Routing Table Report 00:00 GMT Tue 10 Apr, 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: 408518
Prefixes after maximum aggregation: 173372
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 196610
Total ASes present in the Internet Routing Table: 40655
Prefixes per ASN: 10.05
Origin-only ASes present in the Internet Routing Table: 33018
Origin ASes announcing only one prefix: 15471
Transit ASes present in the Internet Routing Table: 5432
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 6168
Unregistered ASNs in the Routing Table: 321
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 2205
Prefixes from 32-bit ASNs in the Routing Table: 5420
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1447
Number of addresses announced to Internet: 2534422357
Equivalent to 151 /8s, 16 /16s and 55 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
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: 172047
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97375
Total APNIC prefixes after maximum aggregation: 31191
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93854
Unique aggregates announced from the APNIC address blocks: 39459
APNIC Region origin ASes present in the Internet Routing Table: 4666
APNIC Prefixes per ASN: 20.11
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 741
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 173
Number of APNIC addresses announced to Internet: 643021568
Equivalent to 38 /8s, 83 /16s and 187 /24s
Percentage of available APNIC address space announced: 81.5
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: 152166
Total ARIN prefixes after maximum aggregation: 78038
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123242
Unique aggregates announced from the ARIN address blocks: 50034
ARIN Region origin ASes present in the Internet Routing Table: 14960
ARIN Prefixes per ASN: 8.24
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1562
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805919744
Equivalent to 48 /8s, 9 /16s and 92 /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: 103083
Total RIPE prefixes after maximum aggregation: 53511
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93427
Unique aggregates announced from the RIPE address blocks: 57281
RIPE Region origin ASes present in the Internet Routing Table: 16372
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7950
RIPE Region transit ASes present in the Internet Routing Table: 2621
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1492
Number of RIPE addresses announced to Internet: 502531212
Equivalent to 29 /8s, 244 /16s and 4 /24s
Percentage of available RIPE address space announced: 81.0
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: 40976
Total LACNIC prefixes after maximum aggregation: 8204
LACNIC Deaggregation factor: 4.99
Prefixes being announced from the LACNIC address blocks: 40513
Unique aggregates announced from the LACNIC address blocks: 19763
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.76
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 518
Number of LACNIC addresses announced to Internet: 98925576
Equivalent to 5 /8s, 229 /16s and 124 /24s
Percentage of available LACNIC address space announced: 65.5
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: 8963
Total AfriNIC prefixes after maximum aggregation: 2131
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 7021
Unique aggregates announced from the AfriNIC address blocks: 2160
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.1
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: 31539200
Equivalent to 1 /8s, 225 /16s and 64 /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 1917 11106 689 Korea Telecom (KIX)
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1651 301 85 TPG Internet Pty Ltd
4755 1590 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1245 94 541 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1172 1062 11 Vietel Corporation
4808 1080 2024 306 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd.
18101 948 131 160 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 3431 3807 195 bellsouth.net, inc.
7029 3415 1015 166 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1895 680 128 AppliedTheory Corporation
20115 1638 1561 617 Charter Communications
4323 1593 1059 379 Time Warner Telecom
22773 1572 2910 111 Cox Communications, Inc.
30036 1463 265 744 Mediacom Communications Corp
7018 1283 13902 831 AT&T WorldNet Services
11492 1185 216 365 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 1834 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
286 1066 853 199 KPNQwest Backbone AS
34984 680 188 176 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 656 658 57 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 638 206 500 Akamai Technologies European
8551 600 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1795 327 163 TVCABLE BOGOTA
28573 1771 1105 61 Types of queries are: POCs, o
8151 1554 3000 330 Uninet S.A. de C.V.
6503 1544 418 67 AVANTEL, S.A.
7303 1352 826 188 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 688 74 102 Telconet S.A
11172 637 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 575 242 100 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 1311 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 492 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 201 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 162 666 85 Johnnic e-Ventures
29571 161 15 16 Ci Telecom Autonomous system
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 3431 3807 195 bellsouth.net, inc.
7029 3415 1015 166 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1917 11106 689 Korea Telecom (KIX)
1785 1895 680 128 AppliedTheory Corporation
8402 1834 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1771 1105 61 Types of queries are: POCs, o
7545 1651 301 85 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
7029 3415 3249 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1834 1818 Corbina telecom
1785 1895 1767 AppliedTheory Corporation
17974 1788 1725 PT TELEKOMUNIKASI INDONESIA
28573 1771 1710 Types of queries are: POCs, o
10620 1795 1632 TVCABLE BOGOTA
7545 1651 1566 TPG Internet Pty Ltd
6503 1544 1477 AVANTEL, S.A.
22773 1572 1461 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 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 12.45.103.0/24 209 Qwest
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 /12:235
/13:459 /14:836 /15:1517 /16:12332 /17:6548 /18:10882
/19:21142 /20:29978 /21:30207 /22:40795 /23:38175 /24:213671
/25:69 /26:76 /27:106 /28:270 /29:99 /30:499
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3415 Windstream Communications Inc
6389 2149 3431 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1811 1834 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1403 1463 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1120 1311 TEDATA
1785 1067 1895 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:756 4:18 6:3 8:396 12:2000
13:1 14:606 15:12 16:3 17:7 20:8
23:160 24:1776 27:1268 31:999 32:120 33:2
34:2 36:8 37:325 38:794 39:4 40:120
41:3118 42:132 44:3 46:1472 47:3 49:355
50:540 52:12 54:7 55:10 56:3 57:39
58:966 59:518 60:279 61:1279 62:985 63:2008
64:4183 65:2261 66:4515 67:2058 68:1334 69:3282
70:954 71:468 72:1862 73:1 74:2651 75:507
76:326 77:968 78:1007 79:504 80:1213 81:907
82:676 83:549 84:497 85:1208 86:412 87:924
88:354 89:1648 90:297 91:4696 92:523 93:1448
94:1476 95:1142 96:363 97:318 98:890 99:37
100:7 101:171 103:955 106:105 107:181 108:222
109:1295 110:762 111:904 112:449 113:593 114:626
115:854 116:916 117:724 118:918 119:1208 120:345
121:830 122:1670 123:1112 124:1375 125:1257 128:558
129:193 130:258 131:595 132:173 133:21 134:246
135:62 136:210 137:177 138:354 139:158 140:490
141:244 142:387 143:399 144:513 145:65 146:487
147:284 148:801 149:299 150:160 151:176 152:462
153:172 154:7 155:445 156:216 157:381 158:175
159:522 160:342 161:259 162:350 163:189 164:572
165:407 166:562 167:464 168:821 169:128 170:845
171:127 172:4 173:1761 174:575 175:439 176:465
177:658 178:1324 180:1203 181:73 182:795 183:285
184:455 185:1 186:2170 187:1012 188:1188 189:1789
190:5485 192:6022 193:5632 194:4642 195:3654 196:1293
197:126 198:3643 199:4482 200:5824 201:1913 202:8502
203:8614 204:4350 205:2473 206:2771 207:2816 208:4067
209:3614 210:2782 211:1489 212:2046 213:1910 214:881
215:109 216:5105 217:1531 218:546 219:358 220:1233
221:555 222:329 223:330
End of report
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