The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Sunday, December 8, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Mon 09 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 469690
Prefixes after maximum aggregation: 188750
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234727
Total ASes present in the Internet Routing Table: 45521
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35449
Origin ASes announcing only one prefix: 16280
Transit ASes present in the Internet Routing Table: 5816
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1098
Unregistered ASNs in the Routing Table: 294
Number of 32-bit ASNs allocated by the RIRs: 5478
Number of 32-bit ASNs visible in the Routing Table: 4256
Prefixes from 32-bit ASNs in the Routing Table: 13312
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1334
Number of addresses announced to Internet: 2656982016
Equivalent to 158 /8s, 94 /16s and 84 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162445

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110397
Total APNIC prefixes after maximum aggregation: 33556
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112629
Unique aggregates announced from the APNIC address blocks: 48038
APNIC Region origin ASes present in the Internet Routing Table: 4850
APNIC Prefixes per ASN: 23.22
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 812
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 778
Number of APNIC addresses announced to Internet: 729011456
Equivalent to 43 /8s, 115 /16s and 213 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161638
Total ARIN prefixes after maximum aggregation: 81375
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162510
Unique aggregates announced from the ARIN address blocks: 75145
ARIN Region origin ASes present in the Internet Routing Table: 15878
ARIN Prefixes per ASN: 10.23
ARIN Region origin ASes announcing only one prefix: 6001
ARIN Region transit ASes present in the Internet Routing Table: 1620
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 21
Number of ARIN region 32-bit ASNs visible in the Routing Table: 43
Number of ARIN addresses announced to Internet: 1072529664
Equivalent to 63 /8s, 237 /16s and 129 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119087
Total RIPE prefixes after maximum aggregation: 61115
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122886
Unique aggregates announced from the RIPE address blocks: 79034
RIPE Region origin ASes present in the Internet Routing Table: 17522
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8290
RIPE Region transit ASes present in the Internet Routing Table: 2785
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2511
Number of RIPE addresses announced to Internet: 656226816
Equivalent to 39 /8s, 29 /16s and 58 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52735
Total LACNIC prefixes after maximum aggregation: 9892
LACNIC Deaggregation factor: 5.33
Prefixes being announced from the LACNIC address blocks: 57959
Unique aggregates announced from the LACNIC address blocks: 27408
LACNIC Region origin ASes present in the Internet Routing Table: 2045
LACNIC Prefixes per ASN: 28.34
LACNIC Region origin ASes announcing only one prefix: 556
LACNIC Region transit ASes present in the Internet Routing Table: 394
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 917
Number of LACNIC addresses announced to Internet: 146229760
Equivalent to 8 /8s, 183 /16s and 74 /24s
Percentage of available LACNIC address space announced: 87.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11719
Total AfriNIC prefixes after maximum aggregation: 2585
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12371
Unique aggregates announced from the AfriNIC address blocks: 4050
AfriNIC Region origin ASes present in the Internet Routing Table: 691
AfriNIC Prefixes per ASN: 17.90
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 140
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 48538112
Equivalent to 2 /8s, 228 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2721 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2162 11551 653 Korea Telecom (KIX)
7545 2112 319 110 TPG Internet Pty Ltd
4755 1795 392 190 TATA Communications formerly
9829 1522 1246 45 BSNL National Internet Backbo
9583 1418 113 570 Sify Limited
4808 1291 2195 371 CNCGROUP IP network: China169
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1173 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2296 2939 137 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2044 686 131 PaeTec Communications, Inc.
20115 1680 1656 596 Charter Communications
4323 1648 1098 419 Time Warner Telecom
701 1510 11144 783 MCI Communications Services,
30036 1380 311 580 Mediacom Communications Corp
7018 1337 17797 877 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1917 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1194 451 899 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 793 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3417 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1735 1161 230 Telecom Argentina Stet-France
18881 1709 908 20 Global Village Telecom
8151 1358 2855 424 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 817 93 88 Telconet S.A
6147 791 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 775 434 60 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
29571 250 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3417 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2721 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2296 2939 137 Cox Communications, Inc.
4766 2162 11551 653 Korea Telecom (KIX)
7545 2112 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2044 686 131 PaeTec Communications, Inc.
8402 1917 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2721 2633 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2296 2159 Cox Communications, Inc.
7545 2112 2002 TPG Internet Pty Ltd
1785 2044 1913 PaeTec Communications, Inc.
8402 1917 1901 OJSC "Vimpelcom"
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1709 1689 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:928 /15:1630 /16:12822 /17:6739 /18:11209
/19:23101 /20:32926 /21:35526 /22:50118 /23:43746 /24:250034
/25:3 /26:5 /27:10 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1628 1917 OJSC "Vimpelcom"
22773 1548 2296 Cox Communications, Inc.
30036 1220 1380 Mediacom Communications Corp
11492 1183 1224 Cable One
1785 1084 2044 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:924 2:854 3:3 4:16 5:806 6:21
8:612 12:1879 13:3 14:899 15:11 16:3
17:19 18:19 20:25 23:616 24:1757 27:1705
31:1514 32:45 33:2 34:5 36:96 37:1941
38:902 39:5 40:181 41:3241 42:236 44:13
46:2058 47:10 49:700 50:859 52:12 54:44
55:4 56:4 57:26 58:1072 59:583 60:368
61:1482 62:1208 63:1974 64:4335 65:2331 66:4137
67:2090 68:1079 69:3153 70:847 71:503 72:1981
74:2549 75:324 76:293 77:1216 78:1011 79:668
80:1277 81:1037 82:628 83:753 84:585 85:1254
86:382 87:1034 88:548 89:1566 90:154 91:5718
92:622 93:1611 94:2110 95:1538 96:417 97:333
98:1087 99:41 100:33 101:690 103:3792 105:531
106:143 107:228 108:520 109:1998 110:971 111:1121
112:586 113:800 114:751 115:1044 116:1005 117:823
118:1229 119:1292 120:338 121:756 122:1866 123:1267
124:1370 125:1439 128:628 129:233 130:353 131:667
132:350 133:158 134:307 135:72 136:270 137:268
138:351 139:171 140:198 141:343 142:548 143:402
144:497 145:90 146:552 147:430 148:770 149:368
150:153 151:486 152:415 153:207 154:46 155:515
156:306 157:419 158:284 159:695 160:362 161:458
162:898 163:225 164:625 165:580 166:275 167:637
168:1043 169:124 170:1032 171:185 172:11 173:1636
174:647 175:540 176:1323 177:2495 178:1877 179:315
180:1599 181:879 182:1406 183:477 184:622 185:1106
186:2646 187:1442 188:1961 189:1254 190:7316 192:7081
193:5470 194:4031 195:3375 196:1339 197:1052 198:4744
199:5476 200:6054 201:2525 202:8934 203:8886 204:4500
205:2643 206:2883 207:2790 208:3962 209:3663 210:3024
211:1610 212:2170 213:1992 214:887 215:84 216:5385
217:1712 218:631 219:317 220:1265 221:587 222:332
223:520

End of report
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