Routing Table Report 08:00 +10GMT Wed 29 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392670
Prefixes after maximum aggregation: 168232
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193841
Total ASes present in the Internet Routing Table: 38059
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32780
Origin ASes announcing only one prefix: 15535
Transit ASes present in the Internet Routing Table: 5279
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1134
Unregistered ASNs in the Routing Table: 197
Number of 32-bit ASNs allocated by the RIRs: 2297
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4841
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 374
Number of addresses announced to Internet: 2540350208
Equivalent to 151 /8s, 106 /16s and 171 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 165494
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92782
Total APNIC prefixes after maximum aggregation: 30433
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90132
Unique aggregates announced from the APNIC address blocks: 39348
APNIC Region origin ASes present in the Internet Routing Table: 4605
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641004032
Equivalent to 38 /8s, 52 /16s and 242 /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: 147265
Total ARIN prefixes after maximum aggregation: 74934
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119272
Unique aggregates announced from the ARIN address blocks: 49599
ARIN Region origin ASes present in the Internet Routing Table: 14861
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5679
ARIN Region transit ASes present in the Internet Routing Table: 1518
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805426944
Equivalent to 48 /8s, 1 /16s and 215 /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: 100064
Total RIPE prefixes after maximum aggregation: 52725
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91673
Unique aggregates announced from the RIPE address blocks: 56795
RIPE Region origin ASes present in the Internet Routing Table: 16332
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 8004
RIPE Region transit ASes present in the Internet Routing Table: 2591
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501221632
Equivalent to 29 /8s, 224 /16s and 9 /24s
Percentage of available RIPE address space announced: 80.7
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: 38230
Total LACNIC prefixes after maximum aggregation: 7971
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38041
Unique aggregates announced from the LACNIC address blocks: 19641
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.34
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 97400832
Equivalent to 5 /8s, 206 /16s and 56 /24s
Percentage of available LACNIC address space announced: 64.5
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: 8753
Total AfriNIC prefixes after maximum aggregation: 2071
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6785
Unique aggregates announced from the AfriNIC address blocks: 2135
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31494400
Equivalent to 1 /8s, 224 /16s and 145 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1923 11104 679 Korea Telecom (KIX)
17974 1649 503 36 PT Telekomunikasi Indonesia
7545 1640 303 87 TPG Internet Pty Ltd
4755 1544 386 160 TATA Communications formerly
9829 1182 997 29 National Internet Backbone
9583 1132 84 481 Sify Limited
7552 1101 1062 11 Vietel Corporation
24560 1009 385 167 Bharti Airtel Ltd., Telemedia
4808 978 1946 279 CNCGROUP IP network China169
18101 950 130 155 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3449 1040 172 Windstream Communications Inc
6389 3432 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1875 680 125 PaeTec Communications, Inc.
20115 1630 1551 630 Charter Communications
4323 1608 1075 383 tw telecom holdings, inc.
22773 1537 2910 110 Cox Communications Inc.
30036 1406 252 745 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1315 6997 857 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1661 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 NEUF CEGETEL (formerly LDCOM
34984 656 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 620 202 480 Akamai Technologies European
12479 606 644 55 France Telecom Espana SA
8551 601 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 541 37 9 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1755 324 173 Types of queries are: POCs, o
28573 1688 1088 63 Types of queries are: POCs, o
8151 1344 2994 342 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 896 664 33 Tim Celular S.A.
27947 639 67 108 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
6503 565 418 67 Axtel, S.A.B. de C.V.
3816 563 240 89 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1258 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 168 12 19 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3449 1040 172 Windstream Communications Inc
6389 3432 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1923 11104 679 Korea Telecom (KIX)
1785 1875 680 125 PaeTec Communications, Inc.
10620 1755 324 173 Types of queries are: POCs, o
28573 1688 1088 63 Types of queries are: POCs, o
8402 1661 480 15 Corbina telecom
17974 1649 503 36 PT Telekomunikasi Indonesia
7545 1640 303 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3432 3232 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1875 1750 PaeTec Communications, Inc.
8402 1661 1646 Corbina telecom
28573 1688 1625 Types of queries are: POCs, o
17974 1649 1613 PT Telekomunikasi Indonesia
10620 1755 1582 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
22773 1537 1427 Cox Communications Inc.
2118 1398 1385 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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 18779 Guru.com
23.27.0.0/16 18779 Guru.com
Complete listing at http://thyme.rand.apnic.net/london/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 /10:28 /11:81 /12:234
/13:458 /14:814 /15:1470 /16:12110 /17:6201 /18:10336
/19:20497 /20:28287 /21:29035 /22:39344 /23:36783 /24:206410
/25:11 /26:21 /27:20 /28:154 /29:135 /30:66
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3087 3449 Windstream Communications Inc
6389 2106 3432 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1652 1755 Types of queries are: POCs, o
8402 1640 1661 Corbina telecom
30036 1356 1406 Mediacom Communications Corp
11492 1123 1160 CABLE ONE, INC.
8452 1066 1258 TEDATA
1785 1064 1875 PaeTec Communications, Inc.
15557 1046 1099 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:516 2:670 4:14 6:3 8:388 12:1962
13:1 14:592 15:11 16:3 17:7 20:8
23:135 24:1720 27:1195 31:947 32:60 33:2
34:2 36:9 37:209 38:772 40:116 41:2995
42:119 44:3 46:1372 47:3 49:329 50:511
52:13 54:3 55:7 56:3 57:35 58:924
59:484 60:343 61:1086 62:961 63:2004 64:4099
65:2275 66:4448 67:2048 68:1172 69:3166 70:913
71:409 72:1791 74:2644 75:470 76:319 77:971
78:961 79:484 80:1227 81:882 82:633 83:539
84:588 85:1160 86:735 87:914 88:334 89:1566
90:284 91:4529 92:513 93:1372 94:1374 95:1092
96:416 97:316 98:817 99:38 100:4 101:149
103:829 106:44 107:162 108:178 109:1541 110:717
111:854 112:425 113:534 114:601 115:776 116:856
117:703 118:900 119:1248 120:360 121:659 122:1587
123:1075 124:1302 125:1319 128:501 129:182 130:227
131:587 132:163 133:21 134:224 135:62 136:212
137:181 138:268 139:144 140:466 141:263 142:376
143:409 144:512 145:69 146:479 147:246 148:713
149:299 150:155 151:198 152:446 153:171 154:6
155:415 156:210 157:338 158:164 159:441 160:321
161:227 162:339 163:178 164:527 165:395 166:558
167:458 168:765 169:147 170:838 171:119 172:4
173:1724 174:603 175:421 176:513 177:517 178:1278
180:1181 181:69 182:723 183:278 184:432 185:1
186:2057 187:861 188:1084 189:1209 190:5444 192:5947
193:5559 194:4345 195:3394 196:1271 197:167 198:3584
199:4371 200:5630 201:1742 202:8170 203:8574 204:4281
205:2421 206:2652 207:2721 208:4057 209:3518 210:2693
211:1450 212:2029 213:1859 214:851 215:100 216:5006
217:1511 218:534 219:327 220:1224 221:547 222:297
223:300
End of report
