[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun May 18 20:17:03 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 18 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: 264278
Prefixes after maximum aggregation (per Origin AS): 115831
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135100
Number of IPv4 prefixes with a valid ROA: 118246
Number of IPv4 prefixes with an invalid ROA: 28
Number of IPv4 prefixes with no ROA: 146004
Total ASes present in the Internet Routing Table: 19787
Prefixes per ASN: 13.36
Origin-only ASes present in the Internet Routing Table: 17116
Origin ASes announcing only one prefix: 7771
Transit ASes present in the Internet Routing Table: 2671
Transit-only ASes present in the Internet Routing Table: 715
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: 320
Number of instances of unregistered ASNs: 324
Number of 32-bit ASNs allocated by the RIRs: 46451
Number of 32-bit ASNs visible in the Routing Table: 7444
Prefixes from 32-bit ASNs in the Routing Table: 27778
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: 1554465501
Equivalent to 92 /8s, 167 /16s and 66 /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: 83485
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32406
Total APNIC prefixes after maximum aggregation: 7540
APNIC Deaggregation factor: 4.30
Prefixes being announced from the APNIC address blocks: 30821
Unique aggregates announced from the APNIC address blocks: 7633
APNIC Region origin ASes present in the Internet Routing Table: 1199
APNIC Prefixes per ASN: 25.71
APNIC Region origin ASes announcing only one prefix: 472
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: 545
Number of APNIC addresses announced to Internet: 167653740
Equivalent to 9 /8s, 254 /16s and 49 /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: 125750
Total ARIN prefixes after maximum aggregation: 65478
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 122938
Unique aggregates announced from the ARIN address blocks: 65861
ARIN Region origin ASes present in the Internet Routing Table: 9333
ARIN Prefixes per ASN: 13.17
ARIN Region origin ASes announcing only one prefix: 3891
ARIN Region transit ASes present in the Internet Routing Table: 866
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: 2183
Number of ARIN addresses announced to Internet: 960852449
Equivalent to 57 /8s, 69 /16s and 113 /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: 49920
Total RIPE prefixes after maximum aggregation: 26909
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51604
Unique aggregates announced from the RIPE address blocks: 37447
RIPE Region origin ASes present in the Internet Routing Table: 4637
RIPE Prefixes per ASN: 11.13
RIPE Region origin ASes announcing only one prefix: 1940
RIPE Region transit ASes present in the Internet Routing Table: 699
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: 1890
Number of RIPE addresses announced to Internet: 281942352
Equivalent to 16 /8s, 206 /16s and 25 /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: 44782
Total LACNIC prefixes after maximum aggregation: 13361
LACNIC Deaggregation factor: 3.35
Prefixes being announced from the LACNIC address blocks: 43827
Unique aggregates announced from the LACNIC address blocks: 19880
LACNIC Region origin ASes present in the Internet Routing Table: 3489
LACNIC Prefixes per ASN: 12.56
LACNIC Region origin ASes announcing only one prefix: 1356
LACNIC Region transit ASes present in the Internet Routing Table: 698
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 36
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2673
Number of LACNIC addresses announced to Internet: 97277760
Equivalent to 5 /8s, 204 /16s and 87 /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: 11100
Total AfriNIC prefixes after maximum aggregation: 2327
AfriNIC Deaggregation factor: 4.77
Prefixes being announced from the AfriNIC address blocks: 14972
Unique aggregates announced from the AfriNIC address blocks: 4165
AfriNIC Region origin ASes present in the Internet Routing Table: 287
AfriNIC Prefixes per ASN: 52.17
AfriNIC Region origin ASes announcing only one prefix: 112
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: 153
Number of AfriNIC addresses announced to Internet: 46688256
Equivalent to 2 /8s, 200 /16s and 104 /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 603 2170 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 13420 40823 5042 AMAZON-02, US
22773 3349 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2726 207 1671 USDA-1, US
36352 2543 209 1136 AS-COLOCROSSING, US
367 2440 2908 1170 DNIC-ASBLK-00306-00371, US
7018 2093 22887 1542 ATT-INTERNET4, US
11776 1896 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 815 1301 129 SAUDINETSTC-AS, SA
8452 777 1842 17 TE-AS TE-AS, EG
34984 685 76 408 TELLCOM-AS, TR
58224 641 390 437 TCI, IR
212238 625 44 551 CDNEXT, GB
8376 568 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 7464 2012 999 UNINET, MX
11830 1977 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 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1027 2503 52 TIM SA, BR
18881 883 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 1217 101 68 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 582 124 165 Vodafone-, EG
36914 544 82 3 KENET-AS, KE
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 13420 40823 5042 AMAZON-02, US
9808 10804 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7464 2012 999 UNINET, MX
22773 3349 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2726 207 1671 USDA-1, US
36352 2543 209 1136 AS-COLOCROSSING, US
367 2440 2908 1170 DNIC-ASBLK-00306-00371, US
7018 2093 22887 1542 ATT-INTERNET4, US
11830 1977 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 7464 6465 UNINET, MX
22773 3349 3185 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1977 1913 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1896 1680 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 /16:7638 /17:3457 /18:4223
/19:7676 /20:12418 /21:15313 /22:27513 /23:27798 /24:155894
/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 3993 7464 UNINET, MX
22773 2503 3349 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2330 13420 AMAZON-02, US
11830 1679 1977 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 975 1261 BRSPD-PUBLIC, US
209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1896 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 3:765 4:6 5:804 6:156
7:5 8:683 11:171 12:999 13:364 14:115
15:301 16:246 17:6 18:881 20:180 21:4
22:188 23:2580 24:638 27:21 29:19 31:509
32:10 33:1 34:10 35:133 36:1714 37:948
38:2043 39:554 40:62 41:952 42:21 43:202
44:36 45:3584 46:963 47:92 49:18 50:362
51:386 52:1388 54:308 55:1093 56:11 57:18
58:17 59:15 60:16 61:74 62:555 63:752
64:1917 65:1086 66:1540 67:959 68:397 69:1132
70:415 71:203 72:733 74:949 75:427 76:248
77:476 78:371 79:286 80:303 81:369 82:743
83:232 84:341 85:464 86:232 87:232 88:292
89:863 90:104 91:940 92:613 93:486 94:936
95:679 96:288 97:59 98:455 99:179 100:35
101:23 102:370 103:1203 104:1632 105:215 106:16
107:1523 108:546 109:388 110:35 111:1962 112:460
113:39 114:40 115:22 116:62 117:1047 118:38
119:124 120:1220 121:45 122:58 123:78 124:57
125:25 128:500 129:399 130:690 131:899 132:563
133:211 134:495 135:113 136:608 137:515 138:856
139:430 140:701 141:461 142:1024 143:675 144:434
145:135 146:682 147:492 148:869 149:774 150:353
151:644 152:494 153:129 154:1716 155:862 156:1451
157:372 158:551 159:722 160:940 161:668 162:980
163:360 164:740 165:776 166:787 167:628 168:1107
169:154 170:1624 171:121 172:1368 173:839 174:252
175:62 176:789 177:826 178:510 179:689 180:49
181:1821 182:29 183:930 184:450 185:3545 186:2041
187:1400 188:815 189:1761 190:4216 191:445 192:5174
193:1895 194:1237 195:961 196:711 197:1590 198:2730
199:4910 200:3595 201:3266 202:994 203:725 204:2145
205:1953 206:1538 207:1520 208:1433 209:1941 210:290
211:436 212:1067 213:851 214:979 215:42 216:2529
217:427 218:520 219:19 220:28 221:339 222:31
223:792
End of report
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