Routing Table Report 00:00 GMT Thu 03 Nov, 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: 383660
Prefixes after maximum aggregation: 167515
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 186892
Total ASes present in the Internet Routing Table: 39241
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 32390
Origin ASes announcing only one prefix: 15512
Transit ASes present in the Internet Routing Table: 5271
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5294
Unregistered ASNs in the Routing Table: 866
Number of 32-bit ASNs allocated by the RIRs: 1922
Number of 32-bit ASNs visible in the Routing Table: 1580
Prefixes from 32-bit ASNs in the Routing Table: 3670
Special use prefixes present in the Routing Table: 84
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2489926849
Equivalent to 148 /8s, 105 /16s and 68 /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: 160665
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92589
Total APNIC prefixes after maximum aggregation: 29917
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89140
Unique aggregates announced from the APNIC address blocks: 38201
APNIC Region origin ASes present in the Internet Routing Table: 4581
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1275
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 100
Number of APNIC addresses announced to Internet: 629396736
Equivalent to 37 /8s, 131 /16s and 213 /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: 148577
Total ARIN prefixes after maximum aggregation: 76505
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120246
Unique aggregates announced from the ARIN address blocks: 48233
ARIN Region origin ASes present in the Internet Routing Table: 14750
ARIN Prefixes per ASN: 8.15
ARIN Region origin ASes announcing only one prefix: 5642
ARIN Region transit ASes present in the Internet Routing Table: 1556
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: 804719384
Equivalent to 47 /8s, 247 /16s and 11 /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: 93530
Total RIPE prefixes after maximum aggregation: 51012
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85251
Unique aggregates announced from the RIPE address blocks: 54365
RIPE Region origin ASes present in the Internet Routing Table: 16099
RIPE Prefixes per ASN: 5.30
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2539
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1104
Number of RIPE addresses announced to Internet: 491657164
Equivalent to 29 /8s, 78 /16s and 23 /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: 36524
Total LACNIC prefixes after maximum aggregation: 7953
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35834
Unique aggregates announced from the LACNIC address blocks: 18540
LACNIC Region origin ASes present in the Internet Routing Table: 1544
LACNIC Prefixes per ASN: 23.21
LACNIC Region origin ASes announcing only one prefix: 449
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: 360
Number of LACNIC addresses announced to Internet: 92781832
Equivalent to 5 /8s, 135 /16s and 189 /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: 8586
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6668
Unique aggregates announced from the AfriNIC address blocks: 1987
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 13.28
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.3
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: 27925760
Equivalent to 1 /8s, 170 /16s and 29 /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 1947 11121 664 Korea Telecom (KIX)
17974 1624 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1611 303 87 TPG Internet Pty Ltd
4755 1535 377 171 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 8 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
4808 1102 2111 311 CNCGROUP IP network: China169
9583 1093 80 498 Sify Limited
24560 964 342 218 Bharti Airtel Ltd.
18101 954 135 150 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 3543 3814 220 bellsouth.net, inc.
7029 2363 1041 207 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 123 AppliedTheory Corporation
4323 1623 1094 389 Time Warner Telecom
20115 1596 1547 621 Charter Communications
22773 1460 2907 100 Cox Communications, Inc.
30036 1396 253 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1317 7046 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 1552 416 14 Corbina telecom
286 1080 827 201 KPNQwest Backbone AS
6830 653 1927 414 UPC Distribution Services
34984 595 110 183 Tellcom Iletisim Hizmetleri
3292 581 2074 410 TDC Tele Danmark
9116 540 326 31 Goldenlines main autonomous s
20940 538 181 420 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
12479 481 596 9 Uni2 Autonomous System
8866 462 133 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
8151 1467 2910 343 Uninet S.A. de C.V.
28573 1461 1043 78 Types of queries are: POCs, o
7303 1236 751 171 Telecom Argentina Stet-France
27947 603 72 85 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 577 434 69 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 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 443 74 8 Nile Online
36992 298 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 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 3543 3814 220 bellsouth.net, inc.
7029 2363 1041 207 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1947 11121 664 Korea Telecom (KIX)
1785 1844 680 123 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
17974 1624 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1623 1094 389 Time Warner Telecom
7545 1611 303 87 TPG Internet Pty Ltd
20115 1596 1547 621 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 2363 2156 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1844 1721 AppliedTheory Corporation
17974 1624 1588 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
8402 1552 1538 Corbina telecom
7545 1611 1524 TPG Internet Pty Ltd
7552 1393 1385 Vietel Corporation
28573 1461 1383 Types of queries are: POCs, o
4755 1535 1364 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
10.29.244.56/29 286 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
10.29.245.26/32 286 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 /15:1454 /16:12145 /17:6313 /18:10422
/19:20486 /20:28716 /21:27996 /22:37468 /23:35666 /24:199627
/25:68 /26:86 /27:116 /28:280 /29:111 /30:483
/31:52 /32:516
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2183 3543 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 2018 2363 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1528 1552 Corbina telecom
30036 1357 1396 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1056 1844 AppliedTheory Corporation
7011 1050 1168 Citizens Utilities
22773 948 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:419 2:493 4:19 5:1 6:3 8:362
12:1958 13:1 14:542 15:11 16:3 17:7
20:9 23:59 24:1685 27:972 31:670 32:146
33:2 34:2 36:4 38:759 39:1 40:110
41:2703 42:55 44:3 46:1022 47:3 49:299
50:442 52:13 55:7 56:2 57:57 58:906
59:494 60:362 61:1126 62:1098 63:1984 64:4081
65:2304 66:4299 67:2030 68:1330 69:3295 70:928
71:384 72:1834 73:1 74:2659 75:405 76:326
77:882 78:886 79:478 80:1142 81:846 82:538
83:533 84:631 85:1149 86:407 87:931 88:361
89:1614 90:237 91:4258 92:538 93:1556 94:1308
95:1128 96:431 97:286 98:940 99:37 101:226
103:422 106:70 107:82 108:76 109:1166 110:665
111:799 112:341 113:486 114:622 115:708 116:910
117:722 118:889 119:1267 120:340 121:714 122:1564
123:1016 124:1351 125:1355 128:245 129:193 130:165
131:625 132:148 133:21 134:222 135:54 136:212
137:140 138:286 139:136 140:487 141:317 142:390
143:416 144:492 145:64 146:467 147:229 148:691
149:267 150:165 151:194 152:446 153:178 154:7
155:385 156:208 157:361 158:154 159:485 160:333
161:214 162:371 163:173 164:511 165:387 166:540
167:437 168:744 169:146 170:880 171:86 172:4
173:1724 174:683 175:432 176:287 177:366 178:1084
180:1141 181:38 182:652 183:222 184:385 185:1
186:1325 187:777 188:1013 189:1125 190:5168 192:5958
193:5067 194:3582 195:3134 196:1254 197:167 198:3634
199:4177 200:5533 201:1690 202:8557 203:8488 204:4306
205:2372 206:2696 207:2827 208:4039 209:3613 210:2739
211:1464 212:2122 213:1791 214:806 215:96 216:4937
217:1603 218:568 219:342 220:1262 221:517 222:324
223:265
End of report
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