[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Mar 24 20:17:02 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 24 Mar, 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: 270004
Prefixes after maximum aggregation (per Origin AS): 117451
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 141428
Number of IPv4 prefixes with a valid ROA: 122412
Number of IPv4 prefixes with an invalid ROA: 20
Number of IPv4 prefixes with no ROA: 147572
Total ASes present in the Internet Routing Table: 20712
Prefixes per ASN: 13.04
Origin-only ASes present in the Internet Routing Table: 17802
Origin ASes announcing only one prefix: 7945
Transit ASes present in the Internet Routing Table: 2910
Transit-only ASes present in the Internet Routing Table: 739
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: 279
Number of instances of unregistered ASNs: 280
Number of 32-bit ASNs allocated by the RIRs: 46129
Number of 32-bit ASNs visible in the Routing Table: 8166
Prefixes from 32-bit ASNs in the Routing Table: 31694
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: 1556758909
Equivalent to 92 /8s, 202 /16s and 65 /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: 86972
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32127
Total APNIC prefixes after maximum aggregation: 7653
APNIC Deaggregation factor: 4.20
Prefixes being announced from the APNIC address blocks: 30877
Unique aggregates announced from the APNIC address blocks: 8217
APNIC Region origin ASes present in the Internet Routing Table: 1217
APNIC Prefixes per ASN: 25.37
APNIC Region origin ASes announcing only one prefix: 486
APNIC Region transit ASes present in the Internet Routing Table: 213
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 555
Number of APNIC addresses announced to Internet: 169216620
Equivalent to 10 /8s, 22 /16s and 10 /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: 125515
Total ARIN prefixes after maximum aggregation: 64645
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 123151
Unique aggregates announced from the ARIN address blocks: 66754
ARIN Region origin ASes present in the Internet Routing Table: 9326
ARIN Prefixes per ASN: 13.21
ARIN Region origin ASes announcing only one prefix: 3874
ARIN Region transit ASes present in the Internet Routing Table: 875
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: 2154
Number of ARIN addresses announced to Internet: 961942785
Equivalent to 57 /8s, 86 /16s and 21 /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: 49792
Total RIPE prefixes after maximum aggregation: 27048
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 51535
Unique aggregates announced from the RIPE address blocks: 37887
RIPE Region origin ASes present in the Internet Routing Table: 4713
RIPE Prefixes per ASN: 10.93
RIPE Region origin ASes announcing only one prefix: 1976
RIPE Region transit ASes present in the Internet Routing Table: 701
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916
Number of RIPE addresses announced to Internet: 281316560
Equivalent to 16 /8s, 196 /16s and 140 /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: 51541
Total LACNIC prefixes after maximum aggregation: 15617
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 50162
Unique aggregates announced from the LACNIC address blocks: 24065
LACNIC Region origin ASes present in the Internet Routing Table: 4307
LACNIC Prefixes per ASN: 11.65
LACNIC Region origin ASes announcing only one prefix: 1492
LACNIC Region transit ASes present in the Internet Routing Table: 890
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3382
Number of LACNIC addresses announced to Internet: 100640832
Equivalent to 5 /8s, 255 /16s and 168 /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: 10750
Total AfriNIC prefixes after maximum aggregation: 2280
AfriNIC Deaggregation factor: 4.71
Prefixes being announced from the AfriNIC address blocks: 14163
Unique aggregates announced from the AfriNIC address blocks: 4391
AfriNIC Region origin ASes present in the Internet Routing Table: 286
AfriNIC Prefixes per ASN: 49.52
AfriNIC Region origin ASes announcing only one prefix: 117
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: 159
Number of AfriNIC addresses announced to Internet: 43591936
Equivalent to 2 /8s, 153 /16s and 41 /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 10143 8753 87 CHINAMOBILE-CN China Mobile Communication
56046 1572 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1491 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
17561 554 35 225 LCS-AS-AP LARUS Limited, HK
24445 511 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 478 779 138 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 12915 39640 3979 AMAZON-02, US
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2523 187 1539 USDA-1, US
