 SAUDINETSTC-AS, SA
8452 779 1841 16 TE-AS TE-AS, EG
34984 675 74 405 TELLCOM-AS, TR
212238 637 46 563 CDNEXT, GB
203214 584 43 379 HULUMTELE, IQ
8376 575 53 21 Jordan Data Communications, JO
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 7334 1993 978 UNINET, MX
11830 1990 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 1198 371 22 Telefonica del Peru S.A.A., PE
26615 1041 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 647 77 297 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 1481 389 16 LINKdotNET-AS, EG
24835 1053 535 35 RAYA-AS, EG
29571 989 100 74 ORANGE-COTE-IVOIRE, CI
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 604 1228 124 ETISALAT-MISR, EG
36914 555 82 3 KENET-AS, KE
36935 546 117 156 Vodafone-, EG
37069 469 1046 15 MOBINIL, EG
36903 457 205 331 MT-MPLS, MA
2018 372 318 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 13552 40827 5186 AMAZON-02, US
9808 10863 8756 96 CHINAMOBILE-CN China Mobile Communication
8151 7334 1993 978 UNINET, MX
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2759 210 1695 USDA-1, US
36352 2560 210 1126 AS-COLOCROSSING, US
367 2442 2895 1174 DNIC-ASBLK-00306-00371, US
7018 2073 22882 1526 ATT-INTERNET4, US
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 10863 10767 CHINAMOBILE-CN China Mobile Communications Grou
8151 7334 6356 UNINET, MX
22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1990 1926 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
56046 1924 1737 CMNET-JIANGSU-AP China Mobile communications co
11776 1900 1689 ATLANTICBB-JOHNSTOWN, US
56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1481 1465 LINKdotNET-AS, EG
36352 2560 1434 AS-COLOCROSSING, US
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 /10:30 /11:41 /12:150
/13:209 /14:573 /15:1100 /16:7633 /17:3426 /18:4219
/19:7633 /20:12478 /21:15185 /22:27389 /23:27935 /24:155417
/25:62 /26:82 /27:36 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3943 7334 UNINET, MX
22773 2498 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2384 13552 AMAZON-02, US
11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1038 2560 AS-COLOCROSSING, US
19901 981 1271 BRSPD-PUBLIC, US
209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1900 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 2:472 3:789 4:5 5:794 6:155
7:5 8:675 11:171 12:992 13:382 14:115
15:303 16:247 17:6 18:888 20:185 21:4
22:188 23:2578 24:640 27:22 29:19 31:509
32:9 33:1 34:10 35:140 36:1783 37:1008
38:1920 39:551 40:62 41:993 42:21 43:206
44:34 45:3577 46:942 47:91 49:20 50:364
51:386 52:1395 54:316 55:1097 56:11 57:20
58:16 59:31 60:16 61:73 62:539 63:753
64:1881 65:1091 66:1538 67:962 68:398 69:1116
70:416 71:201 72:730 74:943 75:319 76:248
77:483 78:349 79:235 80:310 81:377 82:713
83:236 84:337 85:421 86:231 87:207 88:291
89:852 90:104 91:927 92:638 93:483 94:935
95:685 96:274 97:60 98:455 99:182 100:36
101:23 102:358 103:1223 104:1616 105:214 106:3
107:1525 108:550 109:395 110:35 111:1920 112:499
113:39 114:40 115:24 116:62 117:1043 118:71
119:89 120:1255 121:43 122:66 123:78 124:57
125:25 128:495 129:392 130:694 131:929 132:571
133:211 134:494 135:112 136:607 137:507 138:907
139:429 140:703 141:466 142:1026 143:690 144:441
145:132 146:671 147:515 148:874 149:759 150:353
151:633 152:489 153:129 154:1682 155:864 156:1354
157:386 158:555 159:730 160:812 161:636 162:1001
163:429 164:718 165:781 166:791 167:648 168:1105
169:156 170:1539 171:121 172:1341 173:851 174:253
175:60 176:779 177:797 178:502 179:687 180:45
181:1819 182:29 183:958 184:452 185:3494 186:2081
187:1431 188:826 189:1727 190:4225 191:447 192:5183
193:1868 194:1228 195:927 196:681 197:1570 198:2739
199:4921 200:3678 201:3278 202:1007 203:748 204:2165
205:1948 206:1534 207:1517 208:1418 209:1906 210:297
211:421 212:1029 213:779 214:982 215:42 216:2533
217:426 218:525 219:18 220:28 221:360 222:31
223:824
End of report
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