Routing Table Report 00:00 GMT Fri 23 Mar, 2012
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: 405883
Prefixes after maximum aggregation: 172583
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195369
Total ASes present in the Internet Routing Table: 40507
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32919
Origin ASes announcing only one prefix: 15533
Transit ASes present in the Internet Routing Table: 5467
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5693
Unregistered ASNs in the Routing Table: 250
Number of 32-bit ASNs allocated by the RIRs: 2328
Number of 32-bit ASNs visible in the Routing Table: 2121
Prefixes from 32-bit ASNs in the Routing Table: 5158
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 872
Number of addresses announced to Internet: 2529157333
Equivalent to 150 /8s, 191 /16s and 224 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171189
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96469
Total APNIC prefixes after maximum aggregation: 30924
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 92966
Unique aggregates announced from the APNIC address blocks: 39377
APNIC Region origin ASes present in the Internet Routing Table: 4666
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 741
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 167
Number of APNIC addresses announced to Internet: 641228544
Equivalent to 38 /8s, 56 /16s and 95 /24s
Percentage of available APNIC address space announced: 81.3
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: 151787
Total ARIN prefixes after maximum aggregation: 77964
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123107
Unique aggregates announced from the ARIN address blocks: 49897
ARIN Region origin ASes present in the Internet Routing Table: 14971
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5695
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 806697984
Equivalent to 48 /8s, 21 /16s and 60 /24s
Percentage of available ARIN address space announced: 64.1
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: 103560
Total RIPE prefixes after maximum aggregation: 53264
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 94009
Unique aggregates announced from the RIPE address blocks: 57172
RIPE Region origin ASes present in the Internet Routing Table: 16373
RIPE Prefixes per ASN: 5.74
RIPE Region origin ASes announcing only one prefix: 7983
RIPE Region transit ASes present in the Internet Routing Table: 2660
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1443
Number of RIPE addresses announced to Internet: 502410380
Equivalent to 29 /8s, 242 /16s and 44 /24s
Percentage of available RIPE address space announced: 80.9
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: 39756
Total LACNIC prefixes after maximum aggregation: 8107
LACNIC Deaggregation factor: 4.90
Prefixes being announced from the LACNIC address blocks: 39406
Unique aggregates announced from the LACNIC address blocks: 19633
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 25.08
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 292
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 490
Number of LACNIC addresses announced to Internet: 98622984
Equivalent to 5 /8s, 224 /16s and 222 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8777
Total AfriNIC prefixes after maximum aggregation: 2141
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6862
Unique aggregates announced from the AfriNIC address blocks: 2252
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.10
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31511296
Equivalent to 1 /8s, 224 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1932 11102 681 Korea Telecom (KIX)
17974 1759 503 64 PT TELEKOMUNIKASI INDONESIA
7545 1652 303 89 TPG Internet Pty Ltd
4755 1573 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 542 Sify Limited
9829 1187 1001 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
24560 1014 384 166 Bharti Airtel Ltd.
18101 947 130 159 Reliance Infocom Ltd Internet
4808 924 1874 268 CNCGROUP IP network: China169
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
7029 3375 990 155 Windstream Communications Inc
6389 3374 3807 197 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1880 680 127 AppliedTheory Corporation
20115 1634 1558 629 Charter Communications
4323 1576 1073 372 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1401 253 745 Mediacom Communications Corp
7018 1278 9647 835 AT&T WorldNet Services
11492 1165 212 413 Cable One
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 1783 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1071 854 202 KPNQwest Backbone AS
15557 1051 2247 55 LDCOM NETWORKS
31148 671 37 9 FreeNet ISP
34984 664 188 174 Tellcom Iletisim Hizmetleri
12479 643 653 56 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 626 205 492 Akamai Technologies European
8551 601 360 81 Bezeq International
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 1807 329 130 TVCABLE BOGOTA
28573 1712 1099 60 Types of queries are: POCs, o
8151 1525 3000 330 Uninet S.A. de C.V.
