Routing Table Report 00:00 GMT Sun 30 Oct, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 382782
Prefixes after maximum aggregation: 167298
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 186241
Total ASes present in the Internet Routing Table: 39178
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32364
Origin ASes announcing only one prefix: 15488
Transit ASes present in the Internet Routing Table: 5249
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5229
Unregistered ASNs in the Routing Table: 854
Number of 32-bit ASNs allocated by the RIRs: 1914
Number of 32-bit ASNs visible in the Routing Table: 1565
Prefixes from 32-bit ASNs in the Routing Table: 3630
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2489525515
Equivalent to 148 /8s, 99 /16s and 37 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159758
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92776
Total APNIC prefixes after maximum aggregation: 29828
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 89331
Unique aggregates announced from the APNIC address blocks: 38059
APNIC Region origin ASes present in the Internet Routing Table: 4576
APNIC Prefixes per ASN: 19.52
APNIC Region origin ASes announcing only one prefix: 1274
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 97
Number of APNIC addresses announced to Internet: 629473024
Equivalent to 37 /8s, 132 /16s and 255 /24s
Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148468
Total ARIN prefixes after maximum aggregation: 76438
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120169
Unique aggregates announced from the ARIN address blocks: 48193
ARIN Region origin ASes present in the Internet Routing Table: 14728
ARIN Prefixes per ASN: 8.16
ARIN Region origin ASes announcing only one prefix: 5630
ARIN Region transit ASes present in the Internet Routing Table: 1539
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804793624
Equivalent to 47 /8s, 248 /16s and 45 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 93131
Total RIPE prefixes after maximum aggregation: 50987
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 84860
Unique aggregates announced from the RIPE address blocks: 54353
RIPE Region origin ASes present in the Internet Routing Table: 16091
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7974
RIPE Region transit ASes present in the Internet Routing Table: 2529
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1096
Number of RIPE addresses announced to Internet: 491589060
Equivalent to 29 /8s, 77 /16s and 13 /24s
Percentage of available RIPE address space announced: 79.2
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36067
Total LACNIC prefixes after maximum aggregation: 7935
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35401
Unique aggregates announced from the LACNIC address blocks: 18153
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.96
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 356
Number of LACNIC addresses announced to Internet: 92697096
Equivalent to 5 /8s, 134 /16s and 114 /24s
Percentage of available LACNIC address space announced: 61.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8536
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6628
Unique aggregates announced from the AfriNIC address blocks: 1964
AfriNIC Region origin ASes present in the Internet Routing Table: 494
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 112
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27900416
Equivalent to 1 /8s, 169 /16s and 186 /24s
Percentage of available AfriNIC address space announced: 41.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1942 11104 659 Korea Telecom (KIX)
17974 1891 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1611 303 87 TPG Internet Pty Ltd
4755 1532 377 171 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 8 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
4808 1106 2119 315 CNCGROUP IP network: China169
9583 1091 80 499 Sify Limited
24560 964 342 218 Bharti Airtel Ltd.
18101 953 166 149 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3544 3814 220 bellsouth.net, inc.
7029 2365 1034 210 Windstream Communications Inc
18566 2096 383 177 Covad Communications
1785 1844 680 122 AppliedTheory Corporation
4323 1623 1093 388 Time Warner Telecom
20115 1597 1547 622 Charter Communications
22773 1459 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1395 253 668 Mediacom Communications Corp
7018 1318 7047 862 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1448 352 13 Corbina telecom
286 1095 827 203 KPNQwest Backbone AS
6830 654 1927 415 UPC Distribution Services
34984 590 108 180 Tellcom Iletisim Hizmetleri
20940 553 185 425 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 531 2074 406 TDC Tele Danmark
3320 506 8169 386 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1699 314 156 TVCABLE BOGOTA
28573 1464 1040 72 Types of queries are: POCs, o
8151 1451 2908 344 Uninet S.A. de C.V.
7303 1231 748 177 Telecom Argentina Stet-France
27947 599 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 579 434 70 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 537 233 95 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 800 146 34 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 443 74 8 Nile Online
36992 301 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 219 18 14 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3544 3814 220 bellsouth.net, inc.
7029 2365 1034 210 Windstream Communications Inc
18566 2096 383 177 Covad Communications
4766 1942 11104 659 Korea Telecom (KIX)
17974 1891 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1844 680 122 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
4323 1623 1093 388 Time Warner Telecom
7545 1611 303 87 TPG Internet Pty Ltd
20115 1597 1547 622 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2365 2155 Windstream Communications Inc
18566 2096 1919 Covad Communications
17974 1891 1858 PT TELEKOMUNIKASI INDONESIA
1785 1844 1722 AppliedTheory Corporation
10620 1699 1543 TVCABLE BOGOTA
7545 1611 1524 TPG Internet Pty Ltd
8402 1448 1435 Corbina telecom
28573 1464 1392 Types of queries are: POCs, o
7552 1393 1385 Vietel Corporation
4755 1532 1361 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.1.0/24 286 KPNQwest Backbone AS
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:814 /15:1456 /16:12143 /17:6327 /18:10419
/19:20490 /20:28703 /21:27908 /22:37527 /23:35676 /24:198808
/25:67 /26:84 /27:111 /28:275 /29:112 /30:489
/31:53 /32:479
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3544 bellsouth.net, inc.
18566 2045 2096 Covad Communications
7029 2019 2365 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1425 1448 Corbina telecom
30036 1356 1395 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1056 1844 AppliedTheory Corporation
7011 1050 1168 Citizens Utilities
22773 947 1459 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:414 2:485 4:19 5:1 6:3 8:361
10:1 12:1957 13:1 14:543 15:11 16:3
17:7 20:9 23:60 24:1687 27:973 31:625
32:146 33:2 34:2 36:4 38:758 39:1
40:110 41:2677 42:53 44:3 46:1018 47:3
49:296 50:443 52:13 55:5 56:2 57:50
58:889 59:493 60:364 61:1175 62:1099 63:1976
64:4081 65:2308 66:4303 67:2021 68:1328 69:3310
70:928 71:383 72:1833 73:1 74:2661 75:405
76:325 77:880 78:862 79:476 80:1141 81:842
82:523 83:532 84:627 85:1131 86:411 87:894
88:359 89:1619 90:237 91:4256 92:531 93:1530
94:1308 95:1068 96:438 97:283 98:936 99:37
101:218 103:412 106:70 107:78 108:76 109:1062
110:667 111:796 112:333 113:486 114:619 115:710
116:911 117:719 118:916 119:1258 120:339 121:713
122:1569 123:1022 124:1354 125:1362 128:245 129:192
130:163 131:626 132:148 133:21 134:221 135:54
136:213 137:140 138:286 139:136 140:478 141:311
142:392 143:422 144:496 145:64 146:463 147:227
148:692 149:267 150:167 151:194 152:447 153:178
154:7 155:388 156:208 157:361 158:154 159:484
160:331 161:214 162:371 163:173 164:511 165:386
166:539 167:429 168:742 169:147 170:875 171:86
172:4 173:1735 174:680 175:432 176:280 177:368
178:1093 180:1126 181:36 182:659 183:221 184:383
185:1 186:1301 187:711 188:959 189:868 190:5148
192:5956 193:5055 194:3586 195:3137 196:1253 197:167
198:3630 199:4179 200:5504 201:1689 202:8581 203:8494
204:4304 205:2371 206:2686 207:2827 208:4036 209:3602
210:2733 211:1466 212:2136 213:1787 214:794 215:96
216:4936 217:1610 218:569 219:343 220:1253 221:516
222:346 223:272
End of report