[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jun 3 20:16:32 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 03 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: 264853
Prefixes after maximum aggregation (per Origin AS): 116168
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 136078
Number of IPv4 prefixes with a valid ROA: 119577
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 145234
Total ASes present in the Internet Routing Table: 19952
Prefixes per ASN: 13.27
Origin-only ASes present in the Internet Routing Table: 17223
Origin ASes announcing only one prefix: 7804
Transit ASes present in the Internet Routing Table: 2729
Transit-only ASes present in the Internet Routing Table: 720
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: 30
Max AS path prepend of ASN (266745) 25
Prefixes from unregistered ASNs in the Routing Table: 311
Number of instances of unregistered ASNs: 315
Number of 32-bit ASNs allocated by the RIRs: 46558
Number of 32-bit ASNs visible in the Routing Table: 7640
Prefixes from 32-bit ASNs in the Routing Table: 28650
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: 109
Number of addresses announced to Internet: 1557311197
Equivalent to 92 /8s, 210 /16s and 174 /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: 83355
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32679
Total APNIC prefixes after maximum aggregation: 7480
APNIC Deaggregation factor: 4.37
Prefixes being announced from the APNIC address blocks: 31084
Unique aggregates announced from the APNIC address blocks: 7559
APNIC Region origin ASes present in the Internet Routing Table: 1223
APNIC Prefixes per ASN: 25.42
APNIC Region origin ASes announcing only one prefix: 479
APNIC Region transit ASes present in the Internet Routing Table: 199
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: 566
Number of APNIC addresses announced to Internet: 166652268
Equivalent to 9 /8s, 238 /16s and 233 /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: 126285
Total ARIN prefixes after maximum aggregation: 66037
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 123316
Unique aggregates announced from the ARIN address blocks: 66564
ARIN Region origin ASes present in the Internet Routing Table: 9340
ARIN Prefixes per ASN: 13.20
ARIN Region origin ASes announcing only one prefix: 3906
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: 2187
Number of ARIN addresses announced to Internet: 960788705
Equivalent to 57 /8s, 68 /16s and 120 /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: 49469
Total RIPE prefixes after maximum aggregation: 26587
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51362
Unique aggregates announced from the RIPE address blocks: 37357
RIPE Region origin ASes present in the Internet Routing Table: 4595
RIPE Prefixes per ASN: 11.18
RIPE Region origin ASes announcing only one prefix: 1935
RIPE Region transit ASes present in the Internet Routing Table: 689
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: 1892
Number of RIPE addresses announced to Internet: 285830480
Equivalent to 17 /8s, 9 /16s and 109 /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: 45033
Total LACNIC prefixes after maximum aggregation: 13518
LACNIC Deaggregation factor: 3.33
Prefixes being announced from the LACNIC address blocks: 44226
Unique aggregates announced from the LACNIC address blocks: 20199
LACNIC Region origin ASes present in the Internet Routing Table: 3658
LACNIC Prefixes per ASN: 12.09
LACNIC Region origin ASes announcing only one prefix: 1369
LACNIC Region transit ASes present in the Internet Routing Table: 765
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: 2836
Number of LACNIC addresses announced to Internet: 97215552
Equivalent to 5 /8s, 203 /16s and 100 /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: 11076
Total AfriNIC prefixes after maximum aggregation: 2336
AfriNIC Deaggregation factor: 4.74
Prefixes being announced from the AfriNIC address blocks: 14756
Unique aggregates announced from the AfriNIC address blocks: 4291
AfriNIC Region origin ASes present in the Internet Routing Table: 291
AfriNIC Prefixes per ASN: 50.71
AfriNIC Region origin ASes announcing only one prefix: 115
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 159
Number of AfriNIC addresses announced to Internet: 46779904
Equivalent to 2 /8s, 201 /16s and 206 /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 10880 8756 96 CHINAMOBILE-CN China Mobile Communication