7303 1350 825 189 Telecom Argentina Stet-France
26615 901 684 29 Types of queries are: POCs, o
27947 687 69 110 Telconet S.A
11172 635 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 567 418 66 AVANTEL, S.A.
3816 559 239 96 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
8452 1242 958 13 TEDATA
24863 660 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
15399 190 29 12 Wananchi Online Limited
24835 178 80 8 RAYA Telecom - Egypt
33776 162 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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
7029 3375 990 155 Windstream Communications Inc
6389 3374 3807 197 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
4766 1932 11102 681 Korea Telecom (KIX)
1785 1880 680 127 AppliedTheory Corporation
10620 1807 329 130 TVCABLE BOGOTA
8402 1783 544 16 Corbina telecom
17974 1759 503 64 PT TELEKOMUNIKASI INDONESIA
28573 1712 1099 60 Types of queries are: POCs, o
7545 1652 303 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3374 3177 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1783 1767 Corbina telecom
1785 1880 1753 AppliedTheory Corporation
17974 1759 1695 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1712 1652 Types of queries are: POCs, o
7545 1652 1563 TPG Internet Pty Ltd
22773 1546 1435 Cox Communications, Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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,
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /8:19 /9:12 /10:28 /11:81 /12:234
/13:458 /14:828 /15:1507 /16:12346 /17:6530 /18:10855
/19:21089 /20:29833 /21:30013 /22:40471 /23:37814 /24:212135
/25:69 /26:76 /27:110 /28:276 /29:108 /30:510
/31:20 /32:461
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3035 3375 Windstream Communications Inc
6389 2090 3374 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1760 1783 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1349 1401 Mediacom Communications Corp
11492 1128 1165 Cable One
1785 1062 1880 AppliedTheory Corporation
8452 1055 1242 TEDATA
7011 1037 1151 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:761 4:18 6:3 8:395 12:1977
13:1 14:607 15:12 16:3 17:7 20:8
23:146 24:1764 27:1244 31:960 32:124 33:2
34:2 36:8 37:295 38:786 39:4 40:120
41:3117 42:129 44:3 46:1462 47:3 49:347
50:517 52:13 54:6 55:11 56:3 57:46
58:962 59:493 60:278 61:1213 62:995 63:2011
64:4223 65:2276 66:4529 67:2052 68:1331 69:3298
70:948 71:438 72:1833 73:1 74:2645 75:504
76:332 77:964 78:985 79:513 80:1240 81:910
82:665 83:555 84:628 85:1199 86:731 87:922
88:351 89:1623 90:296 91:4645 92:522 93:1507
94:1464 95:1162 96:378 97:316 98:822 99:38
100:6 101:151 103:930 106:64 107:177 108:213
109:1560 110:759 111:900 112:445 113:559 114:636
115:781 116:881 117:726 118:921 119:1209 120:339
121:718 122:1659 123:1101 124:1368 125:1265 128:552
129:193 130:266 131:595 132:173 133:21 134:244
135:63 136:211 137:194 138:275 139:157 140:494
141:241 142:387 143:403 144:499 145:69 146:492
147:253 148:758 149:296 150:157 151:176 152:459
153:171 154:7 155:446 156:213 157:381 158:163
159:520 160:326 161:249 162:343 163:186 164:544
165:409 166:562 167:463 168:811 169:149 170:844
171:123 172:2 173:1734 174:596 175:447 176:458
177:577 178:1291 180:1170 181:73 182:769 183:277
184:448 185:1 186:2136 187:844 188:1143 189:1197
190:5560 192:6011 193:5624 194:4595 195:3684 196:1289
197:187 198:3637 199:4469 200:5772 201:1657 202:8470
203:8633 204:4359 205:2471 206:2764 207:2809 208:4081
209:3636 210:2783 211:1478 212:2034 213:1914 214:874
215:108 216:5069 217:1529 218:540 219:347 220:1237
221:553 222:331 223:327
End of report
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