367 2446 2902 1184 DNIC-ASBLK-00306-00371, US
36352 2330 195 1066 AS-COLOCROSSING, US
7018 2226 22910 1588 ATT-INTERNET4, US
11776 1879 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1806 3548 465 CELLCO-PART, US
209 1669 4890 278 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 1298 102 1043 AKAMAI-ASN1, NL
3257 927 2075 749 GTT-BACKBONE GTT, US
3215 926 4886 285 France Telecom - Orange, FR
25019 851 1290 134 SAUDINETSTC-AS, SA
34984 776 80 462 TELLCOM-AS, TR
203214 604 46 358 HULUMTELE, IQ
8452 602 1842 17 TE-AS TE-AS, EG
8376 572 53 25 Jordan Data Communications, JO
212238 570 41 503 CDNEXT, GB
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 7267 2011 999 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1735 256 1228 Telmex Colombia S.A., CO
3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1194 371 22 Telefonica del Peru S.A.A., PE
26615 1013 2503 53 TIM SA, BR
18881 881 1127 31 TELEFONICA BRASIL S.A, BR
28006 644 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 633 90 53 ENTEL CHILE S.A., CL
26599 543 2876 72 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 1477 389 16 LINKdotNET-AS, EG
29571 1237 101 70 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 815 508 43 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 544 82 3 KENET-AS, KE
37069 519 1047 18 MOBINIL, EG
36903 417 195 306 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 12915 39640 3979 AMAZON-02, US
9808 10143 8753 87 CHINAMOBILE-CN China Mobile Communication
8151 7267 2011 999 UNINET, MX
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2523 187 1539 USDA-1, US
367 2446 2902 1184 DNIC-ASBLK-00306-00371, US
36352 2330 195 1066 AS-COLOCROSSING, US
7018 2226 22910 1588 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 10143 10056 CHINAMOBILE-CN China Mobile Communications Grou
8151 7267 6268 UNINET, MX
22773 3373 3198 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1879 1662 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1477 1461 LINKdotNET-AS, EG
56047 1491 1438 CMNET-HUNAN-AP China Mobile communications corp
56046 1572 1393 CMNET-JIANGSU-AP China Mobile communications co
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
53966 UNALLOCATED 8.39.98.0/24 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
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
23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA
23.158.216.0/24 Transit: 22427 GNET-AS, 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
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 /11:42 /12:150
/13:218 /14:576 /15:1100 /16:7577 /17:3461 /18:4214
/19:7743 /20:12653 /21:15597 /22:28303 /23:28313 /24:159789
/25:60 /26:75 /27:35 /28:15 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3817 7267 UNINET, MX
22773 2515 3373 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2329 12915 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 980 1735 Telmex Colombia S.A., CO
209 964 1669 CENTURYLINK-US-LEGACY-QWEST, US
36352 930 2330 AS-COLOCROSSING, US
19901 903 1137 BRSPD-PUBLIC, US
11776 881 1879 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:67 2:498 3:594 4:5 5:835 6:150
7:5 8:641 11:171 12:1000 13:290 14:141
15:301 16:241 17:5 18:882 20:173 21:4
22:188 23:2544 24:954 27:24 29:19 31:480
32:18 34:10 35:133 36:1225 37:1143 38:2317
39:543 40:54 41:980 42:206 43:208 44:25
45:4208 46:960 47:84 49:54 50:352 51:365
52:1385 54:275 55:1077 56:11 57:18 58:45
59:38 60:16 61:61 62:538 63:777 64:1882
65:1092 66:1621 67:912 68:417 69:1189 70:436
71:213 72:868 74:984 75:431 76:246 77:511
78:355 79:337 80:314 81:346 82:678 83:245
84:353 85:562 86:252 87:248 88:292 89:852
90:104 91:1007 92:676 93:478 94:956 95:644
96:281 97:65 98:474 99:161 100:35 101:25
102:408 103:1254 104:1472 105:135 106:62 107:1484
108:545 109:387 110:56 111:1928 112:463 113:41
114:65 115:20 116:54 117:1048 118:168 119:132
120:1167 121:44 122:111 123:150 124:57 125:24
128:484 129:288 130:670 131:947 132:562 133:213
134:549 135:117 136:562 137:507 138:1030 139:433
140:709 141:429 142:972 143:705 144:418 145:75
146:697 147:496 148:858 149:736 150:373 151:699
152:518 153:127 154:1562 155:799 156:1380 157:375
158:505 159:672 160:955 161:740 162:1002 163:349
164:731 165:858 166:725 167:649 168:1513 169:145
170:1684 171:122 172:1413 173:815 174:254 175:53
176:686 177:1108 178:524 179:819 180:50 181:1905
182:45 183:878 184:502 185:3539 186:2483 187:1470
188:783 189:1765 190:5150 191:514 192:5124 193:1822
194:1247 195:945 196:811 197:1549 198:2698 199:4874
200:4054 201:3404 202:992 203:708 204:2111 205:2009
206:1563 207:1474 208:1371 209:1960 210:309 211:426
212:973 213:885 214:1011 215:42 216:2495 217:445
218:522 219:20 220:20 221:301 222:32 223:741
End of report
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