56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1633 718 90 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 850 54 376 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 516 848 138 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 13627 40828 5196 AMAZON-02, US
22773 3344 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2754 210 1688 USDA-1, US
36352 2546 209 1121 AS-COLOCROSSING, US
367 2451 2913 1177 DNIC-ASBLK-00306-00371, US
7018 2066 22882 1519 ATT-INTERNET4, US
11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US
6167 1887 3867 499 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 1171 91 956 AKAMAI-ASN1, NL
3257 997 2080 779 GTT-BACKBONE GTT, US
3215 894 4818 289 France Telecom - Orange, FR
25019 817 1301 129 SAUDINETSTC-AS, SA
8452 791 1841 16 TE-AS TE-AS, EG
34984 673 73 404 TELLCOM-AS, TR
212238 641 47 567 CDNEXT, GB
203214 597 44 398 HULUMTELE, IQ
8376 577 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 7409 1988 971 UNINET, MX
11830 1991 369 64 Instituto Costarricense de Electricidad y
10620 1902 281 1294 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1199 371 22 Telefonica del Peru S.A.A., PE
26615 1035 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 628 90 34 ENTEL CHILE S.A., CL
26599 553 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 1463 389 16 LINKdotNET-AS, EG
29571 1151 100 74 ORANGE-COTE-IVOIRE, CI
24835 1053 535 35 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 604 1228 124 ETISALAT-MISR, EG
36935 577 122 154 Vodafone-, EG
36914 551 82 3 KENET-AS, KE
37069 469 1046 15 MOBINIL, EG
36903 444 206 314 MT-MPLS, MA
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 13627 40828 5196 AMAZON-02, US
9808 10880 8756 96 CHINAMOBILE-CN China Mobile Communication
8151 7409 1988 971 UNINET, MX
22773 3344 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2754 210 1688 USDA-1, US
36352 2546 209 1121 AS-COLOCROSSING, US
367 2451 2913 1177 DNIC-ASBLK-00306-00371, US
7018 2066 22882 1519 ATT-INTERNET4, US
11830 1991 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 10880 10784 CHINAMOBILE-CN China Mobile Communications Grou
8151 7409 6438 UNINET, MX
22773 3344 3178 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1991 1927 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 1633 1543 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1463 1447 LINKdotNET-AS, EG
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
23.152.48.0/24 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 /15:1101 /16:7627 /17:3423 /18:4195
/19:7618 /20:12483 /21:15237 /22:27556 /23:28077 /24:156288
/25:62 /26:81 /27:34 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3985 7409 UNINET, MX
22773 2495 3344 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2386 13627 AMAZON-02, US
11830 1694 1991 Instituto Costarricense de Electricidad y Telecom., CR
10620 1082 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1034 2546 AS-COLOCROSSING, US
19901 984 1278 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 2:470 3:802 4:5 5:788 6:155
7:5 8:672 11:171 12:988 13:382 14:115
15:305 16:247 17:6 18:886 20:187 21:4
22:188 23:2569 24:638 27:22 29:19 31:522
32:9 33:1 34:10 35:177 36:1831 37:1015
38:1904 39:552 40:62 41:991 42:21 43:210
44:35 45:3703 46:951 47:92 49:20 50:350
51:384 52:1399 54:318 55:1053 56:11 57:20
58:16 59:32 60:15 61:74 62:536 63:749
64:1976 65:1095 66:1525 67:992 68:402 69:1129
70:477 71:199 72:720 74:942 75:320 76:248
77:488 78:348 79:244 80:315 81:374 82:715
83:235 84:337 85:417 86:233 87:207 88:296
89:867 90:104 91:938 92:635 93:487 94:923
95:681 96:292 97:53 98:456 99:188 100:36
101:18 102:344 103:1226 104:1658 105:207 106:3
107:1556 108:553 109:399 110:35 111:1918 112:499
113:39 114:40 115:23 116:62 117:1042 118:62
119:89 120:1265 121:43 122:67 123:76 124:57
125:25 128:491 129:397 130:683 131:947 132:572
133:211 134:498 135:112 136:597 137:507 138:913
139:440 140:701 141:462 142:1031 143:698 144:444
145:152 146:683 147:516 148:875 149:791 150:353
151:637 152:482 153:129 154:1656 155:851 156:1390
157:370 158:555 159:735 160:870 161:614 162:1008
163:482 164:718 165:777 166:793 167:659 168:1140
169:160 170:1594 171:122 172:1376 173:798 174:285
175:62 176:783 177:893 178:512 179:710 180:41
181:1797 182:28 183:965 184:452 185:3515 186:2063
187:1463 188:832 189:1772 190:4132 191:459 192:5175
193:1889 194:1230 195:935 196:689 197:1546 198:2747
199:4917 200:3647 201:3278 202:1005 203:741 204:2161
205:1952 206:1532 207:1536 208:1451 209:1892 210:297
211:422 212:1024 213:774 214:983 215:42 216:2554
217:424 218:525 219:18 220:28 221:360 222:31
223:823
End of report
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